LUCKNOW, June 4 -- Though the city has observed better ambient air quality this year as compared to the previous year's pre-monsoon report, it continued to be above the permissible limits of NAAQS despite implementing air pollution control measures in the city such as enforcement of BS-VI compliant vehicles, and promotion of CNG and e-vehicles.

This was highlighted in the 'Assessment of Ambient Air Quality of Lucknow City Pre-Monsoon 2025' report released by the Council of Scientific and Industrial Research-Indian Institute of Toxicology Research (CSIR-IITR) on Wednesday.

The particulate matter (PM) concentrations were observed from pre-monsoon 2024 to pre-monsoon 2025. The PM10 concentrations decreased by 9.8%, 14.6%, and 4.9% while PM...