
Delhi-NCR once again implemented Stage IV of the Graded Response Action Plan (GRAP) on Monday, December 16, after the air quality in the national capital declined rapidly amid the cold wave andthe city breached the 400 mark on the Air Quality Index.
This comes hours after theCommission for Air Quality Management (CAQM) imposed GRAP Stage-III when the AQI in Delhi was recorded at around 300.
Earlier, the GRAP Stage-III and IV restrictions were revoked in the national capital on December 5 after the air quality improved in the region. However, the AQI levels dipped once again in Delhi, prompting the centre’s air quality panel to re-invoke Stage IV of GRAP. It includes restrictions on vehicles with high emissions, minimising vehicular congestion by authorities, a ban on non-essential construction and demolition activities, and ordering hybrid mode for classes up to the primary.
The deteriorating air quality in Delhi is a recurring issue in winter from November to January. Due to low temperatures, high humidity, and reduced winds during these months, the pollutants get trapped in the atmosphere closer to the ground, making the situation worse for the residents and impacting their health.
GRAP-IVare the measures implemented in Delhi-NCR amid the rising air pollution crisis. These guidelines are aimed at controlling the air pollution. The GRAP is divided into four stages, depending on the air quality prevailing in the city.
What is allowed under GRAP-IV?
(With inputs from agencies)