What is Air Quality Index and how is it calculated?

Spread the love
  •  
  •  
  •  
  •  
  •  
  •  

The problem of air pollution has become a new challenge for the world. The air quality deteriorates throughout India in October and November months every year. The air quality is measured by the Air Quality Index. Let’s know what is the Air Quality Index (AQI) in India?

Air Quality Index

Air quality indices have been created in different countries for the measurement of air quality. These indices measure the air quality in the country and indicate whether the amount of nitrogen dioxide, carbon monoxide and sulfur dioxide in the air exceeds the criteria set by the World Health Organization or not.

India uses the National Air Quality Index (AQI), Canada uses the Air Quality Health Index, Singapore uses the Pollutant Standards Index and Malaysia uses the Air Pollution Index.

What is Air Quality 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 AQI is composed of 8 pollutants ((PM10, PM2.5, NO2, SO2, CO, O3, NH3, and Pb).

The AQIAQI measures the quality of air. It shows the amount and types of gases dissolved in the air. There are 6 categories of the air have been created in this air quality index. These categories are based on air quality. These categories are; good, satisfactory, moderate, poor, very poor and severe.

As the air quality deteriorates, so does the ranking of air from good to bad then very poor to severe.

According to the Berkeley Earth science research group; breathing in air with a PM2.5 content of between 950 to 1,000 is like smoking 44 cigarettes a day , they cause difficulty in breathing, irritation in the eyes, etc.

What does this Quality Index Show?

    AQIAssociated Health Impacts
Good (0–50)Minimal Impact
Satisfactory (51–100)May cause minor breathing discomfort to sensitive people.
Moderately polluted (101–200)May cause breathing discomfort to people with lung disease such as asthma, and discomfort to people with heart disease, children and older adults.
Poor (201–300)May cause breathing discomfort to people on prolonged inhaling, and problems to people with heart disease.
Very Poor (301–400)May cause respiratory illness to the people on prolonged inhaling. Effect may be more severe in people who are living with lung and heart diseases.
Severe (401-500)May cause respiratory impact even on healthy people, and serious health impacts on people with lung/heart disease. The health impacts may be experienced even during normal walk also

Spread the love
  •  
  •  
  •  
  •  
  •  
  •  

Leave a Comment