Acid deposition


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Acid deposition

The deposit of acid constituents to a surface. This occurs not only through precipitation but also by the deposition of atmospheric particulate matter and the incorporation of soluble gases.
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[were] consistent with the intent and purpose of the New York State Acid Deposition Control Act of 1984." (45)
S[O.sub.2] and N[O.sub.x] are precursors for acid deposition, which have adverse effects upon aquatic and terrestrial ecosystems.
The EPA may be more effective in dealing with the acid rain dilemma by utilizing computer models to determine acid deposition standards.(162) The EPA could then set the national or regional emissions levels for [SO.sub.2] and nitrogen oxides to meet those standards.(163) Congress could then set the emissions caps and allowance allocations for [SO.sub.2] and nitrogen oxides accordingly.(164) The resultant trading program would more accurately reflect a reduction in environmental degradation, because instead of merely reflecting a reduction in [SO.sub.2] emissions, it would allow the harm to be factored into permissible emissions levels.
The Adirondack Mountains were particularly affected by acid deposition. The region is downwind of many pollution sources, receives high rates of precipitation, and its higher peaks are often surrounded by clouds and fog which are generally more acidic than rain.
Participants are expected to decide on designating a Niigata-based acid rain research center as the backbone of the Acid Deposition Monitoring Network in East Asia (EANET).
Acid deposition also, of course, attacks buildings, accelerating corrosion, fracturing and discolouring different structures (things like statues are often the most high profile victims), levying both an aesthetic and monetary cost in terms of damaged masterpieces and architectural restoration.
If we have to go back and say we made a mistake in the 1980s when we concluded that acid deposition was not a big problem, then, as they say in Los Angeles, 'If the globe fits'..." - JOHN FLYNN
A field experiment to test whether organic acids buffer acid deposition. Nature 345:798-800.
Mid-Atlantic waterways are more sensitive to acid deposition because area soils have nearly reached their acid-neutralizing capacity.
Sedimentary and environmental geochemistry - Topics include: mobility of the elements in air, water and the surficial environment; geochemical cycles of elements and chemicals of environmental interest; plant composition, animal and human health in relation to the natural environment; acid deposition and other processes affecting water quality; environmental aspects of fossil fuel processing; and sampling design in large scale environmental studies.