Abstract
The sulphur dioxide and nitrogen oxides emissions from all sources in Alberta, Canada, during 1982 amounted to 488,297 and 353,511 tonnes, respectively. During this year deposition of wet sulphate from all stations in the province, 8 kg ha−1 yr−1, compares well with the five-year average (1978–1982) value of 10 kg ha−1 yr−1. These measurements are about one-half of the wet sulphate deposition criteria of 20 kg ha−1 yr−1 established for protecting the moderately sensitive aquatic ecosystem in eastern Canada. Due to dry, cold, continental climate conditions of Alberta, dry sulphate or sulphur deposition is equally or more important than wet deposition. No effects of the long-range transport of atmospheric pollutants (LRTAP) on the ecosystems in Alberta have been observed to date. Atmospheric deposition target loadings of SO4 −2, NO3 −, and H+ for Alberta and western Canadian environmental conditions should be developed to protect the highly sensitive ecosystems. Some future research and monitoring priorities for Alberta and western Canada are outlined.
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Sandhu, H.S., Blower, L. Acid-forming emissions in Alberta, Canada. Environmental Management 10, 689–695 (1986). https://doi.org/10.1007/BF01866773
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DOI: https://doi.org/10.1007/BF01866773