Kolkata second in the list of most polluted cities in terms of PM2.5


A recent study of air pollution levels might not bring much joy to the citizens of the city. According to the State of Global Air (SOGA) 2022 report, published by the US-based Health Effects Institute (HEI), highlights two of the most harmful pollutants, fine particulate matter (PM2.5) and carbon dioxide. nitrogen (NO2).

He pointed out that among the top 20 cities that reported high increase in PM2.5 from 2010 to 2019, India has 18 and Kolkata ranks eighth in the list of most populous cities with PM2.5 diseases. PM2.5 highest.

For this, data available from satellites and ground-based monitoring were used to derive an analysis. The US-based institute’s report highlights that the City of Joy ranks eighth in the “PM 2.5 mortality rate” ~ the number of deaths per 1 lakh population.

According to the study, Kolkata reported 99 deaths per 1 lakh population in 2019, which could be attributed to PM 2.5 pollution. He also pointed out that PM 2.5 exposure was responsible for 21,380 deaths in Kolkata in 2019. Kolkata ranked second in the list of most polluted cities in the world.

The report from the health organization reveals that Kolkata has an annual average of 84 g/m3 PM2.5 concentration in the air, which is 17 times the WHO recommendation of 5 g/m3. The report entitled Air Quality and Health in Cities.

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