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Delhi's air quality 'poor', PM levels unsafe as pollution crisis continues

Air quality in Pune, Mumbai and Ahmedabad is in 'satisfactory' category, says state-run monitoring system.

Delhi air pollution
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Photo: ANI

BS Web team
Delhi's air quality remained in the ‘poor' category on Thursday, according to System of Air Quality and Weather Forecasting And Research (SAFAR). 

The Air Quality Index (AQI) was 252 as against 249 a day earlier, at 8 am. 

Readings below 50 are considered safe, while anything above 300 is considered hazardous or 'severe'. 

The AQI measures the concentration of poisonous particulate matter PM2.5, which can cause cardiovascular and respiratory diseases such as lung cancer, in a cubic metre of air. 

This morning, Delhi's levels of PM 2.5 and PM 10 were recorded at 106 in the 'poor' and 198 in

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