Abstract
Various measurements utilizing soils, plants, precipitation and free water surfaces indicate that approximately 7 to 9 kg ha−1 of sulphate S was deposited annually within an area of 4600 km2. This area contained or had adjacent to its boundaries 10 S emission sources for which the provincial government had established a combined allowable daily emission of approximately 330 tonne S.
At distances of 40 or more km from the emission sources the annual deposition rate had declined to4 to 6 kg ha−1.
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Walker, D.R., Dick, A.C. & Nyborg, M. Deposition of sulphur gases from multiple scattered sources in Alberta. Water Air Soil Pollut 16, 223–231 (1981). https://doi.org/10.1007/BF01046856
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DOI: https://doi.org/10.1007/BF01046856