Chemical Engineering - Environmental Engineering - Discussion
Discussion Forum : Environmental Engineering - Section 1 (Q.No. 7)
7.
Tolerable limit of nitrogen oxides in air is __________ ppm.
Discussion:
3 comments Page 1 of 1.
Ashwini said:
4 years ago
Nitric oxide limit is 25 ppm. For nitrogen oxides, it is 5 ppm.
Jatoth umesh said:
1 decade ago
Nitrogen dioxide NO2 5 ppm.
Nitric oxide NO 25 ppm.
Nitric oxide NO 25 ppm.
(1)
Rakesh Solanki said:
4 years ago
C.5 ppm is right.
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