ENGR 202 Lecture Notes - Lecture 5: Benzene, National Ambient Air Quality Standards, Total Suspended Solids
5 Mar 2018
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Document Summary
6 priority pollutants standards set by naaqs national ambient air quality standards: pm particular matter (microscopic) (pm10 / pm2. 5) Total suspended solids, combustion creates particles. effects the respiratory system. Standard in canada is pm10, in usa in pm2. 5. This relates to size so the americans take into consideration smaller particles. Pm varies on how developed the country is, if country has no roads (asphalt) then there will be a lot more dust in the air. Has to be measured differently in different places: so2 sulphur dioxide. Sulphur is an impurity, but usually a natural ingredient. Biggest store of oil is in azerbaijan, but contains a high content of sulphur, therefore cannot be burnt as there are too many impurities. So2 joining together with nox will cause acid rain. Electric power plants cause a lot of so2: co carbon monoxide. Car will produce carbon dioxide mainly but will never fully burn all the fuel, so carbon monoxide is always produced.
