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WHO revises air quality norms, experts wary

BUY-SELL | HELP WANTED | MATRIMONIAL

Vibha Sharma

Tribune News Service

New Delhi, September 22

The harmful health effects of air pollution kick in at lower levels than previously thought, the WHO today said as it revised its global air quality guidelines, recommending more stringent standards for key pollutants.

It has set new standards in the first update of its air quality guidelines since 2005. The PM 2.5 norms for 24 hours average is now 15 micro;g/m3 instead of 25 micro;g/m3 (in 2005) and 5 micro;g/m3 annual instead of 10 micro;g/m3 (in 2005).

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Even at the current relaxed standard, at 40 ug/m3 for annual PM 2.5 averages in India versus WHO’s 2005 annual limit of 10 ug/m3, most Indian cities fail to meet even those levels, says Prof SN Tripathi, Steering Committee Member, National Clean Air Programme (NCAP), calling for revising India’s air quality standards to make them more stringent.

According to Prof Tripathi, there is scientific evidence to prove that air pollution is leading to severe health impacts and 90 per cent of the entire global population is breathing polluted air.

Dr Ravindra Khaiwal of the Environment Health Department, PGI, Chandigarh, says the stringent standards will bring the focus on strict and swift action for better air quality. “Meeting the new guidelines seems a challenge, but under NCAP, India is committed to minimise 20-30 per cent of cities’ air pollution,” he said.

Bio-decomposer to check stubble-burning

The govt said bio-decomposer will be used on 6 lakh acres in UP, 1 lakh acres in Haryana and 7,413 acres in Punjab
The move is part of the action plan for prevention and control of stubble burning in Delhi-NCR region

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