Trends in Chemical Concentration in Sediment cores from Three Lakes in New Jersey and One Lake on Long Island, New YorkDIANE Publishing |
عبارات ومصطلحات مألوفة
analysis base cadmium chlordane concentrations chromium Clyde Potts Reservoir concentrations in recently concentrations in sediment concentrations of lead concentrations of organochlorine concentrations of trace core table date-depth marker decadal population detected Dieldrin elements and hydrophobic Environmental Protection Agency hydrophobic organic compounds increased Jersey and Newbridge lake cores ranged lake sediment Long Island Metre MICROGRAMS PER GRAM Newbridge Pond core nickel older to younger Orange Reservoir core organochlorine compounds Packanack Lake cores peak concentration polychlorinated biphenyls Polycyclic Aromatic Hydrocarbons Pond and Packanack Pond on Long Potts and Orange Potts Reservoir core recent sediment recently deposited sediment Reservoir and Packanack respective core sediment cores sedimentation rate significant downward trend significant trend Significant upward trend sorb three urban lakes throughout the core total DDT concentrations Total PCB concentrations trace elements trend from older trends in concentrations U.S. Environmental Protection U.S. Geological Survey urbanized watersheds USGS Van Metre water quality water-quality younger sediments zinc concentrations
مقاطع مشهورة
الصفحة vi - ... Assessment (NAWQA) Program in 1991 to support national, regional. State, and local information needs and decisions related to water-quality management and policy (http://water.usgs.gov/nawqa). The NAWQA Program is designed to answer: What is the condition of our Nation's streams and ground water? How are conditions changing over time? How do natural features and human activities affect the quality of streams and ground water, and where are those effects most pronounced? By combining information...
الصفحة vi - Collectively, these Study Units account for more than 60 percent of the overall water use and population served by public water supply, and are representative of the Nation's major hydrologic landscapes, priority ecological resources, and agricultural, urban, and natural sources of contamination. Each assessment is guided by a nationally consistent study design and methods of sampling and analysis. The assessments thereby build local knowledge about water-quality issues and...
الصفحة vi - Nation's major hydrologie landscapes, priority ecological resources, and agricultural, urban, and natural sources of contamination. Each assessment is guided by a nationally consistent study design and methods of sampling and analysis. The assessments thereby build local knowledge about waterquality issues and trends in a particular stream or aquifer while providing an understanding of how and why water quality varies regionally and nationally. The consistent, multi-scale approach helps to determine...
الصفحة vi - ... (http://www.usgs.gov/). Information on the quality of the Nation's water resources is critical to assuring the long-term availability of water that is safe for drinking and recreation and suitable for industry, irrigation, and habitat for fish and wildlife. Population growth and increasing demands for multiple water uses make water availability, now measured in terms of quantity and quality, even more essential to the long-term sustainability of our communities and ecosystems. The USGS implemented...
الصفحة 7 - Any use of trade names and trademarks in this publication is for descriptive purposes only and does not constitute endorsement by the US Geological Survey.
الصفحة vi - USGS because it is so integrally linked to the long-term availability of water that is clean and safe for drinking and recreation and that is suitable for industry, irrigation, and habitat for fish and wildlife. Escalating population growth and increasing demands for the multiple water uses make water availability, now measured in terms of quantity and quality, even more critical to the long-term sustainability of our communities and ecosystems. The USGS implemented the National WaterQuality Assessment...
الصفحة vi - ... practical and effective water-resource management and strategies that protect and restore water quality. We hope this NAWQA publication will provide you with insights and information to meet your needs, and will foster increased citizen awareness and involvement in the protection and restoration of our Nation's waters. The USGS recognizes that a national assessment by a single program cannot address all water-resource issues of interest. External coordination at all levels is critical for a fully...
الصفحة 6 - A class of organic compounds with a fused-ring aromatic structure. PAHs result from incomplete combustion of organic carbon (including wood), municipal solid waste, and fossil fuels, as well as from natural or anthropogenic introduction of uncombusted coal and oil. PAHs included benzo(a)pyrene, fluoranthene, and pyrene.
الصفحة vi - The USGS places high value on the communication and dissemination of credible, timely, and relevant science so that the most recent and available knowledge about water resources can be applied in management and policy decisions. We hope this NAWQA publication will provide you the needed insights and information to meet your needs, and thereby foster increased awareness and involvement in the protection and restoration of our Nation's waters. The NAWQA Program recognizes that a national assessment...