On Wednesday (December 24), the air quality index (AQI) stood at 273 in Noida and 259 in Greater Noida, both classified as ...
Delhi's average nitrogen dioxide (NOâ‚‚) levels have reached their highest since 2018, exceeding national and WHO standards.
Around one-third of Delhi’s annual PM2.5 pollution is made up of secondary ammonium sulfate, with its share rising sharply during the city’s worst pollution months, according to a new analysis by the ...