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  9. Q90

OPSC OCS 2023 · Question 90 of 97

National Air Quality Index (AQI) is launched by the government to monitor the quality of air in major urban centres across the country on a real-time basis and enhancing public awareness for taking mitigative action. In this context, consider the following statements: (1) AQI will have 'one number, one colour and one description to inform the public about air quality in a simple and easily understandable format (2) There are six AQI categories, namely: good, satisfactory. moderately polluted, poor, very poor and severe (3) The index considers eight pollutants PM10, PM2.5, NO, SO,, CO, O,, NH, and Pb Which of the statements given above are correct?

Environment

  1. A2 and 3 only
  2. B1 and 3 only
  3. C1 and 2 only
  4. D1, 2 and 3Correct

Answer: D. 1, 2 and 3

Explanation

AQI is ‘One Number- One Colour-One Description’ for the common man to judge the air quality within his vicinity. There are six AQI categories, namely Good, Satisfactory, Moderately polluted, Poor, Very Poor, and Severe.

Source: OPSC OCS Prelims 2023 GS Paper-I; answers per Apti Plus unofficial key

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