Question

What us value of nitrogen oxide

Answer 1

Answer:

Nitrogen dioxide and nitric oxide are referred to together as oxides of nitrogen (NOx). NOx gases react to form smog and acid rain as well as being central to the formation of fine particles (PM) and ground level ozone, both of which are associated with adverse health effects..

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Answer 2

Answer:

200ug/m3

Explanation:

national environmental standard for nitrogen dioxide is 200ug/m3 as per the hour average