A type of water pollutant causes ""Which of the following is a primary air pollutant? a. Ozone b. PAN c. Carbon monoxide d. Smogblue baby syndrome."" a. Nitrate b. Phosphate c. Mercury d. Lead
Answer (1)
1. C. Carbon monoxidePrimary air pollutants are those emitted directly from a source.Carbon monoxide (CO) is a primary pollutant because it is directly emitted from combustion sources (vehicles, fires).Ozone and PAN are secondary pollutants, formed by reactions in the atmosphere."Smogblue baby syndrome" is not a pollutant. (Blue baby syndrome is a health effect from nitrate in water.)2. A. NitrateBlue baby syndrome (methemoglobinemia) is caused by nitrate contamination in drinking water, which affects oxygen transport in infants' blood.Phosphate causes eutrophication, mercury and lead are heavy metal pollutants but not linked to blue baby syndrome.
