Aquatic Effects of Acidic Deposition

10.1201/9781420032802 ◽

2000 ◽

Cited By ~ 22

Author(s):

Timothy Sullivan

Keyword(s):

Acidic Deposition ◽

Aquatic Effects

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Aquatic effects of acidic deposition

Choice Reviews Online ◽

10.5860/choice.39-0953 ◽

2001 ◽

Vol 39 (02) ◽

pp. 39-0953-39-0953

Keyword(s):

Acidic Deposition ◽

Aquatic Effects

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Classifying Soils for Acidic Deposition Aquatic Effects: A Scheme for the Northeast USA

Soil Science Society of America Journal ◽

10.2136/sssaj1989.03615995005300040027x ◽

1989 ◽

Vol 53 (4) ◽

pp. 1153-1162 ◽

Cited By ~ 6

Author(s):

J. J. Lee ◽

D. A. Lammers ◽

D. L. Stevens ◽

K. W. Thornton ◽

K. A. Wheeler

Keyword(s):

Acidic Deposition ◽

Northeast Usa ◽

Aquatic Effects

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Assessing the Potential Extent of Damage to Inland Lakes in Eastern Canada due to Acidic Deposition. I. Development and Evaluation of a Simple "Site" Model

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f90-006 ◽

1990 ◽

Vol 47 (1) ◽

pp. 55-66 ◽

Cited By ~ 19

Author(s):

David R. Marmorek ◽

Michael L. Jones ◽

Charles K. Minns ◽

Floyd C. Elder

Keyword(s):

Large Scale ◽

Acidic Deposition ◽

Regional Scale ◽

Future Research ◽

Eastern Canada ◽

Lake Chemistry ◽

Site Model ◽

Sulphate Deposition ◽

Aquatic Effects ◽

Extent Of Damage

Large scale aquatic effects of acidic deposition have become a prominent environmental issue in North America and Europe. Models are required to assess the potential future impacts of current levels of acidic deposition, and the potential benefits of emission controls. This paper presents a model that uses measurements of current lake chemistry and assumptions about the processes governing acidification, to first estimate original (i.e. preacidification) lake chemistry and then predict the eventual chemistry expected given a specified level of acidic sulphate deposition. The model is deliberately kept simple, so that its input requirements are modest and thus can be met on a regional scale. When applied on a regional scale the model predicts the expected eventual distributions of alkalinity and pH. Application of the model is illustrated for a watershed in north-central Ontario, which includes the area immediately to the south and west of Sudbury. Model-based estimates of current alkalinity are very similar to observed alkalinities. The predicted eventual alkalinity distributions, given current levels of deposition, indicate a trend towards recovery, consistent with other observations in the Sudbury region. A sensitivity analysis of the model indicates that its outputs are highly sensitive to estimates of preacidification lake sulphate levels, and less so to assumptions about the catchment's ability to neutralize incoming acidity. Simple, regional models such as the one presented in this paper should play a more central role than they presently do both in assessment and in the definition of future research and monitoring needs.

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