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Air pollution in Bengaluru: PM2.5 above limit in 9 of 16 stations

Bengaluru does not figure in the World Health Organisation’s (WHO) list of 14 cities most affected by air pollution but air quality in the city is showing a declining trend. Nine out of 16 air quality monitoring stations across Bengaluru have recorded particulate matter (PM2.5) in excess of the National Ambient Air Quality Standards. Some of these areas are industrial hubs such as Yelahanka, Peenya and Whitefield, located on the outskirts of the city.

In its recent report on air pollution affecting Indian cities, WHO has analysed data compiled by Karnataka State Pollution Control Board for 2016-17. The report says the PM2.5 values exceed the National Ambient Air Quality Standards at nine locations by 3% to 48% and attributes this to the increase in vehicular traffic and construction activities.


As per the standard, annual PM 2.5 value should be within 40 microgram per cubic metre. In Bengaluru, PM2.5 presence in areas surrounding only four stations is within the prescribed limit: at Kajisonnenahalli after Whitefield; KR Circle; Victoria Hospital and areas surrounding Indira Gandhi Institute of Child Health near Siddapura in Jayanagar.

Of the Continuous Online Ambient Air Quality Monitoring Stations in nine areas which recorded PM2.5 presence in excess of the national standards, Central Silk Board Junction on Hosur Road was the worst, showing 48% more PM2.5 than the safe limit. ITPB park in Whitefield and Domlur showed a 38% departure, while it was 35% in KHB industrial area.
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