Question
If conc. of in the atmosphere reaches ppb, what mass of would be present per kg of the air?
If conc. of in the atmosphere reaches ppb, what mass of would be present per kg of the air?
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Topics and outcomes this question is testing.
Describe the sources and understand the effects of air pollution, (This can include both natural and human-caused pollutants including O3, Pb, Hg, Polycyclic aromatic hydrocarbons, Persistent organic pollutants, Greenhouse gases (such as CO2, CH4 and N2O), CFCs and other ozone depleting substances, Volatile organic compounds, Heavy metals (such as Pb, Hg, and Cd).