Question:

The monitoring stations, established by NEERI, have reported that Kolkata and New Delhi have highest ______________ and ______________ in air respectively.

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SPM is the most dangerous air pollutant in metropolitan cities.
Updated On: Mar 6, 2026
  • carbon monoxide, suspended particulate matter
  • carbon monoxide, nitrogen dioxide
  • sulphur dioxide, suspended particulate matter
  • carbon monoxide, sulphur dioxide
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The Correct Option is A

Solution and Explanation

Step 1: Role of NEERI.
NEERI (National Environmental Engineering Research Institute) monitors air quality in major Indian cities.
Step 2: Pollution profile of Kolkata.
Kolkata shows high levels of carbon monoxide due to vehicular emissions and incomplete combustion of fuels.
Step 3: Pollution profile of New Delhi.
New Delhi has very high suspended particulate matter due to dust, construction activities, and vehicular pollution.
Step 4: Conclusion.
Thus, Kolkata has highest carbon monoxide, while New Delhi has highest suspended particulate matter.
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