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Environmental Studies - Air Quality Index (AQI) — Environmental Studies Questions & Practice

Practise 501 Environmental Studies - Air Quality Index (AQI) questions from Environmental Studies for competitive exams such as UPSC, Banking, SSC and Railway. Read the worked questions below, check every answer with an explanation, and track what you get wrong.

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Practice questions on Environmental Studies - Air Quality Index (AQI) — with answers

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1. As per India's National Air Quality Index (AQI) scale issued by the CPCB, an AQI value of 354 falls under which category?

  1. AVery Poor
  2. BSevere
  3. CSatisfactory
  4. DModerate
Show answer

Answer: A

On the CPCB National AQI scale, a value of 354 falls in the range 301-400, which corresponds to the 'Very Poor' category.

2. As per India's National Air Quality Index (AQI) scale issued by the CPCB, an AQI value of 296 falls under which category?

  1. APoor
  2. BSevere
  3. CModerate
  4. DVery Poor
Show answer

Answer: A

On the CPCB National AQI scale, a value of 296 falls in the range 201-300, which corresponds to the 'Poor' category.

3. As per India's National Air Quality Index (AQI) scale issued by the CPCB, an AQI value of 76 falls under which category?

  1. ASatisfactory
  2. BVery Poor
  3. CGood
  4. DModerate
Show answer

Answer: A

On the CPCB National AQI scale, a value of 76 falls in the range 51-100, which corresponds to the 'Satisfactory' category.

4. As per India's National Air Quality Index (AQI) scale issued by the CPCB, an AQI value of 436 falls under which category?

  1. ASevere
  2. BSatisfactory
  3. CVery Poor
  4. DModerate
Show answer

Answer: A

On the CPCB National AQI scale, a value of 436 falls in the range 401-500, which corresponds to the 'Severe' category.

5. As per India's National Air Quality Index (AQI) scale issued by the CPCB, an AQI value of 141 falls under which category?

  1. AModerate
  2. BGood
  3. CVery Poor
  4. DSevere
Show answer

Answer: A

On the CPCB National AQI scale, a value of 141 falls in the range 101-200, which corresponds to the 'Moderate' category.

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