CSE analysis finds Delhi-NCR winter pollution levels down in October-November
The first phase of this year’s winter in the Delhi-national capital region (NCR) has shown early signs of improvement in air quality, according to Delhi-based non-profit the Centre for Science and Environment. A relatively cleaner Diwali this year gave the pollution-laden national capital a much-needed breather. The average levels of fine particulate matter (PM) went down to 142 microgrammes per cubic metre (µg/m3) for October and November. This is the lowest level recorded since the city installed these stations in 2018, the non-profit noted. Delhi recorded five good air days, thanks to the heavy rainfall in October this year. This number is the highest in the last five years. A good air day is when the PM2.5 levels are less than 30 µg/m3. Last year, there was one good air day, while no good air days were recorded in the winters of 2018, 2019 and 2020. Read more: Will PM 2.5 levels in Delhi-NCR go back to pre-pandemic levels this winter? Anumita Roychowdhury, executive director, research and advocacy, CSE said:
