Soc. Acid deposition can reduce the pH of surface waters, lower biodiversity, and increase the susceptibility of … Accuracy in mixing is not the most important part here- measuring the acidity … Lack of long-term records has made it difficult to determine how fast rainfall acidity is changing, and whether the problem is intensifying or spreading. Since its inception in 1995, the ARP has earned widespread acclaim due to dramatic reductions of sulfur dioxide (SO2) and nitrogen oxides (NOX) emissions from fossil fuel-fired power plants, extensive environmental and human health benefits, and far lower-than-expected costs. The core principles of accountability, transparency, and results have characterized every iteration of our regulatory efforts since the ARP started it all. This paper reviews the 2012 progress report of US EPA (2013) and summarizes the issue in various environmental aspects. The forest products industry needs to think of itself as a net receiver rather than a primary emitter of air pollution, acid rain, and atmospheric deposition. means that a form can be submitted via that method; a blank space means it cannot. About the author: Christopher Grundler is the Director of the Office of Atmospheric Programs. More research is needed to determine to what extent acid precipitation is responsible for forest declines and for smaller detrimental effects on forest growth where no damage to the foliage is evident. Acid rain - Acid rain - Effects on lakes and rivers: The regional effects of acid deposition were first noted in parts of western Europe and eastern North America in the late 1960s and early 1970s when changes in the chemistry of rivers and lakes, often in remote locations, were linked to declines in the health of aquatic organisms such as resident fish, crayfish, and clam populations. 14 references, 5 figures, 1 table. When coupled with the complex interactions of ecosystems, the gradual effects of acid rain are extremely difficult to quantify. in this heavily industrialized . example, the first bill introduced in 1985 was S.52, ''The Acid Rain Control Act of 1985.'' EPA cannot attest to the accuracy of non-EPA information provided by any third-party sites or any other linked site. The extra acidity must . Recent federal coordinated research programs that have been developed on the biological and atmospheric aspects of the acid deposition problem are presented. Carbon dioxide and various oxides of nitrogen also make acid in the atmosphere. … - Bull. i. EPA is proud of the successes of the ARP and its subsequent interstate emission reduction programs and the marked progress those programs have achieved in cleaning up SO2 and NOx. Am. Congress created the ARP in Title IV of the 1990 Clean Air Act Amendments, in response to deterioration of ecosystem health in lakes, streams, and forests across the United States and Canada, particularly in northeastern North America. contact for further information. Alkalinity comes from rocks and soils, salts, certain plant activities, and certain industrial wastewater discharges. EPA does not endorse any non-government websites, companies, internet applications or any policies or information expressed therein. Existing scientific research has linked acid rain to increased environmental degradation. By William Wanyagah Acid Rain, How and Why it occurs, effects and methods used to counter Motor Vehicles Effects of Acid Rain Acid Rain may be produced in area but the clouds formed can be carried across great distances by wind. adult mortality risk decreased significantly. Wet deposition is rain, sleet, snow, or fog that has become more acidic than normal. In doing so, EPA is directing you only to the specific content referenced at the time of publication, not to any other content that may appear on the same webpage or elsewhere on the third-party site, or be added at a later date. Many lakes and streams are extremely sensitive to added, Acid rain is known to acidify natural waters, resulting in damage to fish and other components of the aquatic ecosystem, degradation of drinking water supplies, deterioration of man-made structures, erosion of soils and damage to forests and crops. These chemicals are both natural and artificial. 1005-1013. EPA is providing this link for informational purposes only. The views expressed here are intended to explain EPA policy. Major sources are thought to be atmospheric emissions, mostly from urban sources, although exact locations and the means by which emissions are transformed to acid rain are not entirely clear. EPA's official web site is www.epa.gov. 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