Winterpollution in the eastern states of India: Overview of the winter air quality crisis

March 23, 2024

As the winter comes to an end, the Urban Lab at Centre for Science and Environment (CSE) analyses the air quality trends in the states of eastern India -- Bihar, West Bengal, Odisha and Jharkhand.

With the winter season coming to an end, the Urban Lab at Centre for Science and Environment (CSE) has analysed air quality trends during the winter months (October to February) in cities of eastern states of West Bengal, Bihar, Odisha and Jharkhand. This is an assessment seasonal trends in PM2.5 concentration for the period 1 October to 28 February for 2019, 2020, 2021, 2022 and 2023. Winter inversion, cool and calm conditions trap local pollution that is already high. This is part of the third edition of Urban Lab’s Air Quality Tracker Initiative since 2020-21.