The air quality in Delhi on Thursday touched the "severe" category - or emergency levels under Graded Response Action Plan (GRAP) - after both PM2.5 and PM10 crossed the limit of 300 and 500 micrograms per cubic metre (g/m3), respectively, at midnight.
from Delhi News: Latest Delhi News Headlines & Live Updates from Delhi - Times of India https://timesofindia.indiatimes.com/city/delhi/delhi-breathes-fire-as-aqi-hits-severe/articleshow/79072471.cms
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