Delhi's air quality continued to deteriorate in Delhi as people stepped out to celebrate Diwali, festival of lights on Sunday (Nov 8) evening. The city’s instantaneous Air Quality Index (AQI) stood at 371 at 7 pm, in the ‘very poor’ category.&nbsp;Of the 59 monitoring stations that recorded data at 7 pm, 19 were in the ‘severe’ category, seven in the ‘poor’ and the remaining 33 in the ‘very poor’. The worst AQI was recorded at Jahangirpuri at 460.&nbsp;<h2>What are the AQI categories?</h2>&nbsp;0-50: Good51-100: Satisfactory101-200: Moderate201-300: Poor301-400: Very Poor401-500: SevereThe city’s average AQI for the day settled at 376 in the ‘very poor’ category, amid a deteriorating pollution situation. It had stood at 369 on Saturday.&nbsp;The air quality is only expected to worsen on Monday, largely because of the bursting of crackers during Diwali celebration, followed by vehicular emissions and the stubble-burning in farms of Haryana and Punjab.&nbsp;<h2>GRAP 3 in place</h2>&nbsp;The Delhi government in order to tackle the winter pollution and improve air quality over the coming months in the city brought into effect Stage 3 of the Graded Response Action Plan (Grap) in Delhi-NCR on Friday (Nov 6). GRAP 3 is introduced when the air quality worsens to "severe" (Between 401-500).&nbsp;All non-essential construction and demolition activities, including earthwork, piling, trenching, and open-air operations of Ready-Mix Concrete (RMC) plants are banned. movement of BS-3 petrol and BS-4 diesel four-wheelers in Delhi and neighbouring NCR districts are not allowed to ply.&nbsp;In order to tackle the winter pollution and improve air quality over the coming months in the national capital, new rules regarding the entry of vehicles and construction work had kicked in on Sunday, Nov 1 but these rules get stricter when GRAP 3 is introduced.&nbsp;It is a measure to prevent further deterioration in air quality once pollution levels cross specified thresholds.&nbsp;Under the rule government offices in Delhi-NCR are asked to work with 50 per cent of their staff, with the remaining employees working from home.&nbsp;

Of the 59 monitoring stations, 19 recorded Air Quality Index (AQI) in the ‘severe’ category raising concerns of AQI worsening further on Monday.

Delhi's air quality continued to deteriorate in Delhi as people stepped out to celebrate Diwali, festival of lights on Sunday (Nov 8) evening. The city’s instantaneous Air Quality Index (AQI) stood at 371 at 7 pm, in the ‘very poor’ category. Of the 59 monitoring stations that recorded data at 7 pm, 19 were in the ‘severe’ category, seven in the ‘poor’ and the remaining 33 in the ‘very poor’. The worst AQI was recorded at Jahangirpuri at 460. What are the AQI categories? 0-50: Good 51-100: Satisfactory 101-200: Moderate 201-300: Poor 301-400: Very Poor 401-500: Severe The city’s average AQI for the day settled at 376 in the ‘very poor’ category, amid a deteriorating pollution situation. It had stood at 369 on Saturday. The air quality is only expected to worsen on Monday, largely because of the bursting of crackers during Diwali celebration, followed by vehicular emissions and the stubble-burning in farms of Haryana and Punjab. GRAP 3 in place The Delhi government in order to tackle the winter pollution and improve air quality over the coming months in the city brought into effect Stage 3 of the Graded Response Action Plan (Grap) in Delhi-NCR on Friday (Nov 6). GRAP 3 is introduced when the air quality worsens to "severe" (Between 401-500). All non-essential construction and demolition activities, including earthwork, piling, trenching, and open-air operations of Ready-Mix Concrete (RMC) plants are banned. movement of BS-3 petrol and BS-4 diesel four-wheelers in Delhi and neighbouring NCR districts are not allowed to ply. In order to tackle the winter pollution and improve air quality over the coming months in the national capital, new rules regarding the entry of vehicles and construction work had kicked in on Sunday, Nov 1 but these rules get stricter when GRAP 3 is introduced. It is a measure to prevent further deterioration in air quality once pollution levels cross specified thresholds. Under the rule government offices in Delhi-NCR are asked to work with 50 per cent of their staff, with the remaining employees working from home.

Of the 59 monitoring stations, 19 recorded Air Quality Index (AQI) in the ‘severe’ category raising concerns of AQI worsening further on Monday.

Delhi's air quality in ‘very poor’ category amid Diwali celebrations

Diwali is almost here, and this is the time to light up our homes and celebrate with loved ones. But the days following the festival can leave many cities struggling with hazy skies, rising pollution levels and air that is difficult to breathe. Firecrackers add to the problem, alongside the falling temperatures, vehicle emissions, construction dust and other sources of pollution.&nbsp;For many people, the effects begin with burning eyes, a scratchy throat or an irritating cough. However, the impact of polluted air is not always immediately noticeable and can extend beyond these initial symptoms. To understand the health risks associated with air pollution and how to stay safe during smog season, WION reached out to doctors, who explain its effects on the body and share simple ways to protect yourself and your family.<h2>How does smog affect your body?</h2>Dr Neerav Tyagi, HOD of Pulmonology at Manipal Hospital, Ghaziabad, explains that smog is a combination of fog and smoke, with pollution from sources such as crop burning, firecrackers, construction activities and industrial waste contributing to the problem. The health consequences, he warns, can extend well beyond a seasonal cough or breathing difficulty.&nbsp;Air pollution does not affect only the lungs. Fine particulate matter and harmful gases can enter the respiratory system, with some tiny particles passing into the bloodstream and affecting other parts of the body.&nbsp;Also Read: <a href="https://www.wionews.com/entertainment/lifestyle/wearing-false-eyelashes-and-lash-glue-daily-doctor-reveals-how-it-could-be-harming-your-eyes-1792250938275">Wearing false eyelashes daily? Doctor reveals how it could be harming your eyes</a>&nbsp;Dr Tyagi explains that the effects can build up gradually. Frequent headaches, burning eyes, throat irritation and disturbed sleep may develop over time and are often dismissed as minor discomforts.Long-term exposure to polluted air is associated with a number of serious health problems, including asthma, chronic bronchitis, chronic obstructive pulmonary disease (COPD), lung cancer, heart disease and stroke. Research has also linked air pollution to kidney problems and an increased risk of cognitive decline, including dementia.&nbsp;The damage may not always be obvious in the early stages, which is why reducing exposure matters even when you feel healthy.&nbsp;Dr Dinraj T V, Consultant Thoracic Surgeon at Narayana Health City, Bengaluru, says the early signs of smog exposure can include eye and throat irritation, coughing, breathlessness, chest tightness and unusual fatigue.&nbsp;“People with respiratory or cardiovascular conditions may notice their symptoms worsening, even after brief exposure. Persistent coughing or difficulty breathing should not be ignored,” he says.<h2>Heart, brain and kidneys also need protection</h2>The lungs are often the first organs people associate with air pollution, but the health risks extend much further.&nbsp;According to Dr Tyagi, polluted air can affect the brain, potentially contributing to strokes, memory problems and dementia in older age. The eyes, nose and throat may experience redness, swelling and itching, while prolonged exposure can also affect kidney function and increase the risk of chronic kidney disease.&nbsp;Air pollution can be especially concerning for the heart. Fine particles entering the bloodstream can trigger inflammation, raise blood pressure and place additional strain on the cardiovascular system.Over time, polluted air can damage blood vessels, contribute to the narrowing of arteries and accelerate the buildup of fatty deposits. If a blood clot blocks a blood vessel supplying the heart or brain, it can trigger a heart attack or stroke. Air pollution may also interfere with the heart's electrical activity, increasing the risk of an irregular heartbeat.&nbsp;Dr Dinraj stresses, "People with existing heart conditions should limit outdoor activity during periods of high pollution, avoid strenuous exercise outdoors, use a well-fitted N95 mask when outside, and take prescribed medication regularly. They should monitor symptoms closely and seek medical advice if their condition worsens."&nbsp;Also Read: <a href="https://www.wionews.com/entertainment/lifestyle/food-shopping-and-festive-cheer-europe-s-most-enchanting-christmas-markets-to-add-to-your-winter-travel-list-1792217830002">Europe's most enchanting Christmas markets to add to your winter travel list</a>&nbsp;Pregnant women and children also need particular attention. Dr Tyagi notes that exposure to polluted air is associated with preterm birth, low birth weight and impaired lung growth in children.<h2>Is a morning walk safe during smog season?</h2>A morning walk or jog may be part of your daily routine, but it is worth reconsidering outdoor exercise when pollution levels are high.&nbsp;Pollution can remain trapped close to the ground, while traffic and weather conditions may contribute to poor air quality.&nbsp;Dr Rajesh Kumar Gupta, Director of the Yashoda Institute of Respiratory Medicine and Interventional Pulmonology at Yashoda Medicity, explains, "The result is irritation of the airways and symptom aggravation, especially in those with asthma, COPD, or other lung conditions.”&nbsp;His advice is to check the Air Quality Index (AQI) before heading outdoors and avoid outdoor exercise when the air quality is poor or worse. On heavily polluted days, indoor exercise may be a better option.<h2>Should you keep your windows open in the morning?</h2>Opening windows is usually considered a simple way to freshen up a home. During smog season, however, the timing matters.&nbsp;Dr Harish Kumar Verma, Director of Pulmonary Medicine and Critical Care at ShardaCare – Healthcity, cautions, "Opening the windows when the air is bad can bring fine particles into your homes and lungs.”&nbsp;Therefore, check local AQI readings and open windows when outdoor air quality improves. Keep windows and doors closed as much as practical during periods of high pollution.&nbsp;Additionally, smoking, burning candles or mosquito coils, and cooking fumes can also worsen the air inside your home.&nbsp;Also Read: <a href="https://www.wionews.com/entertainment/lifestyle/difficulty-walking-or-losing-balance-experts-explain-possible-signs-of-spine-problems-1792141108040">Difficulty walking or losing balance? Experts explain signs of spine problems</a>&nbsp;Using an exhaust fan that vents outdoors, where appropriate, and wiping surfaces with a damp cloth can help reduce indoor pollutants and dust.<h2>Do air purifiers really help?</h2>Air purifiers can be helpful during the smog season. However, choosing the right device and using it correctly are important.&nbsp;“A HEPA filter air purifier with the right size for the room can clean the air of particulate matter like PM2.5 in a closed room,” said Dr Gupta. Its effectiveness depends on factors such as room size, clean air delivery rate (CADR), filter condition and the amount of outdoor air entering the space.&nbsp;Dr Verma also recommends a good-quality HEPA air purifier for bedrooms and other commonly used areas. “It's important to remember that indoor plants are great to have but they're not a solution to indoor air pollution.”&nbsp;Although some laboratory studies suggest plants can absorb certain airborne pollutants, their effect is too small to meaningfully clean the air in an average home. Overwatering plants can also encourage mould growth, which may trigger allergies or asthma in some people.&nbsp;Air purifiers cannot remove every gaseous pollutant, and they do not make a home completely pollution-free. Keep doors and windows closed when outdoor air quality is poor.<h2>Can a cloth mask protect you from smog?</h2>Not all masks offer the same level of protection against air pollution.&nbsp;Dr Gupta explains that ordinary cloth masks and surgical masks do little to filter out the tiniest airborne particles, including PM2.5, which can travel deep into the lungs.&nbsp;“A tight-fitting N95 (or similar) respirator worn over your nose and mouth and genuine can be effective at filtering PM2.5.”&nbsp;A respirator must fit properly to work effectively. Gaps around the face, an uncovered nose or mouth, and facial hair interfering with the seal can reduce its effectiveness.&nbsp;Even a well-fitting N95 mask does not provide complete protection from pollution. Dr Gupta advises limiting outdoor exposure, especially for people with asthma, COPD or existing heart conditions.&nbsp;Also Read: <a href="https://www.wionews.com/entertainment/lifestyle/winnie-the-pooh-turns-100-before-pooh-there-was-an-orphaned-bear-a-soldier-and-a-journey-to-london-1791986597925">Did you know Winnie-the-Pooh was inspired by a real $20 Canadian war bear?</a><h2>Tips to stay healthy from Diwali’s smog</h2>Daily AQI Readings&nbsp;Check the local Air Quality Index each day, especially before traveling, exercising or spending time outdoors. When pollution levels are poor or worse, reduce unnecessary outdoor activity and shift workouts indoors.&nbsp;Reduce indoor pollution&nbsp;Keep windows and doors closed when outdoor air quality is poor. Use a properly sized HEPA air purifier in frequently used rooms, avoid smoking indoors and minimise pollution from candles, mosquito coils and cooking fumes. Ventilate your home when outdoor air quality improves.&nbsp;Wear the right mask when outdoors&nbsp;If you must go outside during periods of high pollution, a genuine, well-fitting N95 or equivalent respirator can help filter fine particles. Regular cloth and surgical masks do not effectively block PM2.5.Even with a mask on, it’s still important to reduce exposure.”&nbsp;For those with pre-existing health conditions&nbsp;People with asthma, COPD, heart disease or other chronic conditions should continue to take their prescribed medicines and keep their inhalers handy, if they use them. Avoid strenuous outdoor activity when pollution is high and seek medical advice if symptoms worsen.&nbsp;When to seek medical advice&nbsp;Do not dismiss persistent coughing, increasing breathlessness or chest discomfort as normal effects of smog. If breathlessness persists, the cough worsens, or chest discomfort develops, medical attention should be sought, Dr Dinraj said. If you have sudden chest pain, severe difficulty breathing, dizziness or fainting, get medical help immediately. Sudden weakness can also signal a serious medical emergency.

Firecrackers during Diwali can worsen air pollution, adding to the seasonal smog that affects millions of people across India. Doctors explain how polluted air affects your health.

Diwali is almost here, and this is the time to light up our homes and celebrate with loved ones. But the days following the festival can leave many cities struggling with hazy skies, rising pollution levels and air that is difficult to breathe. Firecrackers add to the problem, alongside the falling temperatures, vehicle emissions, construction dust and other sources of pollution. For many people, the effects begin with burning eyes, a scratchy throat or an irritating cough. However, the impact of polluted air is not always immediately noticeable and can extend beyond these initial symptoms. To understand the health risks associated with air pollution and how to stay safe during smog season, WION reached out to doctors, who explain its effects on the body and share simple ways to protect yourself and your family. How does smog affect your body? Dr Neerav Tyagi, HOD of Pulmonology at Manipal Hospital, Ghaziabad, explains that smog is a combination of fog and smoke, with pollution from sources such as crop burning, firecrackers, construction activities and industrial waste contributing to the problem. The health consequences, he warns, can extend well beyond a seasonal cough or breathing difficulty. Air pollution does not affect only the lungs. Fine particulate matter and harmful gases can enter the respiratory system, with some tiny particles passing into the bloodstream and affecting other parts of the body. Also Read: Wearing false eyelashes daily? Doctor reveals how it could be harming your eyes Dr Tyagi explains that the effects can build up gradually. Frequent headaches, burning eyes, throat irritation and disturbed sleep may develop over time and are often dismissed as minor discomforts. Long-term exposure to polluted air is associated with a number of serious health problems, including asthma, chronic bronchitis, chronic obstructive pulmonary disease (COPD), lung cancer, heart disease and stroke. Research has also linked air pollution to kidney problems and an increased risk of cognitive decline, including dementia. The damage may not always be obvious in the early stages, which is why reducing exposure matters even when you feel healthy. Dr Dinraj T V, Consultant Thoracic Surgeon at Narayana Health City, Bengaluru, says the early signs of smog exposure can include eye and throat irritation, coughing, breathlessness, chest tightness and unusual fatigue. “People with respiratory or cardiovascular conditions may notice their symptoms worsening, even after brief exposure. Persistent coughing or difficulty breathing should not be ignored,” he says. Heart, brain and kidneys also need protection The lungs are often the first organs people associate with air pollution, but the health risks extend much further. According to Dr Tyagi, polluted air can affect the brain, potentially contributing to strokes, memory problems and dementia in older age. The eyes, nose and throat may experience redness, swelling and itching, while prolonged exposure can also affect kidney function and increase the risk of chronic kidney disease. Air pollution can be especially concerning for the heart. Fine particles entering the bloodstream can trigger inflammation, raise blood pressure and place additional strain on the cardiovascular system. Over time, polluted air can damage blood vessels, contribute to the narrowing of arteries and accelerate the buildup of fatty deposits. If a blood clot blocks a blood vessel supplying the heart or brain, it can trigger a heart attack or stroke. Air pollution may also interfere with the heart's electrical activity, increasing the risk of an irregular heartbeat. Dr Dinraj stresses, "People with existing heart conditions should limit outdoor activity during periods of high pollution, avoid strenuous exercise outdoors, use a well-fitted N95 mask when outside, and take prescribed medication regularly. They should monitor symptoms closely and seek medical advice if their condition worsens." Also Read: Europe's most enchanting Christmas markets to add to your winter travel list Pregnant women and children also need particular attention. Dr Tyagi notes that exposure to polluted air is associated with preterm birth, low birth weight and impaired lung growth in children. Is a morning walk safe during smog season? A morning walk or jog may be part of your daily routine, but it is worth reconsidering outdoor exercise when pollution levels are high. Pollution can remain trapped close to the ground, while traffic and weather conditions may contribute to poor air quality. Dr Rajesh Kumar Gupta, Director of the Yashoda Institute of Respiratory Medicine and Interventional Pulmonology at Yashoda Medicity, explains, "The result is irritation of the airways and symptom aggravation, especially in those with asthma, COPD, or other lung conditions.” His advice is to check the Air Quality Index (AQI) before heading outdoors and avoid outdoor exercise when the air quality is poor or worse. On heavily polluted days, indoor exercise may be a better option. Should you keep your windows open in the morning? Opening windows is usually considered a simple way to freshen up a home. During smog season, however, the timing matters. Dr Harish Kumar Verma, Director of Pulmonary Medicine and Critical Care at ShardaCare – Healthcity, cautions, "Opening the windows when the air is bad can bring fine particles into your homes and lungs.” Therefore, check local AQI readings and open windows when outdoor air quality improves. Keep windows and doors closed as much as practical during periods of high pollution. Additionally, smoking, burning candles or mosquito coils, and cooking fumes can also worsen the air inside your home. Also Read: Difficulty walking or losing balance? Experts explain signs of spine problems Using an exhaust fan that vents outdoors, where appropriate, and wiping surfaces with a damp cloth can help reduce indoor pollutants and dust. Do air purifiers really help? Air purifiers can be helpful during the smog season. However, choosing the right device and using it correctly are important. “A HEPA filter air purifier with the right size for the room can clean the air of particulate matter like PM2.5 in a closed room,” said Dr Gupta. Its effectiveness depends on factors such as room size, clean air delivery rate (CADR), filter condition and the amount of outdoor air entering the space. Dr Verma also recommends a good-quality HEPA air purifier for bedrooms and other commonly used areas. “It's important to remember that indoor plants are great to have but they're not a solution to indoor air pollution.” Although some laboratory studies suggest plants can absorb certain airborne pollutants, their effect is too small to meaningfully clean the air in an average home. Overwatering plants can also encourage mould growth, which may trigger allergies or asthma in some people. Air purifiers cannot remove every gaseous pollutant, and they do not make a home completely pollution-free. Keep doors and windows closed when outdoor air quality is poor. Can a cloth mask protect you from smog? Not all masks offer the same level of protection against air pollution. Dr Gupta explains that ordinary cloth masks and surgical masks do little to filter out the tiniest airborne particles, including PM2.5, which can travel deep into the lungs. “A tight-fitting N95 (or similar) respirator worn over your nose and mouth and genuine can be effective at filtering PM2.5.” A respirator must fit properly to work effectively. Gaps around the face, an uncovered nose or mouth, and facial hair interfering with the seal can reduce its effectiveness. Even a well-fitting N95 mask does not provide complete protection from pollution. Dr Gupta advises limiting outdoor exposure, especially for people with asthma, COPD or existing heart conditions. Also Read: Did you know Winnie-the-Pooh was inspired by a real $20 Canadian war bear? Tips to stay healthy from Diwali’s smog Daily AQI Readings Check the local Air Quality Index each day, especially before traveling, exercising or spending time outdoors. When pollution levels are poor or worse, reduce unnecessary outdoor activity and shift workouts indoors. Reduce indoor pollution Keep windows and doors closed when outdoor air quality is poor. Use a properly sized HEPA air purifier in frequently used rooms, avoid smoking indoors and minimise pollution from candles, mosquito coils and cooking fumes. Ventilate your home when outdoor air quality improves. Wear the right mask when outdoors If you must go outside during periods of high pollution, a genuine, well-fitting N95 or equivalent respirator can help filter fine particles. Regular cloth and surgical masks do not effectively block PM2.5.Even with a mask on, it’s still important to reduce exposure.” For those with pre-existing health conditions People with asthma, COPD, heart disease or other chronic conditions should continue to take their prescribed medicines and keep their inhalers handy, if they use them. Avoid strenuous outdoor activity when pollution is high and seek medical advice if symptoms worsen. When to seek medical advice Do not dismiss persistent coughing, increasing breathlessness or chest discomfort as normal effects of smog. If breathlessness persists, the cough worsens, or chest discomfort develops, medical attention should be sought, Dr Dinraj said. If you have sudden chest pain, severe difficulty breathing, dizziness or fainting, get medical help immediately. Sudden weakness can also signal a serious medical emergency.

Firecrackers during Diwali can worsen air pollution, adding to the seasonal smog that affects millions of people across India. Doctors explain how polluted air affects your health.

Smog alert! Doctors explain the truth about masks, air purifiers and indoor plants ahead of Diwali

I went out of Delhi during Diwali and returned on October 29, hoping to have escaped the pollution. But as the flight hovered over the skies of Delhi and the National Capital Region (NCR), the air turned grey. It was a stark contrast to the skies of Chennai, where I had a layover, and Kerala, from where my journey began. Back on the ground, I was told that there had been no sunlight for the past few days. This time, the Deepawali celebrations were loud and smoky — with crackers, government-sanctioned and court-approved.&nbsp;&nbsp;&nbsp;&nbsp;The stated aim was to reclaim the Indian tradition of a “true Diwali”, where fireworks were deemed an important part of the festivities, undoing earlier petitions and court rulings that had restricted their use because of their toxic emissions.Also read: <a href="https://www.wionews.com/photos/diwali-special-not-just-india-these-foreign-countries-also-celebrate-the-festival-1760878472646">Diwali special: Not just India, these foreign countries also celebrate the festival</a> Already, the stubble burning in farms across Punjab, Haryana, and western Uttar Pradesh — an annual affair — had darkened the skies and stung the eyes. The celebration of Diwali with renewed vigour for fireworks added to the toxic mix. Western disturbances — the wind systems that usually clear Delhi’s air in the transition between summer and winter — stayed away for most of the last week of October this year. As a result of this deadly cocktail of factors, Delhi became the most polluted city in the world, the same gas chamber it is notorious for.The Air Quality Index (AQI) — a measure of air pollution — dipped to dangerous levels, hovering in the “severe” category for most of the week. Doctors reported nearly a 50 per cent rise in eye infections in Delhi. Hospitals filled up with patients suffering from bronchitis, asthma, and lung infections, all at a time already known as the peak flu season.Also read: <a href="https://www.wionews.com/photos/diwali-2025-7-timeless-traditional-customs-that-keep-the-festival-of-lights-glowing-1760852309991">Diwali 2025: 7 timeless traditional customs that keep the festival of lights glowing</a><h2>How did we reach here?</h2>Delhi in October 2025 will likely be remembered as a textbook case of pollution caused by human actions. While India has repeatedly asserted that it should not be penalised for historic emissions caused by industrialised nations, a politically motivated decision to reintroduce toxic elements into the air runs counter to its own climate commitments.Also read: <a href="https://www.wionews.com/photos/diwali-2025-10-stunning-decor-ideas-to-brighten-up-your-home-this-festive-season-1760867557369">Diwali 2025: 10 stunning decor ideas to brighten up your home this festive season</a> Despite decades of debate, nothing substantive has been achieved to end stubble burning — the practice of clearing farmlands after the harvest to prepare for the next sowing. Though centuries old, the scale and mechanisation of modern farming have worsened its impact. Despite court interventions and punitive measures, no viable, large-scale alternative to stubble burning has been introduced. What could have been a technical or administrative challenge has instead become a political blame game between states, depending on who is in power and who is in opposition.<h2>Firecrackers: A Chinese tradition adopted for an Indian festival</h2>In spite of talk about so-called “green crackers”, much of the market this year was flooded with imported or locally manufactured fireworks containing similar levels of toxins as before. Few realise that firecrackers were never an original part of Diwali, which for centuries was celebrated by lighting diyas — earthen lamps — to mark the return of Lord Rama to Ayodhya after 14 years of vanvaas, or exile. Firecrackers, originating in China, reached the Indian subcontinent around the 16th or 17th century through trade routes and were gradually incorporated into celebrations. But in the past few years, whether to use them or not became a political flashpoint. The ruling Bharatiya Janata Party (BJP) has often portrayed restrictions on fireworks as an attack on Hindu traditions, arguing that Diwali is incomplete without them.Also read: <a href="https://www.wionews.com/india-news/how-much-will-it-cost-for-cloud-seeding-in-delhi-iit-kanpur-director-says-one-should-not-need-to-spend-this-money-but-bjp-pollution-1761740211656">How much will it cost for cloud seeding in Delhi? IIT Kanpur Director says ‘one should not need to spend this money’ but...</a><h2>Artificial rain: Looking for a needle in a haystack</h2>In an attempt to mitigate the impact of post-Diwali pollution, the Delhi government experimented with cloud seeding and artificial rain. But it was too little, too late. There was no sunlight or breeze for nearly a week, and the air still smelt of burnt paper. Once again, we found ourselves at the mercy of nature to clear the mess we had created.<a href="https://www.wionews.com/videos/effort-to-create-artificial-rain-and-reduce-pollution-fail-in-delhi-1761767579762/embed">https://www.wionews.com/videos/effort-to-create-artificial-rain-and-reduce-pollution-fail-in-delhi-1761767579762/embed</a><h2>GRAPpling with our own mess</h2>There was a time when Delhi managed to address its pollution problem — with the introduction of CNG-run buses and private vehicles, curbs on industrial emissions, and the Graded Response Action Plan (GRAP), which imposed restrictions on construction, vehicular movement, and other activities based on pollution levels. But now, we are grappling with the same menace all over again, with the benefits of those earlier efforts slowly evaporating.&nbsp;Measures like the “odd-even” scheme — which limits private vehicles on the road based on their registration numbers — can only go so far.&nbsp;What we need is a separation of logic from superstitious fervour and political posturing.At the end of the day, it will once again take nature to rescue us. To that extent, our only options seem to be either to pray for rain — or, to satisfy the zealots, to pray to Lord Indra himself. &nbsp;Disclaimer: The views of the writer do not represent the views of WION or ZMCL. Nor does WION or ZMCL endorse the views of the writer.

Delhi’s post-Diwali smog worsened due to stubble burning, fireworks, and weak winds, exposing political hypocrisy and failed climate action.  People in India's capital struggle to breath in toxic air. How did we reach here, once again?

I went out of Delhi during Diwali and returned on October 29, hoping to have escaped the pollution. But as the flight hovered over the skies of Delhi and the National Capital Region (NCR), the air turned grey. It was a stark contrast to the skies of Chennai, where I had a layover, and Kerala, from where my journey began. Back on the ground, I was told that there had been no sunlight for the past few days. This time, the Deepawali celebrations were loud and smoky — with crackers, government-sanctioned and court-approved. The stated aim was to reclaim the Indian tradition of a “true Diwali”, where fireworks were deemed an important part of the festivities, undoing earlier petitions and court rulings that had restricted their use because of their toxic emissions. Also read: Diwali special: Not just India, these foreign countries also celebrate the festival Already, the stubble burning in farms across Punjab, Haryana, and western Uttar Pradesh — an annual affair — had darkened the skies and stung the eyes. The celebration of Diwali with renewed vigour for fireworks added to the toxic mix. Western disturbances — the wind systems that usually clear Delhi’s air in the transition between summer and winter — stayed away for most of the last week of October this year. As a result of this deadly cocktail of factors, Delhi became the most polluted city in the world, the same gas chamber it is notorious for. The Air Quality Index (AQI) — a measure of air pollution — dipped to dangerous levels, hovering in the “severe” category for most of the week. Doctors reported nearly a 50 per cent rise in eye infections in Delhi. Hospitals filled up with patients suffering from bronchitis, asthma, and lung infections, all at a time already known as the peak flu season. Also read: Diwali 2025: 7 timeless traditional customs that keep the festival of lights glowing How did we reach here? Delhi in October 2025 will likely be remembered as a textbook case of pollution caused by human actions. While India has repeatedly asserted that it should not be penalised for historic emissions caused by industrialised nations, a politically motivated decision to reintroduce toxic elements into the air runs counter to its own climate commitments. Also read: Diwali 2025: 10 stunning decor ideas to brighten up your home this festive season Despite decades of debate, nothing substantive has been achieved to end stubble burning — the practice of clearing farmlands after the harvest to prepare for the next sowing. Though centuries old, the scale and mechanisation of modern farming have worsened its impact. Despite court interventions and punitive measures, no viable, large-scale alternative to stubble burning has been introduced. What could have been a technical or administrative challenge has instead become a political blame game between states, depending on who is in power and who is in opposition. Firecrackers: A Chinese tradition adopted for an Indian festival In spite of talk about so-called “green crackers”, much of the market this year was flooded with imported or locally manufactured fireworks containing similar levels of toxins as before. Few realise that firecrackers were never an original part of Diwali, which for centuries was celebrated by lighting diyas — earthen lamps — to mark the return of Lord Rama to Ayodhya after 14 years of vanvaas, or exile. Firecrackers, originating in China, reached the Indian subcontinent around the 16th or 17th century through trade routes and were gradually incorporated into celebrations. But in the past few years, whether to use them or not became a political flashpoint. The ruling Bharatiya Janata Party (BJP) has often portrayed restrictions on fireworks as an attack on Hindu traditions, arguing that Diwali is incomplete without them. Also read: How much will it cost for cloud seeding in Delhi? IIT Kanpur Director says ‘one should not need to spend this money’ but... Artificial rain: Looking for a needle in a haystack In an attempt to mitigate the impact of post-Diwali pollution, the Delhi government experimented with cloud seeding and artificial rain. But it was too little, too late. There was no sunlight or breeze for nearly a week, and the air still smelt of burnt paper. Once again, we found ourselves at the mercy of nature to clear the mess we had created. https://www.wionews.com/videos/effort-to-create-artificial-rain-and-reduce-pollution-fail-in-delhi-1761767579762/embed GRAPpling with our own mess There was a time when Delhi managed to address its pollution problem — with the introduction of CNG-run buses and private vehicles, curbs on industrial emissions, and the Graded Response Action Plan (GRAP), which imposed restrictions on construction, vehicular movement, and other activities based on pollution levels. But now, we are grappling with the same menace all over again, with the benefits of those earlier efforts slowly evaporating. Measures like the “odd-even” scheme — which limits private vehicles on the road based on their registration numbers — can only go so far. What we need is a separation of logic from superstitious fervour and political posturing. At the end of the day, it will once again take nature to rescue us. To that extent, our only options seem to be either to pray for rain — or, to satisfy the zealots, to pray to Lord Indra himself. Disclaimer: The views of the writer do not represent the views of WION or ZMCL. Nor does WION or ZMCL endorse the views of the writer.

Delhi’s post-Diwali smog worsened due to stubble burning, fireworks, and weak winds, exposing political hypocrisy and failed climate action. &nbsp;People in India's capital struggle to breath in toxic air. How did we reach here, once again?

Desolation by Smog: Politics polluted Indian capital Delhi, and we're GRAPpling with our own mess, once again

Every year post the Diwali festival, the national capital Delhi is seen clouded with hazardous and unbreathable air. And it is squarely blamed either on stubble burning, as it coincides with crop harvesting season and fireworks. However, a recent study done by the Indian Institute of Technology (IIT) Delhi has dispelled this notion.

According to their study, the reason air quality dips in the national capital a day after Diwali is because of biomass burning emissions rather than firecrackers.

The study titled 'Chemical speciation and source apportionment of ambient PM2.5’ has shed light on the pollution sources impacting the ambient air quality in New Delhi before, during, and after Diwali. &nbsp;

The researchers found that the metal content in PM2.5 levels rose by 1100 per cent, and the fireworks alone accounted for 95 per cent of the metal PM2.5during Diwali.

“However, the impact of the fireworks plummets within around 12 hours following Diwali,” reveals Chirag Manchanda, the lead author of this study.&nbsp;

The research study published in the journal “Atmospheric Pollution Research” has presented source-apportionment results for highly time-resolved elemental and organic fractions of PM2.5 to address the challenge.

“Both stubble burning and increased heating requirements of the region in winters drive the biomass burning activity”, adds Prof Vikram Singh, Department of Chemical Engineering, IIT Delhi, who was one of the investigators.&nbsp;

The study concludes by arguing, “The result of this study provides crucial insights into a topic of long-standing debate and concern between air quality experts and policymakers committed to alleviating the extreme air pollution events in the capital of Delhi following Diwali,” said the principal investigator Prof. Mayank Kumar, Department of Mechanical Engineering, IIT Delhi. &nbsp;

This study was partly funded by IIT Delhi and the Ministry of Education, Government of India and conducted as part of a collaborative effort between IIT Delhi, IIT Kanpur, and PRL Ahmedabad.&nbsp;

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Every year post the Diwali festival, the national capital Delhi is seen clouded with hazardous and unbreathable air. And it is squarely blamed either on stubble burning, as it coincides with crop harvesting season and fireworks.

Every year post the Diwali festival, the national capital Delhi is seen clouded with hazardous and unbreathable air. And it is squarely blamed either on stubble burning, as it coincides with crop harvesting season and fireworks. However, a recent study done by the Indian Institute of Technology (IIT) Delhi has dispelled this notion. According to their study, the reason air quality dips in the national capital a day after Diwali is because of biomass burning emissions rather than firecrackers. The study titled 'Chemical speciation and source apportionment of ambient PM2.5’ has shed light on the pollution sources impacting the ambient air quality in New Delhi before, during, and after Diwali. The researchers found that the metal content in PM2.5 levels rose by 1100 per cent, and the fireworks alone accounted for 95 per cent of the metal PM2.5during Diwali. “However, the impact of the fireworks plummets within around 12 hours following Diwali,” reveals Chirag Manchanda, the lead author of this study. The research study published in the journal “Atmospheric Pollution Research” has presented source-apportionment results for highly time-resolved elemental and organic fractions of PM2.5 to address the challenge. “Both stubble burning and increased heating requirements of the region in winters drive the biomass burning activity”, adds Prof Vikram Singh, Department of Chemical Engineering, IIT Delhi, who was one of the investigators. The study concludes by arguing, “The result of this study provides crucial insights into a topic of long-standing debate and concern between air quality experts and policymakers committed to alleviating the extreme air pollution events in the capital of Delhi following Diwali,” said the principal investigator Prof. Mayank Kumar, Department of Mechanical Engineering, IIT Delhi. This study was partly funded by IIT Delhi and the Ministry of Education, Government of India and conducted as part of a collaborative effort between IIT Delhi, IIT Kanpur, and PRL Ahmedabad. WATCH WION LIVE HERE You can now write for wionews.com and be a part of the community. Share your stories and opinions with us here.

Biomass burning rather than firecrackers makes Delhi’s air quality poor, says IIT Delhi study

<a href="http://www.wionews.com/india-news/cracker-ban-in-delhi-goes-up-in-smoke-on-diwali-night-22632">The Supreme Court ban on firecrackers in Delhi seems to have had little effect</a> as evident from the levels of air pollution recorded in the national capital this morning.

The pollution indicator of state-run System of Air Quality Forecasting and Research (SAFAR) turned a deep shade of brown, indicating &quot;severe&quot;&nbsp;air quality in the city, PTI reported.

A &quot;severe&quot; air pollution level may&nbsp;affect healthy people and seriously impact those with existing respiratory or cardiovascular diseases.

The Air Quality Index (AQI), a barometer for measuring air pollution, was above 400 in most places in the National Capital Region (NCR). It was at a &quot;hazardous&quot; &nbsp;978 in New Delhi&#39;s RK Puram area today morning.

The US embassy&#39;s pollution monitor recorded &#39;hazardous&#39; air quality with the index scoring an alarming 878, which the mission considers &quot;beyond its air quality index&quot;, which ends at 500.

The highest level of AQI, 999, was recorded in the capital&#39;s Punjabi Bagh and Anand Vihar areas.&nbsp; The minimum level of pollution, An AQI of 221, was recorded at&nbsp;East Delhi&#39;s Dilshad Garden.

On Diwali yesterday, the AQI improved from &quot;severe&quot; in 2016 to &quot;very poor&quot;, the Central Pollution Control Board reported.

The AQI value yesterday in Delhi was 319 (very poor) while it was 431 (severe) in 2016.

A &quot;very poor&quot; air quality implies that people may suffer from respiratory illnesses on prolonged exposure to such air. If the air quality dips further, the AQI will turn &quot;severe&quot;.

An AQI level of 0-50 is considered &quot;good&quot;, 51-100 &quot;satisfactory&quot;, 101-200 &quot;moderate&quot;, 201-300 &quot;poor&quot;, 301-400 &quot;very poor&quot;, and 401 and above is &quot;severe&quot;.

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Visuals of <a href="https://twitter.com/hashtag/smog?src=hash&amp;ref_src=twsrc%5Etfw">#smog</a> from <a href="https://twitter.com/hashtag/Delhi?src=hash&amp;ref_src=twsrc%5Etfw">#Delhi</a>&#39;s Vijay Chowk <a href="https://t.co/5d7S1ZViP7">pic.twitter.com/5d7S1ZViP7</a>
&mdash; ANI (@ANI) <a href="https://twitter.com/ANI/status/921194604719775744?ref_src=twsrc%5Etfw">October 20, 2017</a></blockquote>
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The 24-hour rolling average of PM2.5 and PM10, ultrafine particulates which are up to 30 times tinier than the width of a human hair, were 424 and 571 micrograms per cubic metre (ug/m3), much higher than the safe limits of 60 and 100.

The ultrafine particulates are ones which enter the respiratory system and manage to reach the bloodstream, causing health problems.

The Supreme Court had on October 9 banned the sale of firecrackers this Diwali in view of the severe pollution and smog-like conditions prevalent in Delhi last year.&nbsp;

Delhiites, however, defied the ban and the pollution indexes sharply rose from 7 pm, enveloping the national capital in smog.

The situation was better in the NCR which includes Gurugram, Noida and Ghaziabad, where an AQI between 400-420 was recorded today morning.

Crackers were, however,&nbsp;burst in these regions yesterday, raising question marks on the efficacy of the administration in enforcing the top court&#39;s ban.

The online indicators of the pollution monitoring stations in the city on Diwali glowed red, indicating a &quot;&#39;very poor&quot; air quality as the volume of PM2.5 and PM10 sharply rose from around 7 pm.

Real-time pollution data was alarming. The Delhi Pollution Control Committee&#39;s (DPCC) RK Puram monitoring station recorded PM2.5 and PM10 at 878 and 1,179 micrograms per cubic metre at around 11 pm.

The pollutants peaked after midnight, surpassing the corresponding 24-hour safe limits of 60 and 100 more than 10 times.&nbsp;The monitors stopped working after midnight, suggesting that the pollutants had gone through the roof.

Neighbourhoods reported much lesser noise and smoke till about 6 pm, compared to the previous years.

But as the festivities picked up, the faint echo of crackers started growing louder.

The SAFAR estimated the 24-hour rolling average of PM2.5 and PM10 at 154 and 256 micrograms per cubic metre at around 11 pm, PTI reported.

SAFAR has, however, predicted relatively cleaner post-Diwali air due to favourable meteorological conditions, which are helping prevent the smoke-filled air from the agricultural belt of Haryana and Punjab from entering the national capital.

The Supreme Court-appointed Environment Pollution Prevention and Control Authority (EPCA) is empowered to enforce the Graded Response Action Plan (GRAP) to combat air pollution in Delhi-NCR.

Measures under the GRAP&#39;s &#39;very poor&#39; and &#39;severe&#39; categories, which include a ban on diesel generator sets, came into effect on October 17 and they will remain in force till March 15.&nbsp;

A 'severe' air pollution level may?affect healthy people and seriously impact those with existing respiratory or cardiovascular diseases

The Supreme Court ban on firecrackers in Delhi seems to have had little effect as evident from the levels of air pollution recorded in the national capital this morning. The pollution indicator of state-run System of Air Quality Forecasting and Research (SAFAR) turned a deep shade of brown, indicating "severe" air quality in the city, PTI reported. A "severe" air pollution level may affect healthy people and seriously impact those with existing respiratory or cardiovascular diseases. The Air Quality Index (AQI), a barometer for measuring air pollution, was above 400 in most places in the National Capital Region (NCR). It was at a "hazardous" 978 in New Delhi's RK Puram area today morning. The US embassy's pollution monitor recorded 'hazardous' air quality with the index scoring an alarming 878, which the mission considers "beyond its air quality index", which ends at 500. The highest level of AQI, 999, was recorded in the capital's Punjabi Bagh and Anand Vihar areas. The minimum level of pollution, An AQI of 221, was recorded at East Delhi's Dilshad Garden. On Diwali yesterday, the AQI improved from "severe" in 2016 to "very poor", the Central Pollution Control Board reported. The AQI value yesterday in Delhi was 319 (very poor) while it was 431 (severe) in 2016. A "very poor" air quality implies that people may suffer from respiratory illnesses on prolonged exposure to such air. If the air quality dips further, the AQI will turn "severe". An AQI level of 0-50 is considered "good", 51-100 "satisfactory", 101-200 "moderate", 201-300 "poor", 301-400 "very poor", and 401 and above is "severe". Visuals of #smog from #Delhi's Vijay Chowk pic.twitter.com/5d7S1ZViP7 — ANI (@ANI) October 20, 2017 × The 24-hour rolling average of PM2.5 and PM10, ultrafine particulates which are up to 30 times tinier than the width of a human hair, were 424 and 571 micrograms per cubic metre (ug/m3), much higher than the safe limits of 60 and 100. The ultrafine particulates are ones which enter the respiratory system and manage to reach the bloodstream, causing health problems. The Supreme Court had on October 9 banned the sale of firecrackers this Diwali in view of the severe pollution and smog-like conditions prevalent in Delhi last year. Delhiites, however, defied the ban and the pollution indexes sharply rose from 7 pm, enveloping the national capital in smog. The situation was better in the NCR which includes Gurugram, Noida and Ghaziabad, where an AQI between 400-420 was recorded today morning. Crackers were, however, burst in these regions yesterday, raising question marks on the efficacy of the administration in enforcing the top court's ban. The online indicators of the pollution monitoring stations in the city on Diwali glowed red, indicating a "'very poor" air quality as the volume of PM2.5 and PM10 sharply rose from around 7 pm. Real-time pollution data was alarming. The Delhi Pollution Control Committee's (DPCC) RK Puram monitoring station recorded PM2.5 and PM10 at 878 and 1,179 micrograms per cubic metre at around 11 pm. The pollutants peaked after midnight, surpassing the corresponding 24-hour safe limits of 60 and 100 more than 10 times. The monitors stopped working after midnight, suggesting that the pollutants had gone through the roof. Neighbourhoods reported much lesser noise and smoke till about 6 pm, compared to the previous years. But as the festivities picked up, the faint echo of crackers started growing louder. The SAFAR estimated the 24-hour rolling average of PM2.5 and PM10 at 154 and 256 micrograms per cubic metre at around 11 pm, PTI reported. SAFAR has, however, predicted relatively cleaner post-Diwali air due to favourable meteorological conditions, which are helping prevent the smoke-filled air from the agricultural belt of Haryana and Punjab from entering the national capital. The Supreme Court-appointed Environment Pollution Prevention and Control Authority (EPCA) is empowered to enforce the Graded Response Action Plan (GRAP) to combat air pollution in Delhi-NCR. Measures under the GRAP's 'very poor' and 'severe' categories, which include a ban on diesel generator sets, came into effect on October 17 and they will remain in force till March 15.

Air quality in Delhi improves to 'very poor' on Diwali, 'severe' today

A thick menacing grey haze blanketed the Indian capital today as pollution levels breached the safe limit by over 17 times at several places.&nbsp;

The deteriorating air quality prompted chief minister Arvind Kejriwal to describe Delhi as a &quot;gas chamber&quot; and seek the central government&#39;s intervention.

The post Diwali pollution and burning of crops around the capital has increased the respirable pollutants PM 2.5 and PM 10 to hazardours levels.&nbsp;

Monitoring agencies recorded &quot;severe&quot;&nbsp;quality air and advised people to avoid going outdoors. The smog brought down the visibility to around 200 metres across the city.

The union environment minister Anil Dave called for a meeting of the environment ministers of Delhi and the states in the national capital region on Monday to take stock of the situation and find a solution to combat the problem.&nbsp;

&quot;Pollution has increased to an extent that outdoors in Delhi are resembling a gas chamber. Prima facie the biggest reason seems to be burning of stubble in agricultural fields in Haryana and Punjab in huge quantity,&quot; Kejriwal told a press conference.

Shutting down of schools for a long time was not a feasible solution, he said, when asked about the decision of the civic bodies to keep schools run by it closed for a day in view of pollution.&nbsp;

The chief minister appealed to the people to minimise the use of private vehicles and switch to public transportation facilities. He further advised that farmers should be incentivised, so that they stop burning the crops which lead to decline to qir quality.&nbsp;

On Friday, the National Green Tribunal (NGT) observed that the Delhi government, the central government and other officials have been apathetic to the rising air pollution level.

(WION with inputs from agencies) 
&nbsp;

As Delhi witnessed pollutant levels 17 times above the safe limits, environment ministers urged immediate steps to tackle the situation

A thick menacing grey haze blanketed the Indian capital today as pollution levels breached the safe limit by over 17 times at several places. The deteriorating air quality prompted chief minister Arvind Kejriwal to describe Delhi as a "gas chamber" and seek the central government's intervention. The post Diwali pollution and burning of crops around the capital has increased the respirable pollutants PM 2.5 and PM 10 to hazardours levels. Monitoring agencies recorded "severe" quality air and advised people to avoid going outdoors. The smog brought down the visibility to around 200 metres across the city. The union environment minister Anil Dave called for a meeting of the environment ministers of Delhi and the states in the national capital region on Monday to take stock of the situation and find a solution to combat the problem. "Pollution has increased to an extent that outdoors in Delhi are resembling a gas chamber. Prima facie the biggest reason seems to be burning of stubble in agricultural fields in Haryana and Punjab in huge quantity," Kejriwal told a press conference. Shutting down of schools for a long time was not a feasible solution, he said, when asked about the decision of the civic bodies to keep schools run by it closed for a day in view of pollution. The chief minister appealed to the people to minimise the use of private vehicles and switch to public transportation facilities. He further advised that farmers should be incentivised, so that they stop burning the crops which lead to decline to qir quality. On Friday, the National Green Tribunal (NGT) observed that the Delhi government, the central government and other officials have been apathetic to the rising air pollution level. (WION with inputs from agencies)

Delhi choking: Government calls emergency meeting over 'alarming' pollution levels