Assessing the immediate impact of COVID-19 lockdown on the air quality of Kolkata and Howrah, West Bengal, India.

Environ Dev Sustain · 2021 · PMC7508246 · PMID 32982575

Europe PMC DOI

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moderately significantno p-value reported

A moderately significant correlation ( r = 0.54*) has been found between SO 2 and ozone.

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