June 05, 2020 12:08 am | Updated 12:08 am IST - CHENNAI
A Tamil Nadu Pollution Control Board study found that air quality improved in the city during the three lockdowns.
The city had more good air days during lockdown 2.0 than during lockdown 1.0 and this improved during lockdown 3.0, which recorded 92.9% days of good air quality.
A comparison of the AQI for the month of April for the last three years revealed that the average values were 56.6, 60.7 and 33.0, respectively, a press release said.
Comments have to be in English, and in full sentences. They cannot be abusive or personal. Please abide by our community guidelines for posting your comments.
We have migrated to a new commenting platform. If you are already a registered user of The Hindu and logged in, you may continue to engage with our articles. If you do not have an account please register and login to post comments. Users can access their older comments by logging into their accounts on Vuukle.
