Sunday, March 1, 2020

Air Quality Index

Q. What is Air Quality Index ?
     The problem of air pollution has become a new challenge for the world. The air quality is measured by the Air Quality Index.
Air pollution means the amount of Sulfur Dioxide (SO2), Nitrogen Dioxide (NO2), and Carbon Monoxide (CO) in the air exceeds the criteria set by the World Health Organization (WHO).
India uses the National Air Quality Index (AQI), Canada uses the Air Quality Health Index, Singapore uses the Air Pollution Control index.
The National Air Quality Index (AQI) in India was launched on 17 September 2014 in New Delhi under the 'Swachh Bharat Abhiyan' by the Environment Minister Shri Prakash Javadekar. The air quality is composed of 8 pollutants - PM10, PM2.5, NO2, SO2, CO O3, NH3 and Pb.
The Air Quality Index measures the quality of air. It shows the amount and types of gases dissolved in the air. There are 6 categories, based on air quality.

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