Air Pollution MCQs

What is the primary standard level for carbon monoxide for assuring air quality?

December 29, 2021

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What is the primary standard level for carbon monoxide for assuring air quality?

Q. What is the primary standard level for carbon monoxide for assuring air quality?

10ppm
90ppm
1ppm
9ppm

Answer: 9ppm

What is the primary standard level for carbon monoxide for assuring air quality?

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