The unseasonal wet spell, while giving the people of Delhi an escape from the heat, had another bonus - bringing down pollution levels in the city ranked the world's worst polluted by the World Health Organization. A comparative analysis of the real-time ambient air quality data of the Delhi Pollution Control Committee showed a significant drop in the level of pollution. Online data recorded a level even lower than 60 microgramme/cubic metre (mcg/cu.m, ...
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