Delhi-NCR's air quality improves slightly, but still "very poor"

School children wears an oxygen masks to raise awareness regarding the dangers of air pollution in New Delhi

School children wears an oxygen masks to raise awareness regarding the dangers of air pollution in New Delhi

The AQI level in the capital was recorded in the "severe" zone for seven days between November 7 and November 13.

On Thursday, Delhi and the region around it saw a "moderate" air quality with the Air Quality Index (AQI) at 194 in Delhi at 4 p.m.

Of the cities monitored, air quality of all except those in Uttar Pradesh improved on Wednesday in comparison to Tuesday. Both Delhi and Lucknow have been in the grip of "severe" and "very poor" air quality since November.

The haze did not disrupt the proceedings of the ongoing test match between India and Sri Lanka at the Feroz Shah Kotla, however, the Lankans wore N95 anti-pollution masks while fielding.

According to the Central Control Room for Air Quality Management of the CPCB, the concentration of nitrogen dioxide (NO2) breached the 24-hour safe limit of 80 micrograms per cubic metre (ug/m3) in areas such as R K Puram (139.27), Anand Vihar (104.27) and Dilshad Garden (85.20) in the evening. On Wednesday, he admitted that it was tough playing in pollution.

However, nine out of Central Pollution Control Board's (CPCB) 17 stations had "severe" quality. Some of the Sri Lankan players had fallen sick.

The United Nations marked the day as the first worldwide smog day.

The safe limit for PM2.5 according to global standards is 25 microgrammes per cubic meters and 60 units as per national standards. The air quality of Delhi improved by nearly 100 units with AQI 282 on Wednesday as compared to pollution levels on Tuesday when AQI was 378.

An AQI between 0-50 is considered good, 51-100 satisfactory, 101-200 moderate, 201-300 poor, 301-400 very poor, and 401-500 severe.

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