Air quality and Health
Dr. Farman Khan
Air quality and Health
With the recent AQI of Indian cities like Delhi and Lucknow. It's posing to be a major problem for every citizen.
The "WHO Air quality guidelines" provide an assessment of health effects of air pollution and thresholds for health-harmful pollution levels.

http://www.who.int/mediacentre/factsheets/fs313/en/
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