LUCKNOW, Nov. 4 -- Lucknow has recorded a rise in particulate matter levels, with construction activity, road digging and dust resuspension contributing to the deterioration. A CSIR-Indian Institute of Toxicology Research (IITR) assessment of nine locations found that both PM10 and PM2.5 concentrations exceeded national permissible limits across all monitoring sites during post-monsoon 2026, with Amausi emerging as the city's most polluted location.

The 24-hour average concentrations of PM10 and PM2.5 exceeded the National Ambient Air Quality Standards (NAAQS) limits of 100 and 60 micrograms per cubic metre, respectively, at all nine locations.

Amausi recorded the highest pollution levels, with average PM10 and PM2.5 concentrations of 1...