2016
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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6
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15
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9
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12
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Detailed explanation-1: -5 concentrations as per a survey released by the Health Effects Institute’s (HEI) State of Global Air Initiative. Another Indian city, Kolkata in West Bengal ranked second in the list of most polluted cities in the world.
Detailed explanation-2: -Ghaziabad (217.57 micrograms per cubic metre) was the most polluted non-attainment city in the country in terms of PM10 levels, while Faridabad (215.39 micrograms per cubic metre) ranked second and Delhi (213.23 micrograms per cubic metre) stood third. In 2021, Ghaziabad was the most polluted with respect to PM2.
Detailed explanation-3: -Delhi has been ranked the most polluted city in the world as per a global analysis of air quality. The report, Air Quality and Health in Cities, released by US-based Health Effects Institute on Wednesday, analyses pollution and global health effects for more than 7, 000 cities around the world.
Detailed explanation-4: -Readings below 50 are considered safe, 51 and 100 are “satisfactory” and anything above 300 is considered hazardous or “severe". On Friday, Delhi was the world’s second most polluted city worldwide, with an AQI of 198, according to IQAir.