The irritant red haze in traffic and congested palces is due to

Options

A. `CO_(2)`
B. `O_(3)`
C. `SO_(x)` ( oxides of sulphur)
D. `NO_(x)` ( oxides of nitrogen)

Answer

D

Explanation

The irritant red haze in traffic and congested place is due to the oxides of nitrogen. Nitrogen oxide has a deep red colour and poisonous gas.
When, it is mixed with aerosols, it causes reddish brown colour of haze in congested places.
Thus, option (d) is correct.