Question

Photochemical smog can impact visibility and human health in large metropolitan areas. Primary air pollutants are converted to secondary air pollutants to form smog in these areas. Which chemical is most likely a primary air pollutant that contributes to smog?
Responses

A ozoneozone

B sulfatessulfates

C nitrogen oxidenitrogen oxide

D Peroxyacyl nitrates (PANs)

Answers

GPT-4o mini
C. nitrogen oxide

Nitrogen oxides (NOx) are primary air pollutants that result from combustion processes, and they play a significant role in the formation of photochemical smog by reacting with other pollutants in the presence of sunlight to produce secondary pollutants such as ozone and peroxyacyl nitrates (PANs).