Consider the following statements regarding World Air Quality Report 2021 It measures the air qualit...........

Environment and Ecology Air Pollution

Consider the following statements regarding World Air Quality Report 2021

It measures the air quality levels based on the concentration of PM 2.5, PM 10, Ammonia, Lead, nitrogen oxides, sulphur dioxide, ozone, and carbon monoxide.
It is published by IQAir.
India was home to 11 of the 15 most polluted cities in Central and South Asia in 2021.

Select the correct statement.

1&2 only

2&3 only

1&3 only

All of the above

World Air Quality Report 2021 was published by IQAir, a Swiss group that measures air quality levels based on the concentration of PM 2.5.

Findings; New Delhi continues to be the world’s most polluted capital city for the fourth consecutive year.
India was home to 11 of the 15 most polluted cities in Central and South Asia in 2021. In 2021, Mumbai had recorded Particulate Matter (PM) 2.5 annual average of 46.4 microgram/cubic metre – nearly nine times above the WHO limit.
India’s Air Quality Index (AQI) has been developed for eight pollutants viz. PM2.5, PM10, Ammonia, Lead, nitrogen oxides, sulphur dioxide, ozone, and carbon monoxide.

Hence both statements 2&3 are correct.