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Which City overtakes Delhi as most polluted city in India?
A)
Chennai
B)
Kolkata
C)
Mumbai
D)
Ahmedabad

Correct Answer :   Mumbai


Mumbai has overtaken Delhi to become the world’s second-most polluted city in terms of the global Air Quality Index (AQI).

* According to Switzerland-based air quality monitoring tech company IqAir, Sarajevo in Bosnia has been ranked as the world's most polluted city for the period between January 29 and February 8, 2023.  

* As per the AQI data on the IqAir website, Mumbai has an AQI of 163, which falls under the unhealthy category.

* Lahore is in the third position. Delhi is in the sixth spot with 155 US AQI, while Kolkata is in the 17th position with a US AQI of 135.

* As per past records of IqAir, Mumbai at the 10th position on the most polluted list on January 29.

* It rose to the top on 2nd February 2023, following which the air quality improved marginally around February 8, 2023.

* But on 13th February 2023, it surpassed Delhi to become the second most polluted city in the world for air quality.

* IQAir has joined hands with United Nations Environment Programme (UNEP) and Greenpeace to measure the air quality in India. Its studies are based on data from the Central Pollution Control Board (CPCB).  

Why Mumbai’s air quality is falling :

During the peak winter months of November to January in 2022-23, air quality in India’s financial hub, Mumbai, has noticeably fallen due to various factors.

Experts have blamed the dust due to roads and construction activities and smoke from vehicles for the high pollution levels in Mumbai.

A 2020 study by NEERI and IIT-B has stated that road or construction dust is the main source of air pollution in Mumbai as there is a heavy concentration (about 71 per cent) of the particulate matter in Mumbai's air. The remaining comes from industrial and power units, airports, and garbage dumps..

Source : Business Today

V V Ramana Reddy, Published On : February 16, 2023
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