A new study by the Indian Institue of the Tropical Meteorology (IITM) Pune has revealed that the fog formation over the Indo-Gangetic plains of north India is determined by the abnormal air circulation patterns in Arctic and Eurasia.

Air pressure in Arctic responsible for fog in Delhi: Study

Delhi, routinely suffering from air pollution accompanied by thick fog caused by vehicular exhaust and coal burning, witnessed yet another bad day on Friday. Owing to the low visibility, ten trains were delayed in the morning after the minimum temperature settled at 7 Degrees Celsius.

Delhi: Air quality worsens, fog disrupts air and rail traffic

Delhiites woke up to a cold morning with the minimum temperature settling at 7 degrees Celsius, two notches below normal. As many as 13 trains were running late due to fog, officials said.

Cold morning in Delhi, fog delays 13 trains

A cover of moderate fog enveloped the city with visibility reduced to 200 metres at Palam and 400 metres at Safdarjung, at 5.30am, said a Met department official.

Cold, foggy morning in Delhi; 14 trains delayed

All flights to and from the Delhi airport were delayed on Monday morning owing to dense fog. Delhi-NCR has been reeling under the effects of cold wave and chilling weather this season with temperatures dipping as low as 3 degrees last month.

All flights delayed due to fog at Delhi airport, over 10 trains running late 

At 5.30 am, visibility at Palam and Safdarjung was zero and 400 metres respectively. The visibility was 50 and 400 metres at Palam and Safdarjung respectively at 8.30 am.

Fog in Delhi delays 11 trains

Around 12 trains coming in and departing from Delhi were delayed while departures of all flights have been put on hold at Delhi airport due to bad weather and fog conditions since 7:30 in the morning.

Dense fog disrupts train, flight services in Delhi; pollution 'severe'

Cold weather continued to grip parts of north India on Sunday and a blanket of fog enveloped several areas of the region affecting road and rail traffic. In Delhi, the mercury once again dipped to 3.

Cold wave and fog continue to grip North India

The minimum temperature in Delhi was recorded at 12 degree Celsius and the maximum at 25 degrees Celsius

Fog in Delhi outskirts continues to affect train services

The Air Quality Index (AQI) in Delhi-NCR stands around 168-183

Delhi: 10 trains cancelled, 19 late due to low visibility

According to the Meteorological Department, the maximum temperature will be 27 degree Celsius, with lows of eight degrees. The lowest temperature recorded at the weather station in Delhi's Safdarjung was 7 degrees Celsius

Low temperature and dense fog continue to affect rail operations

The Meteorological Department has informed that the maximum temperature in Delhi would rise to 25, with lows of seven degrees.

New Delhi: 24 trains delayed, 18 cancelled delayed due to low visibility

Delhi recorded the season's lowest minimum temperature at 4.2 degrees Celsius

Cold wave tightens grip over north India

Low visibility in the national capital has left 20 flights delayed, six cancelled and 64 trains delayed, 24 rescheduled and 21 cancelled

Delhi fog continues; flights and trains delayed, cancelled

More than 40 flights were diverted and more than 90 flights were affected at the Delhi airport on Sunday

Flights in Delhi affected due to low visibility

Meanwhile, the air quality index of Lodhi Road was recorded in the 'poor' category, with Particulate Matter (PM) 2.5 at 290 and PM 10 at 276, thus depicting degrading air quality

30 trains delayed, 18 cancelled as fog engulfs Delhi

According to reports, most trains running on Amritsar/Ludhiana to New Delhi route were running late or had to be rescheduled.

WION morning news brief, December 23, 2017

Similar incidents were reported previously, one of the latest being that of?a collision that took place at the Noida expressway

Watch: 10 cars collide at Lucknow-Agra expressway, several injured

Mumbaikars wondered whether the weather was to blame or pollution

Dense fog hits Mumbai, Twitterati wonder why

The national capital woke up to moderate fog on Saturday morning with temperature recorded at 11? Celsius by 7:30 AM

Delhi: 25 trains running late, 6 cancelled due to fog

The four-fold hike in parking fees was also lifted

Delhi pollution: EPCA lifts construction ban, NGT to review Friday

Reports said snowfall had started around 3am on Wednesday morning.

Watch: Heavy snowfall in J&K's Sonamarg and Naranag

The silent killer envelopes the city like mother?s love covering all and sundry.

Delhi pollution: My city is killing me, softly

All those who have been injured were admitted to a government hospital nearby, with reports of at least one person being killed.

Watch: Two dozen vehicles collide due to fog in Haryana, several injured

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