By Gerald R. Visgilio, Diana M. Whitelaw
This publication is the results of a convention held biannually on the Goodwin-Niering middle for Conservation Biology and Environmental reports at Connecticut university. It makes use of an interdisciplinary method of specialize in very important ecological affects of acid deposition. The ebook combines learn findings and the coverage analyses of specialists from diversified educational disciplines with the positions complicated via representatives of varied nongovernmental corporations.
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Extra info for Acid in the Environment: Lessons Learned and Future Prospects
There was also considerable concern among the scientists working on forests, in particular, that there were synergistic effects of other air pollutants, especially ozone, and acid deposition that were important stressors on forests in the eastern United States. The acid deposition program simply could not deal with all of these issues at once, and the policy/regulatory apparatus of EPA certainly could not deal with these issues of multiple environmental stresses. The end result was that there was policy action that was quite effective at reducing the emissions and deposition of sulfur, but nitrogen and ozone issues were left for another day, regardless of the fact that it was already well-understood that they had become important stressors on the ecosystems.
2004). Hubbard Brook was the site where acidic deposition was first reported in North America (Likens et al. 1972). Hubbard Brook receives elevated inputs of acidic deposition and the forest ecosystem is very sensitive to these inputs. There have been long-term measurements and studies of acidic deposition and its effects on forests and streams at Hubbard Brook (Likens et al. 1996; Driscoll et al. 2001). 34 Charles T. Driscoll et al. 5). These reductions in wet sulfate deposition are consistent with the emissions reductions called for in the 1990 CAAA.
From 1990 to 2002 nitrogen oxide emissions have decreased 12%. 8 million fewer tons of nitrogen oxide than the level that would have occurred without the CAAA. However, no cap on total annual emissions of nitrogen oxides was set. Nevertheless, it is expected that nitrogen emissions will decrease gradually in the future due to a variety of federal and state emission control programs. 2). 2. Annual emissions of sulfur dioxide and nitrogen oxides for the source area of the Hubbard Brook Experimental Forest.