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Not Delhi, but Varanasi and Muzaffarpur the most polluted cities in India
This is indeed a good news for the residents of the national capital.
New Delhi: This is indeed a good news for the residents of the national capital.
The air quality of Delhi took a refreshing turn as the pollution level improves to 'moderate' category.
According to a report in Times of India , Central Pollution Control Board's (CPCB) data for the September 2015-January 2016 period shows that Delhi's air is healthy and not India's most polluted city.
Further, reports suggests that in January, while air quality indices in Varanasi, UP and Muzaffarpur, Bihar had 'severe' values of 409, Delhi scored a 'very poor' with 362. Faridabad was worse with an AQI values of 399. Bengaluru, Haldia and Panchkula are the only three cities out that had moderate air quality during the period.
CPCB has published air quality indices (AQI) for 24 cities that help in comparing the pollution levels with a colour code and a numerical value.
In India, AQIs are determined based on the concentrations of seven pollutants, including PM2.5 (fine, respirable particles), sulphur dioxide (SO2), nitrogen dioxide (NO2) and carbon monoxide (CO).