National Air Quality Index (AQI)
Recently, NCR experienced “severe” levels of pollution on Air Quality Index. PM2.5 concentrations in New Delhi reached more than 1,200 micrograms per cubic meter, 48 times the guideline value established by the World Health Organization.
About AQI
- Air Quality Index is a tool for effective communication of air quality status to people in terms, which are easy to understand.
- It transforms complex air quality data of various pollutants into a single number (index value), nomenclature and colour.
- There are six AQI categories, namely Good, Satisfactory, Moderately polluted, Poor, Very Poor, and Severe.
- Each of these categories is decided based on ambient concentration ....
Do You Want to Read More?
Subscribe Now
Take Annual Subscription and get the following Advantage
The annual members of the Civil Services Chronicle can read the monthly content of the magazine as well as the Chronicle magazine archives.
Readers can study all the material before the last six months of the Civil Services Chronicle monthly issue in the form of Chronicle magazine archives.
Related Content
- 1 India’s Current Achievements in Renewable Energy
- 2 Heat Waves: Causes, Effects and Impacts
- 3 Developing Climate Resilience in Indian Cities
- 4 Plastic Pollution in Indian Himalayan Region
- 5 Dam Management and Water Security in India
- 6 Urban Floods: Causes and Challenges of Management
- 7 Climate Change-induced Disasters: India’s Preparedness & Challenges
- 8 Fragility of Himalayan Ecosystem: Challenges of Disaster Management
- 9 India’s Groundwater Resource: Issues and Management Challenges
- 10 Desertification and Drought Resilience: Key Imperatives

