By Timothy J Sullivan
"While now not an everyday information merchandise, acidic deposition remains to be a common factor for environmental managers and coverage makers. Emissions of sulfur and nitrogen from strength crops, business amenities, and motorized vehicles - significant explanations of acidic deposition - nonetheless pour into the ambience each day. Aquatic results of Acidic Deposition summarizes and synthesizes significant developments in medical research, highlighting issues without delay suitable to coverage making."--BOOK JACKET. Read more...
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Extra info for Aquatic effects of acidic deposition
1). Biological effects on 20 Aquatic Effects of Acidic Deposition fish are better understood than are effects on other aquatic life forms, but it is clear that virtually the entire aquatic ecosystem is affected when acidification is pronounced. The most important chemical parameters that cause or contribute to the adverse effects of acidification on aquatic biota are decreased pH (increased H+), increased inorganic Al, and decreased Ca2+ concentrations. Different species and stages in the life history of a given species differ in their tolerance to variations in these three critical parameters.
Base cation release from the watershed is not the only aspect of base cation dynamics that is important with respect to acidification from acidic deposition. Significant amounts of base cations also are contributed to the aquatic and terrestrial systems from the atmosphere. Driscoll et al. (1989a) suggested that atmospheric deposition of base cations can have a major effect on surface water response to changes in atmospheric inputs of SO42-. They presented a 25-year continuous record of the chemistry of bulk precipitation and stream water at the Hubbard Brook Experimental Forest (HBEF) in New Hampshire.
In other cases, a maximum “reasonable” F was calculated for a given lake or stream by assuming a lower reasonable level for initial pre-acidification CB. A high F-factor is then estimated as the difference between current CB and the lower estimate for pre-industrial CB divided by the estimated change in (SO42- + NO3-) concentration. , 1984, 1987). Brakke et al. S. lakes having low concentrations of base cations. , 1988; Sullivan, 1991), but is probably not always the case. , 1988). The issue of potential change in organic acid anion concentrations in response to acidic deposition has largely been ignored in much of the acidic deposition literature.