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This data set includes results for hormone and pharmaceutical compounds analyzed in environmental and quality-control samples collected by the USGS National Water-Quality Assessment Project during 2013 through 2015 for a study of groundwater resources used for drinking-water supply across the United States. Hormone and pharmaceutical results are provided for environmental samples collected at 1,120 wells or springs; selected ancillary data, such as principal aquifer, well depth, and land-use information also are provided for the sampled sites. The types of quality-control samples included in this data set are blanks, matrix spikes, and replicates collected at field sites or field offices. Included in this data...
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Originating from different activities that were part of the University of Alaska’s contribution to the Fourth International Polar Year, this interdisciplinary volume addresses a host of current concerns regarding the rapid transformation of the Arctic and its impacts on people and ecosystems. Close to a hundred contributors with a broad range of backgrounds examine Arctic change from an Alaska perspective, providing insight into different approaches of evaluating and preparing for environmental and socio-economic change. Thanks to its coverage of important social-ecological systems and processes, including fresh water, marine resources, the coasts, and oil and gas development, this volume explores opportunities...
In a temperate glacier there are typically one to several meltwater reservoirs affecting the shape and timing of the glacier's meltwater hydrograph. This study applies recessional analysis to define the number of meltwater reservoirs at the Matanuska Glacier, a large valley glacier (379km super(2)) in south-central Alaska with a relatively long discharge record (1995-2002). Three meltwater reservoirs were identified with mean residence times ( K) of 21.0, 37.1 and 88.8 hours. Annual mean K values show a significant drop to their lowest values in 1996, followed by a general increase from 1996 to 1998. During the interval 1999 to 2002, annual mean K values appear relatively stable and show little variation, with values...
Categories: Publication; Types: Citation; Tags: GEOLOGY, Human Health
In the north, the presence of mercury (Hg) in food leading to chronic exposure is a scientific, economic and political issue. Guidelines have been established for the safe consumption of fish containing Hg, however, adherence to these guidelines must be weighed against the health benefits of consuming fish, such as from the omega-3 polyunsaturated fatty acids, vitamins and minerals. Alaskan Natives generally consume much more fish than the national average. This review summarizes and synthesizes the significant amount of data that has been generated on Hg in Alaska fish, particularly those consumed by Alaskans. Also included are a review of the benefits of eating fish, human health concerns relating to Hg toxicity...
Categories: Publication; Types: Citation; Tags: Human Health, M1-Fish
Regulatory, political, and institutional barriers have prevented broader use of rapid, simple, and inexpensive microbiological tests for Escherichia coli. By permitting greater use of chromogenic microbiological methods for compliance requirements by trained and certified operators of smaller public water systems, the cost of compliance should remain the same or decrease than when using distant laboratories. In fact, the lower cost of such methods would allow more frequent testing. New microbial methods allow greater public health protection because they are more sensitive to smaller amounts of contaminants in addition to allowing faster turnaround times--which would allow faster notification to the public. This...
Categories: Publication; Types: Citation; Tags: Human Health
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Description of Work Jeorse Park Beach is located in East Chicago, Indiana, within the Grand Calumet River Area of Concern (AOC), which has been identified as having all 14 beneficial use designations impaired, including beach closings. Jeorse Park Beach has been identified as one of the most highly contaminated beaches in the nation, with annual beach closings due to bacterial contamination as high as 76% in 2010. Further, beach closings have steadily increased each year since beach monitoring was initiated in 2005 in response to the Beaches Environmental and Coastal Health (BEACH) Act. Beach closings represent an environmental, social, and economic burden, the alleviation of which require various remediation strategies...
In a temperate glacier there are typically one to several meltwater reservoirs affecting the shape and timing of the glacier's meltwater hydrograph. This study applies recessional analysis to define the number of meltwater reservoirs at the Matanuska Glacier, a large valley glacier (379km super(2)) in south-central Alaska with a relatively long discharge record (1995-2002). Three meltwater reservoirs were identified with mean residence times ( K) of 21.0, 37.1 and 88.8 hours. Annual mean K values show a significant drop to their lowest values in 1996, followed by a general increase from 1996 to 1998. During the interval 1999 to 2002, annual mean K values appear relatively stable and show little variation, with values...
Categories: Publication; Types: Citation; Tags: GEOLOGY, Human Health
In June 2004, we made snow pit studies and radio-echo soundings to seek ice core drilling sites on Mt. McKinley (63 degree N, 151 degree W, 6194 m a. s. L), Alaska. Pit studies at Denali Pass (5560 m a. s. l.) and Medical Camp (4350 m a. s. l.) show high-density layers near surface. These layers seem to relate with strong wind. From the comparison of the observed temperatures at the pits and temperatures at other ice coring sites in Alaska and Yukon, we suppose that no significant melting occurs at observed sites. Radio-echo soundings show that the ice thicknesses at High Camp (5220 m a. s. l.) and Denali Pass are 46-48 m and 60-67 m, respectively. Although we have a little information about accumulation rates,...
Categories: Publication; Types: Citation; Tags: GEOLOGY, Human Health
We measured the surface velocity field during the summers of 1999 and 2000 on the 7 km long, 185 m thick Bench Glacier, Alaska, USA. In the spring of both years, a short-lived pulse of surface velocity, 2-4 times the annual mean velocity, propagated up-glacier from the terminus at a rate of similar to 200-250 m d super(-1). Displacement attributable to rapid sliding is similar to 5-10% of the annual surface motion, while the high-velocity event comprised 60-95% of annual basal motion. Sliding during the propagating speed-up event peaked at 6-14 cm super(-1), with the highest rates in mid-glacier. Continuous horizontal and vertical GPS measurements at one stake showed divergence and then convergence of the ice surface...
Categories: Publication; Types: Citation; Tags: GEOLOGY, Human Health
In a temperate glacier there are typically one to several meltwater reservoirs affecting the shape and timing of the glacier's meltwater hydrograph. This study applies recessional analysis to define the number of meltwater reservoirs at the Matanuska Glacier, a large valley glacier (379km super(2)) in south-central Alaska with a relatively long discharge record (1995-2002). Three meltwater reservoirs were identified with mean residence times ( K) of 21.0, 37.1 and 88.8 hours. Annual mean K values show a significant drop to their lowest values in 1996, followed by a general increase from 1996 to 1998. During the interval 1999 to 2002, annual mean K values appear relatively stable and show little variation, with values...
Categories: Publication; Types: Citation; Tags: GEOLOGY, Human Health
In June 2004, we made snow pit studies and radio-echo soundings to seek ice core drilling sites on Mt. McKinley (63 degree N, 151 degree W, 6194 m a. s. L), Alaska. Pit studies at Denali Pass (5560 m a. s. l.) and Medical Camp (4350 m a. s. l.) show high-density layers near surface. These layers seem to relate with strong wind. From the comparison of the observed temperatures at the pits and temperatures at other ice coring sites in Alaska and Yukon, we suppose that no significant melting occurs at observed sites. Radio-echo soundings show that the ice thicknesses at High Camp (5220 m a. s. l.) and Denali Pass are 46-48 m and 60-67 m, respectively. Although we have a little information about accumulation rates,...
Categories: Publication; Types: Citation; Tags: GEOLOGY, Human Health
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Groundwater and surface-water samples were collected and analyzed for microbial source tracking markers to identify the primary sources of fecal bacteria at a Lake Michigan beach in Northwestern Indiana.
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The overarching project goal was to develop overlapping conceptual models of environmental and community health indicators in reference to climate forecasts. The sensitivity of species and habitats to climate was cross-walked with recently developed Coast Salish community health indicators (e.g., ceremonial use, knowledge exchange, and physiological well-being) in order to demonstrate how Indigenous Knowledge can be used in conjunction with established landscape-level conservation indicators (e.g., shellfish and water-quality) and employed to identify resource management priorities. Project products included: (1) maps and models that highlight potential impacts in regard to Swinomish first foods and cultural sites;...
In the north, the presence of mercury (Hg) in food leading to chronic exposure is a scientific, economic and political issue. Guidelines have been established for the safe consumption of fish containing Hg, however, adherence to these guidelines must be weighed against the health benefits of consuming fish, such as from the omega-3 polyunsaturated fatty acids, vitamins and minerals. Alaskan Natives generally consume much more fish than the national average. This review summarizes and synthesizes the significant amount of data that has been generated on Hg in Alaska fish, particularly those consumed by Alaskans. Also included are a review of the benefits of eating fish, human health concerns relating to Hg toxicity...
Categories: Publication; Types: Citation; Tags: Human Health, M1-Fish
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Chemical and microbiological results, quality assurance and quality control, site location, and method information for surface water, bed sediment, and wastewater effluent collected from 34 stream locations across Iowa (United States). Environmental samples were analyzed for a suite of 29 antibiotics, plated on selective media for 15 types of bacteria growth, and DNA was extracted from culture growth and used in downstream polymerase chain reaction (PCR) assays for the detection of 24 antibiotic resistance genes. Environmental field data were collected in-situ for water temperature (°C), specific conductivity (µs/cm), dissolved oxygen (mg/L), pH (standard units), and turbidity (FNU) using a multiparameter sonde...


map background search result map search result map Understanding the Interactions Between Human Health, Environment, and Climate in Salish Sea Communities Jeorse Park Beach Contamination North by 2020: perspectives on Alaska's changing social-ecological systems Environmental and Quality-Control Data Collected by the USGS National Water-Quality Assessment Project for Hormones and Pharmaceuticals in Groundwater Used as a Source of Drinking Water Across the United States, 2013-15 Microbial Source Tracking at Whihala Beach West in Whiting, Indiana, 2018 Antibiotic and Antibiotic Resistance Signatures in Iowa Streams, 2019 Microbial Source Tracking at Whihala Beach West in Whiting, Indiana, 2018 Understanding the Interactions Between Human Health, Environment, and Climate in Salish Sea Communities Jeorse Park Beach Contamination Antibiotic and Antibiotic Resistance Signatures in Iowa Streams, 2019 North by 2020: perspectives on Alaska's changing social-ecological systems Environmental and Quality-Control Data Collected by the USGS National Water-Quality Assessment Project for Hormones and Pharmaceuticals in Groundwater Used as a Source of Drinking Water Across the United States, 2013-15