Air Quality Index (AQI) is represented in 

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UGC NET Official Paper 1: Held On 13 June 2023 Shift 2
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  1. Unit of μg/m3 (microgram per meter cube) 
  2. Unit of ppm 
  3. Percentage (%) 
  4. Numbers 

Answer (Detailed Solution Below)

Option 4 : Numbers 
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UGC NET Paper 1: Held on 21st August 2024 Shift 1
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Air Quality Index (AQI) is represented in numbers.

Key Points

  • The Air Quality Index (AQI) is a measure of how polluted the air is. It is a number that ranges from 0 to 500, with 0 being the cleanest air and 500 being the most polluted air.
  • The AQI is based on the concentration of pollutants in the air, and it is calculated using a formula that takes into account the different types of pollutants.
  • The AQI is a useful tool for understanding how polluted the air is and for making decisions about whether or not to go outside.
  • The AQI is also used by government agencies to regulate air pollution.
  • The AQI is not represented in units of μg/m3 (microgram per meter cube) or ppm (parts per million). These units are used to measure the concentration of pollutants in the air, but they are not used to calculate the AQI.

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Therefore, the answer is numbers.

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