Key Points
Delhi-NCR pollution: Delhi had the highest PM 2.5 levels in the country in the month of October in the last five years, according to a recent report..
The report, which is based on the analysis of air quality between 2019 and 2023, further said that while air pollution has increased in the country's four major cities, Delhi, Mumbai, Hyderabad and Kolkata..
The study analysed PM 2.5 concentrations between 2019 and 2023 in eight of India's major state capitals-- Delhi, Mumbai, Chennai, Kolkata, Bengaluru, Lucknow and Patna...
In October 2023, Central Pollution Control Board (CPCB) data showed Delhi's air quality in October was the worst since 2020..
In earlier years, PM 2.5 shot up between 2019 and 2020 (by 54.2 per cent), fell slightly in 2021 (by 3 per cent) and 2022 (by 0.9 per cent)," the report said.. Kolkata's PM 2.5 fell between 2019 and 2020 by 26.8 per cent, went up in 2021 by 51.7 per cent, decreased in 2022 by 33.1 per cent and rose again in 2023 by 40.2 per cent...
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