Abstract
M. Sheena Symington discussed air pollutant concentrations in Canada over the period 1974–1994. The national average annual mean airborne concentration of lead (Pb) has been reduced from 0.69 µg/m3 in 1974 to 0.01 .µg/m3 in 1994. Total suspended particle concentrations have decreased from 78 to 34 µg/m3 over this same period, while sulfur dioxide (SO2) concentrations have been reduced from 13 ppb to 5 ppb. This reduction in SO2 has been accompanied by a dramatic decrease in cations such as magnesium, calcium, and potassium (Mg, Ca, and K) which has reduced the neutralizing capacities of ecosystems.
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© 1998 Springer Science+Business Media Dordrecht
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Davidson, C.I., Willson, J.C. (1998). Air Pollution Around the World. In: Linkov, I., Wilson, R. (eds) Air Pollution in the Ural Mountains. NATO ASI Series, vol 40. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-5208-2_39
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DOI: https://doi.org/10.1007/978-94-011-5208-2_39
Publisher Name: Springer, Dordrecht
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