Consider four common air pollutants found in urban environments NO, SO2, Soot and O3. Among these which one is the secondary air pollutant?

Question

Consider four common air pollutants found in urban environments NO, SO2, Soot and O3. Among these which one is the secondary air pollutant?

O₃
NO
SO₂
Soot

LohaHridoy

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2025-01-04 04:42

1 Answers

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AhmedNazir · Accepted Answer · 2022-09-04T04:29:57+06:00

Option 1 : O3

Explanation:

Primary Pollutants

Secondary Pollutants

Carbon monoxide (CO)

Oxides of nitrogen (NO_x, NO)

Sulfur oxides (SO_x)

Volatile organic compounds (VOCs) highly

Particulate matter (dust, ash, salt particles)

Ozone

PAN

Smog

Formaldehyde

Sulphuric Acid

Note:
Soot is a general term that refers to impure carbon particles resulting from the incomplete combustion of hydrocarbons.

Soot, as an airborne contaminant in the environment, has many different sources but they are all the result of some form of pyrolysis.