Monday, 16 August 2021
India to recalibrate air quality standards next year
India is likely to have new national ambient air quality standards (NAAQS) in 2022, factoring in more pollutants, including ultra-fine particulate matter of less than PM2.5. The existing national standard was formulated 12 years ago. Via Times of India https://ift.tt/2hJjhqE
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