On Wednesday morning, Delhi, Baghpat, Ambala, Faridabad, Ghaziabad, Gurugram, Karnal, Kurukshetra, etc; which had recorded ‘very poor’ air on Tuesday, showed a marginal improvement and graduated to ‘poor’ category, despite raging stubble burning in Punjab
source https://www.hindustantimes.com/india-news/air-quality-improves-marginally-in-nw-india-shifts-to-poor-category/story-ZPFBJmiOPXfwsffr14xwtN.html
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