The alkaline chemicals, or cations ( pronounced CAT-ions ), are leached from the soil by acid precipitation and carried away by streams.
12.
The high elevations also expose plant life to high levels of pollution, including acid precipitation in the form of rain, snow, and fog.
13.
Not to mention, as sulfur dioxide is emitted into the atmosphere, it forms into acid precipitation as it reacts with water, nitrogen oxides and other sulfur oxides.
14.
It looked at the effects of acid rain and funded research on the effects of acid precipitation on freshwater and terrestrial ecosystems, historical buildings, monuments, and building materials.
15.
A 10-year federal assessment of the problem concluded in 1990 that with some exceptions, there was no clear evidence linking acid precipitation to any important harmful effect on forests.
16.
EPA precipitation samples in 1995 show reduced acid precipitation from Maryland to Maine, where rain and snow is up to 25 percent less acidic than a few years ago.
17.
Acid precipitation occurs when sulfur or nitrogen borne on the prevailing winds mixes with atmospheric moisture to form sulfuric or nitric acid, falling earthward as acid rain, snow or fog.
18.
According to the team's final model, which includes statistics from 653 sites, the probability of Wood Thrushes attempting to breed decreases as the deposition of ions from acid precipitation increases.
19.
The new federal report provides much good news about the 1990 amendments, saying that they have effectively and relatively inexpensively reduced sulfur emissions and acid precipitation in much of the country.
20.
Like wet sponges that no longer can soak up water, parts of the Adirondacks are becoming saturated with nitrogen and thus incapable of buffering waterways from acid precipitation, the report suggests.
