Helth & tips, &; Technology tips: Quick, proactive:Why Beijing's Grap works, and Delhi's doesn't

Sunday, November 3, 2019

Quick, proactive:Why Beijing's Grap works, and Delhi's doesn't

Beijing’s four-tier emergency response plan kicks in based on air quality index (AQI) forecasts and not actual recorded concentrations.

from Hindustan Times - topnews https://ift.tt/2JLA6O2

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