Filters: Tags: Toxic Substances (X) > partyWithName: John F Walker (X)

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Determine Baseline and Sources of Toxic Contaminant Loadings Description of Work U.S. Geological Survey (USGS) is identifying the types and locations of emerging and legacy toxic contaminants in the water and sediments at 59 major tributaries to the Great Lakes (including many Area of Concern sites). This information is needed to help prioritize watersheds for restoration, develop strategies to reduce contaminants, and measure the success of those efforts in meeting restoration goals. The USGS contaminant and virus tributary monitoring network follows the National Monitoring Network for Coastal Waters design. The monitoring effort includes collecting emerging contaminant samples at 17 sites, a subset of the 30 nutrient monitoring sites; and for human viruses and other waterborne... Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Emerging contaminants, GLRI, Great Lakes Restoration Initiative, Great Lakes Restoration Initiative, Great Lakes Tributaries, All tags... Lake, Lake:Lake Erie, Lake:Lake Huron, Lake:Lake Michigan, Lake:Lake Ontario, Lake:Lake St. Clair, Lake:Lake Superior, Legacy contaminants, National Monitoring Network, Template 78, Toxic Substances, Trace organic contaminants, Uploaded in Batch, Wastewater contamination, Waterborn pathogens, toxic contaminants, Fewer tags Benthos & Plankton in Wisconsin's Lake Michigan AOCs Description of Work Benthos (benthic invertebrate) and plankton (phytoplankton/zooplankton) communities in Wisconsin's four Lake Michigan Areas of Concern (AOCs; Menominee River, Lower Green Bay and Fox River, Sheboygan River, and Milwaukee Estuary) and six non-AOCs will be quantified. The inclusion of non-AOC sites will allow comparison of AOC sites to relatively-unimpacted or less-impacted control sites with natural physical and chemical characteristics that are as close as possible to that of the AOCs. The community data within and between the AOCs and non-AOCs will be analyzed. This project is a cooperative agreement between the Wisconsin Department of Natural Resources (WDNR) and the US Geological Survey (USGS).... Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: AOC, Areas of concern, Beneficial use impairment, Ecosystem health, Fox River, All tags... GLRI, Great Lakes Restoration Initiative, Great Lakes Restoration Initiative, Green Bay, Lake, Lake:Lake Michigan, Menominee River, Milwaukee Estuary, Sheboygan River, Toxic Substances, Watershed, Watershed:Lake Michigan Basin, benthos, invertebrates, phytoplankton, plankton, Fewer tags AOC Decision Support Description of Work USGS scientists will develop support to State partners for the removal of Beneficial Use Impairments (BUIs) such as fish consumption advisories, fish tumor presence, Eutrophication and unwanted algae, drinking water problems, beach health, and concentrations of PCBs in lake trout and walleyes. Areas of Concern (AOC) principles and guidelines were developed as an initial reference point from which appropriate restoration criteria could be developed. Stage 2 Remedial Action Plans (RAPs) were developed for each of these AOCs to address impairments to any one of 14 beneficial uses associated with these areas. Specific remediation actions are completed in order to restore the beneficial use. When... Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Areas of concern, Beneficial use impairment, Ecosystem health, GLRI, Great Lakes Restoration Initiative, All tags... Great Lakes Restoration Initiative, Human health, Lake, Lake:Lake Erie, Lake:Lake Huron, Lake:Lake Michigan, Lake:Lake Ontario, Lake:Lake St. Clair, Lake:Lake Superior, Mercury, Pollution event, Storm event, Template 384, Toxic Substances, Uploaded in Batch, Wastewater contamination, optical properties of water, waterborne pathogens, Fewer tags Evaluation of contaminants and their potential biological effects in Great Lakes tributaries Description of Work The first major goal of this project is to characterize and evaluate the extent to which contaminants of emerging concern (CECs) threaten fish and other wildlife in the Great Lakes. This includes identifying and characterizing CECs in the Great Lakes Basin, identifying risk-based screening concentrations for priority CECs, evaluating population-relevant effects of complex mixtures on biota, and identifying the Great Lakes waterways at greatest risk. The second major goal of this project is to pilot and develop a short-term and an ongoing long-term state-of-the-art bioeffects surveillance program for the Great Lakes basin. This includes developing strategies which will account for variable conditions... Categories: Project; Tags: Biology, Contaminants, GLRI, Great Lakes, Great Lakes Restoration Initiative, All tags... Habitat & Wildlife, Lake:All, Template 673, Template 726, Toxic Substances, Watershed, Fewer tags Mercury Cycling and Bioaccumulation in the Great Lakes Description of Work U.S. Geological Survey (USGS) scientists are improving the health of the Great Lakes sport and commercial fisheries by documenting sources and the determining the processes that control mercury entering food webs, and helping to evaluate the implications for public health. Our scientists will provide decision-makers with a scientific understanding of mercury-source profiles, the relative importance of the various sources, and the expected environmental responses to Great Lakes wasters and fisheries to altered mercury loading and restoration actions. This information is intended to inform and maximize the benefit of the Great Lakes restoration program. The USGS will develop mercury and methylmercury... Categories: Project; Types: Map Service, OGC WFS Layer, OGC WMS Layer, OGC WMS Service; Tags: Areas of concern, Beneficial use impairment, Bioaccumulation, Deposition, Ecosystem health, All tags... GLRI, Great Lakes Restoration Initiative, Great Lakes Restoration Initiative, Human health, Lake, Lake:Lake Erie, Lake:Lake Huron, Lake:Lake Michigan, Lake:Lake Ontario, Lake:Lake St. Clair, Lake:Lake Superior, Template 79, Toxic Substances, Uploaded in Batch, Whole-lake, mercury, methylmercury, Fewer tags