Summary:
A dip in pollution levels was recorded in other cities of UP which had earlier figured in the severely polluted category. According to the AQI data released by Central Pollution Control Board CPCB ), the pollution levels in Lucknow went down by 80 units but it remained under severely polluted category with AQI 404. LUCKNOW: The air quality of all cities in the country improved except those in Uttar Pradesh , where two cities remained 'severely' polluted on Wednesday.The state capital was the second-most polluted in the country, while Ghaziabad topped the list with the Air Quality Index (AQI) of 418. "According to CPCB, the concentration of PM2.5 in Lucknow was seven times higher than the permissible limit of 60 micrograms/cubic metre, set by the National Ambient Air Quality Standard. Both cities were more than 50 units more polluted than the national capital where AQI was 361..