The Statement of Issues cited thirteen issues--including whether it was arbitrary "for the Administrator to ignore acid deposition
impacts upon sensitive and critically sensitive aquatic and terrestrial resources in establishing a system for the allocation, transfer, use and tracking of sulfur-dioxide allowances.
, for example, is limited to the reduced effects on recreational fishing yields, and fails to consider the broader impacts on forests, crops/vegetation, and cultural/historic materials.
This identification process is possible even when acid deposition
travels hundreds of kilometers from its source.
The report also signals an important shift from a focus on sulfur dioxide emissions and acid deposition
to a broader perspective that includes a much wider range of potential pollutants, such as ozone, volatile hydrocarbons and toxic heavy metals (SN: 7/18/87, p.
Although Minnesota Pollution Control Agency researchers believe that aquatic resources are the most sensitive, increasing research may show that the forests of canoe country are also at risk from acid deposition
My general impression is that thelinkage between acid deposition
and aquatic effects has become stronger,' says Cowling.
If any villain has been caught with a smoking gun during these three years of intense study, it's not sulfur or nitrogen in acid deposition
, but ozone.
The NAS study released last week, "Acid Deposition
: Long-Term Trends," suggests that in certain cases, none of the alternative explanations accounts for lake acidity as fully as the effect of sulfur dioxide emissions from the burning of fossil fuels and the resulting acid deposition
The solution to the acid deposition
problem must represent a 'win-win' situation for both the Northeast and the Midwest," says McCormick.
6) indicates that fertilizers rich in ammonium ions in particular, together with the enchanced biological activity promoted by any nitrogen fertilizer, acidify soil more than acid deposition
The Mesa Verde project is only one of several ongoing studies designed to examine the effects of acid deposition
At the same time, National Acid Deposition
Program (NADP) stations in Colorado, Wyoming and Idaho were measuring the concentration of various ions found in precipitation.