By Timothy J Sullivan
"While now not an everyday information merchandise, acidic deposition remains to be a widespread factor for environmental managers and coverage makers. Emissions of sulfur and nitrogen from energy vegetation, business amenities, and motorcars - significant factors of acidic deposition - nonetheless pour into the ambience each day. Aquatic results of Acidic Deposition summarizes and synthesizes significant developments in clinical research, Read more...
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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. , 1974; Krug and Frink, 1983) and the topic was reviewed by Marmorek et al. (1988). The latter study concluded that there were inconsistencies in the available data, but most evidence suggested that organic acids have been lost from surface waters in response to increased acidic deposition. The best historical evidence available to Marmorek et al.
Thus, by using a combination of an acid–base chemistry model and a fish response model, we can estimate the potential long-term effects of changes in acidic deposition on fish communities. 3 MONITORING One of the best ways to study the hydrogeochemistry of forested watersheds has been through carefully designed monitoring programs. Unfortunately, monitoring has long been viewed by many scientists and funding agencies alike as rather routine, not exciting or cutting-edge, perhaps boring. It has not helped the situation that some monitoring programs have operated for years, blindly collecting data, without any critical examination, adherence to quality assurance/quality control (QA/QC) procedures, or consideration of how the resulting data could or should be used.
Naturally-occurring organic acid anions, produced in upper soil horizons, normally precipitate out of solution as drainage water percolates through lower mineral soil horizons. , 1990). Drainage waters below this depth generally have high ANC. The addition of strong acid anions from atmospheric deposition allows the natural soil acidification and cation leaching processes to occur at greater depths in the soil profile, thereby allowing water rich in mobile anions to emerge from mineral soil horizons.