Crystalline solids with highly structured micro-scale pores are called zeolites. Their well-defined structure and large contact surface make them extremely useful as catalysts. Their most common use is in washing powders. Different features are caused by the shape and size of the pores and the prese
Cooperative federal-state liming research on surface waters impacted by acidic deposition
โ Scribed by R. Kent Schreiber
- Book ID
- 104649073
- Publisher
- Springer Netherlands
- Year
- 1988
- Tongue
- English
- Weight
- 742 KB
- Volume
- 41
- Category
- Article
- ISSN
- 0049-6979
No coin nor oath required. For personal study only.
โฆ Synopsis
In the eastern and north-central United States, lakes and streams with low acid neutralizing capacity are at risk from acidity. Resource management agencies are interested in developing mitigation strategies that protect or restore fisheries in these waters. Addition of limestone (calcium carbonate) to improve water quality and prevent episodic depressions of pH during precipitation events and spring runoff is one mitigation technique being used. The ecological changes that accompany such treatment of streams and lakes are being investigated in a cooperative program between the U.S. Fish and Wildlife Service and individual states. Streams in Massachusetts, West Virginia and Tennessee, and a lake in Minnesota are included in this 5-yr research program. Intensive monitoring during pre-and post-liming tracks a suite of physical, chemical and biological parameters that influence the reestablishment or maintenance of healthy fisheries. Supporting studies on liming being conducted at Adirondack lakes in New York focus on fisheries management. A model on the influence of liming on light attenuation and thermal stratification is also being developed. Management guidelines are to be generated from the program results.
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