Day: September 23, 2021

The revised WHO standard for particulate matter (PM) 2.5 is now eight times more stringent than the national guideline, indicating a daunting task ahead for policy makers and pollution monitors. A recent study found the PM 2.5 level may have acted as a catalyst in intensifying Covid infections in some wards.   Mumbai’s average concentration …

Mumbai’s PM 2.5 levels 8 times higher than new WHO norms Read More »

Aiming to save people from the ill-effects of air pollution, the World Health Organisation (WHO) Wednesday released its revised air quality guidelines for six key pollutants, including extremely hazardous particulate matters — PM2.5 and PM10 — making them more stringent compared with the earlier standards set in 2005. India is currently working on revising its air …

WHO says air pollution kills 7 million/year, toughens guidelines Read More »