ENVIRONMENT

With dip in pollution levels, Delhi air quality improves to ‘moderate’ category

The pollution has gone down drastically in the national capital thanks to gusty winds and rains under the influence of Western Disturbance. The air quality in Delhi improved from ‘poor’ to ‘moderate’ category on Wednesday with Air Quality Index (AQI) touching 132, according to the latest estimates updated by System of Air Quality and Weather Forecasting And Research (SAFAR). PM2.5 has now become the lead pollutant instead of PM10 as a characteristic of wintertime.

‘Moderate’ air in Delhi

According to SAFAR estimates updated at 6.30 am, most of the areas in the national capital including Pusa Road, Lodhi Road, IIT-Delhi, Indira Gandhi International Airport (Terminal-3) and Ayanagar recorded air quality in the ‘poor’ category with an AQI of 111, 121, 135, 139, 173 and 156 respectively. While Delhi University recorded the clean air with an AQI of 97.

However, according to SAFAR, the significant improvement in Delhi air quality is short-lived. The AQI is likely to marginally deteriorate and in moderate to the poor category is forecast for Wednesday. AQI is forecast to further deteriorate to the higher end of poor to lower end of very poor category on 19th and 20th November.

According to SAFAR, AQI between the range of 51 and 100 is considered as ‘satisfactory’ or ‘very good’, 101-200 is ‘moderate’, 201-300 falls under the category of ‘poor’. While 300-400 is considered as ‘very poor’, levels between 401-500 fall under the ‘hazardous’ category.

Source
Times Now
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