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Peak Hour Pollution
April 1 , 2020
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- In Indian big cities, the peak hour pollution in the morning and evening flattened due to the lock down.
- It has brought down particulate matter of sizes less than 2.5 microns greatly.
- According to the Central Pollution Control Board, around 92 cities in the country have recorded pollution level of “Good” from “Satisfactory”.
Air Quality Index
- The pollution levels is categorized as Good when the AQI is between 0 and 50.
- The other categories are poor (201-300), very poor (301-400) and severe (401-500).
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