Download or read book The Influence of Bedrock Geology on the Ability of Pennsylvania Headwater Streams to Resist Acidification Caused by Acid Precipitation written by Melissa D. Turner and published by . This book was released on 2003 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: The acidification of headwater streams due to acid rain is an ecological and economic problem. Determines the effect of bedrock geology on the ability of a headwater stream to ameliorate influxes of acid rain.

Download or read book Effects of Acidic Precipitation on the Water Quality of Streams in the Laurel Hill Area Somerset County Pennsylvania 1983 86 written by James L. Barker and published by . This book was released on 1990 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Summary Report on the Causes of Acidity in Selected Headwater Streams in the Laurel Mountains of Pennsylvania written by and published by . This book was released on 1982 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Probable Effects of Acid Precipitation on Pennsylvania Waters written by Dean E. Arnold and published by . This book was released on 1980 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrologic and Geochemical Factors Affecting the Chemistry of Small Headwater Streams in Response to Acidic Deposition on Catoctin Mountain North Central Maryland written by Karen C. Rice and published by . This book was released on 1996 with total page 74 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geological Controls on the Sensitivity of Headwater Streams to Acid Precipitation in the Laurel Highlands of Pennsylvania written by Richard Steven Dinicola and published by . This book was released on 1982 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pennsylvania Perspective on Acid Rain written by and published by . This book was released on 1984 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Evaluation of the Effects of Acid Rain on Low Conductivity Headwater Streams in Pennsylvania written by John R. Ritter and published by . This book was released on 1981 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Acidic Deposition on Aquatic Ecosystems in Pennsylvania written by William E. Sharpe and published by . This book was released on 1999 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Quality of Three Forest Streams in Pennsylvania Impacted by Acidic Atmospheric Deposition written by Brendan Reed and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Acidic atmospheric deposition has impacted forests and waterways of the northeastern United States. Acidic deposition is largely attributed to compounds emitted to the atmosphere from combustion of fossil fuels for power generation. Major impacts of acid deposition on forested watersheds are part of an acidification process. Declines in pH of soils can lead to leaching of base cations from soils that decrease the ability of a watershed to buffer itself from incoming acids. Declines in pH of streamwater are often accompanied by changes in stream base cation loads and increases in dissolved inorganic aluminum concentrations, which in turn negatively affect aquatic life. Due to the Clean Air Act Amendments of 1990 and other policies, rates of acidic atmospheric deposition have greatly decreased in the northeastern United States in recent decades. Questions remain, however, about whether acid-sensitive forested watersheds will be able to recover from decades of acid deposition, and the length of time that it will take for this recovery to occur. This project quantified improvement in water quality in forested Pennsylvania streams in response to decreases in acidic atmospheric deposition since the early 1990s. In addition to analyzing long-term records of a single sampling site on each stream, I conducted synoptic sampling of stream segments throughout three forested headwater watersheds under summer baseflow conditions in order to characterize how water quality in the main channels changed from headwaters to outlet. All three watersheds have been subject to heavy loadings of acid deposition in recent decades, two of the watersheds (Roberts Run and Stone Run) were poorly buffered and thus acid-sensitive, while one of the watersheds (Young Womans Creek) was well buffered and thus acid-tolerant. Results show that some chemical recovery (i.e., increased pH, decreased aluminum concentrations) has occurred in the acid-sensitive streams. However, the sensitive watersheds are still considered to be chronically acidified along much of their stream length in terms of water quality parameters. The measured acid neutralizing capacity has not shown significant increases over the period of record. The acid-sensitive streams are thus still at high risk of episodic acidification, and biological recovery has likely not yet fully occurred.

Download or read book Evidence for Acid precipitation induced Trends in Stream Chemistry at Hydrologic Bench mark Stations written by Richard A. Smith and published by . This book was released on 1983 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the 1998 Pennsylvania Acidic Deposition Conference written by William E. Sharpe and published by . This book was released on 1999 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Acidic Precipitation on the Water Quality of Streams in the Laurel Hill Area Somerset County Pennsylvania 1983 86 written by James L. Barker and published by . This book was released on 1990 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Wildlife in North Carolina written by and published by . This book was released on 1992 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Acid Rain written by Marcus Schneck and published by . This book was released on 1990 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Probable Effects of Acid Precipitation on Pennsylvania Waters written by U. S. Environmental Protection Agency and published by BiblioGov. This book was released on 2013-07 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Environmental Protection Agency (EPA) was introduced on December 2, 1970 by President Richard Nixon. The agency is charged with protecting human health and the environment, by writing and enforcing regulations based on laws passed by Congress. The EPA's struggle to protect health and the environment is seen through each of its official publications. These publications outline new policies, detail problems with enforcing laws, document the need for new legislation, and describe new tactics to use to solve these issues. This collection of publications ranges from historic documents to reports released in the new millennium, and features works like: Bicycle for a Better Environment, Health Effects of Increasing Sulfur Oxides Emissions Draft, and Women and Environmental Health.

Download or read book Geohydrology of Southeastern Pennsylvania written by Dennis James Low and published by . This book was released on 2002 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: