Delhi's air quality remains 'severe' for 4th consecutive day

Mindy Sparks
December 26, 2018

"The wind speed and ventilation index are highly unfavourable for dispersion of pollutants", it said.

The Supreme Court-appointed Environment Pollution Control Authority (EPCA) on Monday imposed a three-day ban on industrial activities in pollution hotspots and construction work across Delhi-NCR in view of the national capital's "severe" air quality.

Delhi is ranked among the world's worst cities in air quality, after years of breakneck growth in auto sales and coal-fired power generation.

According to the Indian Institute of Tropical Meteorology (IITM), the air quality is likely to improve as weather conditions like the wind speed and the ventilation index are marginally favourable for dispersion of pollutants.

The overall PM2.5 level (fine particulate matter in the air with a diameter of less than 2.5 micrometre) was recorded at 271 and the PM10 level at 422 here, the CPCB said. The major pollutants PM 2.5 were recorded at 338 and PM 10 at 258 (very poor category) in the RK Puram area.

According to SAFAR, the Air Quality Index (AQI) of the national capital was 423 - in the hazardous zone - as the minimum temperature was recorded at 5.6 degrees Celsius, two notches below the season's average.

Delhi's air quality improved slightly on Wednesday, climbing from "severe" category to "very poor" category after the Capital was forced to celebrate Christmas choking on Tuesday. An index value higher than 400 is categorised "severe".


The EPCA directed the traffic police to deploy special teams and ensure congestion-free traffic flow particularly in identified high traffic corridors.

Agencies have been also asked to intensify ground actions and make all efforts to control polluting activities, particularly waste burning.

Guleria asked people to avoid visiting most polluted areas and taking preventive measures.

Delhi, along with other metropolitan states, has been reeling under bouts of pollution for the last couple of days as the notoriously sub-standard air quality has become even more pernicious.

Speaking to the media, he said the Delhi government was doing its part, but everyone should contribute to reducing the air pollution.

Experts advised against all physical activities outdoors and prescribed the use of N-95 or P-100 respirators when stepping out. "The AQI will go back to the very poor category by tonight for next three days", it said, as reported by PTI.

Vertical mixing in the room that is available for pollutants to disperse.

Other reports by Iphone Fresh

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