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://ift.tt/2GxMxid
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