Question
Which city is the second most polluted city out of the 50 most polluted cities in the world in 2020 by a report prepared by British company HouseFresh?
Answer: Option A
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Uttar Pradesh's Ghaziabad was adjudged the second most polluted city out of the 50 'most polluted cities' in the world in 2020 by a report prepared by British company HouseFresh. Ghaziabad reported an average Air Quality Index (AQI) of 2.5 particulate matter (PM) in 106.6 mic.g/m3.
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