(52) In advisory committee sessions, the Adirondack Council urged the EPA to adopt the approach taken in New York's Acid Deposition
Act, and to retain the power to intervene in trades that might contribute additional deposition to sensitive resource areas.
Many other benefits are likewise ignored or underestimated in most studies, specifically the diminution of impacts and effects from improvements in stratospheric ozone depletion, acid deposition
and hazardous air pollutants.
To understand the environmental impact of the CAAA and to develop new methods to protect the environment from acid deposition
, it is important to address the relationship between emissions and deposition (the source-receptor relationship).(170) As a result, the National Acid Precipitation Assessment Program developed the Tagged Species Engineering Model ("TSEM") to analyze the source-receptor relationships.(171) By understanding the relationship between emissions and deposition, it is possible to identify the emissions source which produced particular acid deposition
Over the past four decades, it became clear that the damaging effects of acid deposition
on forests, agriculture, and soils needed to be documented.
Granite weathering and the sensistivity of alpine lakes to acid deposition
. Limnology and Oceanography 35:1112-1134.
Moreover, the assessment reports results of new supercomputer simulations using NAPAP's Regional Acid Deposition
Model (RADM), indicating that cutting [SO.sub.2] emissions by 50 percent would not yield a commensurate decrease in acid deposition
Environmental Effects pH Value Examples pH=0 Battery acid pH=1 Sulfuric acid pH=2 Lemon juice, vinegar Few fish survive pH=3 Orange juice, soda (4.2) Frog eggs, pH=4 Acid rain (4-5) tadpoles, Acidic lake (4.5) crayfish, and mayflies die (5.5) pH=5 Bananas (5.0-5.3) Rainbow trout Clean rain (5.6) begin to die (5.5) Milk (6.5-6.8) Sensitive minnows die pH=6 Normal lake (6.5-8.0) (6.2) pH=7 Pure water pH=8 Sea water, eggs PF =9 Baking soda pH=10 Milk of Magnesia pH=11 Ammonia pH=12 Soapy water pH=13 Bleach pH=14 Liquid drain cleaner Acid deposition
affects specific components of the environment
Calculation of digestible fatty acid intake, fatty acid deposition
and minimum de novo synthesis
Years of research by Interior have shown that the problems associated with poor air quality--impaired visibility, acid deposition
in streams, damage to plants from ozone, and eutrophication of coastal water--are increasing.
In 1980, President Carter created NAPAP as a 10-year program to study not only the causes and effects of acid deposition
but also the best strategies for controlling iti(SN: 2/16/80, p.106).