Question

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

• A. carbon monoxide, suspended particulate matter
• B. carbon monoxide, nitrogen dioxide
• C. sulphur dioxide, suspended particulate matter
• D. carbon monoxide, sulphur dioxide

Hint:

SPM is the most dangerous air pollutant in metropolitan cities.

Answer 1

The Correct Option is A

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.