This problem is the air pollution caused by traffic is important, Carbon dioxide (CO2) Nitrogen oxide gas, hydrocarbon compounds Sulphur dioxide, as well as small particulates and lead compounds.
This problem is caused by air pollution, traffic is the key which will provide. Carbon monoxide Oxides of nitrogen gas Hydrocarbons Sulfur dioxide Including dust and lead.
This problem is the traffic air pollution is important, which will provide carbon monoxide gas oxide of nitrogen hydrocarbon compound. Sulfur dioxide, and particulate matter and lead.