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Aquatic Flora and Fauna:

Wildlife – Acid rain lowers the biological productivity of lakes and reduces the amount of forage fish available to loons. Toxicity from mercury pollution of water bodies can lead to decreased reproductive success of loons as well.

A forest

Forests – Sulfur and nitrogen deposition have caused adverse impacts on certain highly-sensitive forest ecosystems, most notably the high-elevation, spruce-fir forests in the eastern United States. Forests are damaged because acid precipitation drains nutrients from the soil. Excess nitrogen in the air also may adversely affect tree growth. Evidence of decreased growth and dieback has been found in the Adirondacks.

Visibility – Dry acidic particles in the air lessen visibility. When winds blow from the southwest at Whiteface Mountain in the Adirondacks, visibility can be reduced from 50 miles to fewer than 5 miles.

SUNY headquarter

Architecture – For materials, buildings, bridges and cultural resources, dry deposition is now considered to be more damaging to stone than wet deposition.

Human Health – High concentrations of fine-particulate sulfate and nitrate can enter the cardiovascular and respiratory systems, resulting in disease or even death. Metals, such as mercury and cadmium from soil deposits in lakes, streams, and reservoirs, can accumulate in the tissues of fish, making them toxic to humans. Metals also can be leached from the soil into reservoirs, or from old lead and copper pipes directly into home water supplies, causing serious illness.

Things You Can Do to Help

  • Conserve energy in your home and office.
  • Utilize public transportation, car pool, or walk.
  • Purchase clean electric power.
  • Learn more about acid rain on EPA’s Acid Rain information webpage.

Monitoring in the Adirondacks

The NYSDEC collects hourly SO2 data at four locations in the Adirondacks as part of the monitoring network established after the NYS Acid Deposition Control Act was signed in 1984. The three plus decades of SO2 data have shown consistent declines in concentration well correlated with reductions in emissions both within and upwind of New York State. One recent result of this decrease is that the continuous monitoring method is now inadequate in rural areas. Continuous SO2 analyzers were designed to produce data that can be compared to the higher concentrations relevant for the NAAQS. Features such as auto zeroing were not implemented for these instruments and EPA regulations do not permit post adjusting data to remove signal drift. A large poster containing our data review over the period 2008-2017 is available below.