Kolkata residents breathe in air which has 3-5 times higher pollution levels than the ambient level that is already several times higher than the permissible limit. Action must gather momentum, says CSE's Kolkata study
Kolkata is in the grip of rising air pollution and multi-pollutant crisis. Official ambient air quality monitoring has shown 61 per cent increase in particulate matter in just four years (2010 to 2013). The levels exceed standards by 2.7 times. NO2 levels exceed by close to two times