Kolkata recorded a marginal decrease in air pollution level during 2024 compared to 2023, but still stands as the second most polluted metro city in the country after Delhi and within the 2 per cent ...

Air shade management and multi sectoral approach key to counter city’s air pollution with focus on transport and waste burning Pockets of the Kolkata showed pollution surges much above the national ...

Ballygunge had the highest pollution levels and the most number of bad air days. KOLKATA: Kolkata's air quality improved this winter with the average PM2.5 concentration dropping to 65 micrograms ...