| The DEP, under cooperative agreement with
Penn
State, has maintained the Pennsylvania Atmospheric Deposition Monitoring
Network since 1981. The purpose of this program is to determine how much acid
rain is falling in Pennsylvania for environmental assessment purposes. Parameters
monitored include pH, sulfate, nitrate, ammonium, chloride, calcium, magnesium,
potassium, sodium, and specific conductance. Starting in 1997, measurements were
made of the amount of mercury in rain. The DEP currently supports 11 acid rain
and 8 mercury monitoring sites. Acid
Rain Information Acid rain has been in the headlines for a number of years.
It's effects on forests and soils, streams and lakes, fish and other organisms,
materials, and human health have been well documented. Title IV of the Clean Air
Act has successfully reduced two of the major pollutants that cause acid rain
that are emitted from large stationary sources. But more needs to done before
the environment can recover. Pennsylvania Acid
Rain Monitoring Sites and Data
See a map of acid
rain monitoring sites in Pennsylvania. Click on a site to get more information
including raw acid rain data in a text format. 
Reductions in Acidic Wet Deposition Following
Implementation of the Clean Air Act Amendments of 1990: 1995-2006
See how the CAAA rule has affected the amount of acid rain
falling in Pennsylvania.
Atmospheric Deposition: Spatial and Temporal Variations
In Pennsylvania 2006
Report on the magnitude and
distribution of wet atmospheric deposition and associated toxic and nutrient elements
in Pennsylvania Acid Rain Isopleth Maps
Colored maps depicting the concentration and deposition of
acid rain in Pennsylvania. National EPA's
Acid Rain Program
EPA's goal is to achieve significant
environmental and public health benefits through reductions in emissions of sulfur
dioxide and nitrogen oxides, the primary causes of acid rain. National
Atmospheric Deposition Program
A nationwide network
to collect data on the chemistry of precipitation for monitoring of geographical
and temporal long-term trends. CASTNET
The nation's primary source for data on dry acidic deposition
and rural, ground-level ozone. Operating since 1987, CASTNET is used in conjunction
with other national monitoring networks to provide information for evaluating
the effectiveness of national emission control strategies. Mercury
in Rain Mercury is emitted into the air primarily by large coal-fired power
plants. Mercury in the air is usually of little direct concern. But when mercury
is washed from the air by rain into our streams and lakes, it is transformed to
a highly toxic form that can build up in fish. People are then exposed to mercury
by eating fish. Pennsylvania
2006 Mercury in Rain Report
Results of mercury sampling in Pennsylvania's rain with comparisons to the rest
of the country. Mercury
Monitoring Sites and Data
See a map of acid rain
monitoring sites in Pennsylvania. Click on a site to get more information including
mercury data.
Mercury in Rain Isopleth Maps
Colored maps depicting the concentration and deposition of
mercury in rain in Pennsylvania. P3ERIE
A pollution prevention initiative comprised of businesses,
government organizations, civic organizations, educational institutions in the
greater Erie community. DEP
Mercury Thermometer Web Site
Common questions,
and answers, on mercury thermometers in your home. Fish Consumption
Advisory
Mercury in the environment can accumulate
in fish. Refer to the advisory for more information on which fish are safe to
eat.
Fish
Tissue Sampling Results in Pa. (Excel)
Pennsylvania
Fish Consumption Advisory
EPA's
National Advisory for women and children. Other NADP-MDN
Concentration and Deposition Maps
Maps showing
mercury concentrations and deposition amounts at various sites across the country.
EPA's
Mercury Web Site
Learn more about mercury and
what's being done to protect your health. | 
