Author: Publisher:
ISBN:
Category : Mercury
Languages : en
Pages : 42
Book Description
Preliminary Investigation of Mercury Content in Fish, Sediment and Water in Lake Oahe, S. Dak., to be Presented at Governors Conference on Mercury and Other Hazardous Materials in Waters of South Dakota, Oct. 19-21, 1971
Author: Monthly Catalog, United States Public Documents
Author: United States. Superintendent of DocumentsPublisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1282
Book Description
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Preliminary Investigation of the Mercury Content in Fish, Sediment and Water in Lake Oahe, South Dakota
Author: United States. Environmental Protection Agency. Water Quality Office. Region VII.Publisher:
ISBN:
Category : Mercury
Languages : en
Pages : 44
Book Description
Monthly Catalog of United States Government Publications
Author: Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 2036
Book Description
Mercury Concentrations in Fish in Lake Oahe, South Dakota, April 16 to September 27, 1972
Author: Mercury in Fish, Bed Sediment, and Water from Streams Across the United States, 1998-2005
Author: Mercury in Fish, Bed Sediment, and Water from Streams Across the United States, 1998-2005
Author: Barbara C. ScudderPublisher: DIANE Publishing
ISBN: 1437921132
Category : Science
Languages : en
Pages : 86
Book Description
Report on how mercury (Hg) was examined in top-predator fish, bed sediment, and water from streams that spanned regional and national gradients of Hg source strength and other factors thought to influence methylmercury bioaccum. Sampled settings include stream basins that were agr¿l, urbanized, undeveloped, and mined. Predator fish were targeted for collection, and composited samples of fish were analyzed for total Hg (THg), as most of the Hg found in fish tissue is MeHg. Samples of bed sediment and stream water were analyzed for THg, MeHg, and characteristics thought to affect Hg methylation, such as loss-on-ignition and acid-volatile sulfide in bed sediment, and pH, dissolved organic carbon, and dissolved sulfate in water. Illus.
Relations Between Water Quality and Mercury Fish Tissue Concentrations for Natural Lakes and Impoundments in South Dakota
Author: Cindie McCutcheonPublisher:
ISBN:
Category :
Languages : en
Pages : 94
Book Description
South Dakota has six lakes and impoundments that exceed mercury fish tissue advisory limits of 1.0 mg kg−1 for consumption. According to the Environmental Protection Agency (EPA), United States fish consumption limits should be at a much lower 0.3 mg kg−1. This study determined water quality parameters that are capable of predicting whether water bodies will have mercury fish tissue concentrations exceeding EPA's threshold fish consumption advisory limit of 0.3 mg kg−1 mercury by statistically comparing mercury fish tissue concentrations to water quality parameters. Phosphorus, alkalinity, pH, DOC, and sulfur have been shown through past studies to influence mercury fish tissue concentration. These water quality parameters, as well as others were collected from the South Dakota Department of Environmental and Natural Resources. (SD DENR). Mercury fish tissue data were collected by the South Dakota Game Fish and Parks (SD GFP). Statistical analyses employed included linear regression, boxplots, binary logistic regression, Akaike's Information Criterion, and stepwise logistic regression. Significant water quality parameters predicting increased mercury concentrations of northern pike in impoundments were phosphorus and pH. For northern pike in natural lakes for this study concluded that alkalinity was the most significant water quality parameter predicting increased mercury concentrations. Mercury concentrations in walleye in natural lakes were influenced by pH and alkalinity.
Investigation of Mercury in the St. Clair River-Lake Erie Systems
Author: United States. Federal Water Quality AdministrationPublisher:
ISBN:
Category : Mercury
Languages : en
Pages : 240
Book Description
Mercury in Finnish Forest Lakes and Reservoirs
Author: Matti VertaPublisher:
ISBN:
Category : Fishes
Languages : en
Pages : 40
Book Description
Paper summarizing results and estimating levels of mercury (Hg) contamination in Finnish lakes and rivers resulting from human activity, contamination of fish and possible measures for lowering fish Hg.