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News / Topic / Centre For Science And Environment

centre for science and environment

Ozone pollution this year highest since 2021 in Delhi: Report

Unlike primary pollutants (emitted directly from sources), ozone is formed through chemical reactions involving nitrogen oxides, volatile organic compounds, and carbon monoxide — pollutants released by vehicles, power plants, factories and other combustion sources. (ANI)

Published on Jun 18, 2025 05:12 AM IST

Delhi clocked three-year PM2.5 level high in 2024, reveals study

Thick winter fog in Delhi. (RAJ K RAJ /HT PHOTO)

Updated on Jan 07, 2025 05:20 AM IST

Peak winter pollution levels dipping: Report

Commuters out on a hazy morning in Noida on Wednesday. (Sunil Ghosh/HT PHOTO)

Updated on Nov 07, 2024 05:12 AM IST

Bengaluru ranks lowest among cities for clean air program spending: Report

The report shows Bengaluru used just 13 per cent of its National Clean Air Programme (NCAP) funds over the past four years. (Representative image)

Published on Jul 21, 2024 11:45 AM IST

Capital used only 29% of funds to clean air: Study

New Delhi was labelled the most polluted capital city in the world in 2023, according to data from Swiss firm IQAir. (HT Photo)

Updated on Jul 20, 2024 05:46 AM IST