Carbon monoxide and nitrogen oxides.
Smog is caused by pollutants in the air. The source is often emissions from industrial plants and vehicles.
Planes.
Which pollutants come from fields
Pollutants that come from septic tanks are microbes and metals. But it is not always a given.
the pollutants are metal and microbes
the pollutants are metal and microbes
cancer, asma, carbon dioxide intoxication.
The releases of gases from chimneys and vehicles cause pollution. It add pollutants to rain water.
Most of the pollutants in the ocean come from humans. This is because humans burn fossil fuels which release toxic gases into the atmosphere that then rain down in the ocean.
vehicles make up smog and ground level ozone. They are pollutants.
Carbon dioxide, Soxide, coxide.
CO2, Carbon particulate matter PM, (in the past Lead pollution). CO, NOx and unburnt hydrocarbons.