New research shows that air pollution in Kolkata becomes highly toxic when PM2.5 levels cross 70 µg/m³, urging stronger ...

Kolkata's air, especially in Baliagunge, has alarming levels of nitrogen dioxide. This poses serious health risks, including respiratory and cardiovascular problems. Learn about the causes and ...

Letter to state's principal secretary said, 'necessary modifications may be made in the pollution under control certificate ...

The findings are both alarming and informative. The study demonstrated a non-linear relationship between PM2.5 concentration and its oxidative toxicity.

Kolkata: The city ranked fifth among 23 Indian state capitals in terms of PM2.5 concentration in March 2025 despite meeting ...

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 ...