Estimating sediment quality thresholds to prevent restrictions on fish consumption: Application to polychlorinated biphenyls and dioxins-furans in the Canadian Great Lakes

2010 ◽  
Vol 6 (4) ◽  
pp. 641-652 ◽  
Author(s):  
Satyendra P Bhavsar ◽  
Sarah B Gewurtz ◽  
Paul A Helm ◽  
Tanya L Labencki ◽  
Christopher H Marvin ◽  
...  
Keyword(s):  
Polychlorinated Biphenyls ◽  
Great Lakes ◽  
Fish Consumption ◽  
Sediment Quality

Assessing Contamination in Great Lakes Sediments Using Benthic Invertebrate Communities and the Sediment Quality Triad Approach

1996 ◽  
Vol 22 (3) ◽  
pp. 565-583 ◽  
Author(s):  
Timothy J. Canfield ◽  
F. James Dwyer ◽  
James F. Fairchild ◽  
Pamela S. Haverland ◽  
Christopher G. Ingersoll ◽  
...  
Keyword(s):  
Great Lakes ◽  
Sediment Quality ◽  
Benthic Invertebrate ◽  
Sediment Quality Triad ◽  
Invertebrate Communities ◽  
Benthic Invertebrate Communities

Relationship of serum levels of individual PCB, dioxin, and furan congeners and DDE with Great Lakes sport-caught fish consumption

2006 ◽  
Vol 100 (2) ◽  
pp. 173-183 ◽  
Author(s):  
Mary Turyk ◽  
Henry A. Anderson ◽  
Lawrence P. Hanrahan ◽  
Claire Falk ◽  
Dyan N. Steenport ◽  
...  
Keyword(s):  
Great Lakes ◽  
Fish Consumption ◽  
Serum Levels ◽  
Relationship Of

Neuropsychological Assessment of an Aging Population of Great Lakes Fisheaters

1996 ◽  
Vol 12 (3-4) ◽  
pp. 403-417 ◽  
Author(s):  
Susan L. Schantz ◽  
Anne M. Sweeney ◽  
Joseph C. Gardiner ◽  
Harold E.B. Humphrey ◽  
Robert J. McCaffrey ◽  
...  
Keyword(s):  
Great Lakes ◽  
Motor Function ◽  
Neuropsychological Assessment ◽  
Fish Consumption ◽  
Activity Level ◽  
Neurological Dysfunction ◽  
Coplanar Pcbs ◽  
Assessment Battery ◽  
Age Related ◽  
Pcb Exposure

Because of the decline in central nervous system function that occurs with age, older people may be at greater risk of neurological dysfunction following exposure to neurotoxic contaminants in the environment. This study wasdesigned to assess the neuropsychological functioning of a group of 50-90- year-old fisheaters exposed to polychlorinated biphenyls (PCBs) through Great Lakes fish consumption, and a group of age- and sex-matched nonfisheaters selectedfrom the Michigan Department of Public Health's established cohort of fisheaters and nonfisheaters. A neuropsychological assessment battery, demographic interview, and fish consumption questionnaire were developed and piloted on similarly aged men and women in the Lansing and Detroit, Michigan, areas. The assessment battery included tests of motor function, memory and learning, executive functions, and visual-spatial functions, and took approximately two hours to administer. Most of the tests included in the battery have been shown to be sensitive to subtle, age-related declines in cognitive and motor function. The demographic questionnaire included questions on a number of important control variables that could influence the neuropsychological end points that were assessed in the study. These included demographic background, alcohol consumption, tobacco use, prescription and nonprescription drug use, medical history (including psychiatric illnesses), employment history, and activity level. The fish consumption questionnaire asked about historical and current consumption of specific fish species from each of the Great Lakes and its tributaries and was based on the fish consumption advisories published in the 1992 Michigan Fishing Guide. The questionnaire also asked about consumption of wild game, fish preparation and cooking methods, serving size, and changes in fish consumption patterns over time. After each subject completed the neuropsychological assessment, demographic interview, and fish consumption questionnaire, a blood sample was collected for analysis of PCBs, dichloro diphenyl dichloroethene (DDE), and ten other contaminants frequently detected in Great Lakes fish. Subject recruitment for the study began in July 1993 and was completed in November 1995. The data will be analyzed in two steps: first, to assess differences in confounding variables between fisheaters and nonfisheaters; and secondly, to determine the independent effects of Great Lakes fish consumption, as well as serum PCB and DDE levels, on cognitive and motor function after controlling for all identified covariates. Three indices of PCB exposure—total PCBs, total ortho-substituted PCBs and total coplanar PCBs—will be assessed. These studies should shed light on three questions: 1) Does consumption of contaminated fish from the Great Lakes exacerbate or accelerate the normal age-related decline in cognitive and motor function? 2) Do serum PCB or DDE concentrations predict the degree of behavioral dysfunction? and 3) If PCB exposure is related to behavioral outcomes, which class of PCB congeners, ortho-substituted or coplanar, are responsible for the cognitive and motor deficits?

Fish consumption among women anglers of childbearing age in the Great Lakes region

2016 ◽  
Vol 150 ◽  
pp. 213-218 ◽  
Author(s):  
Nancy A. Connelly ◽  
T. Bruce Lauber ◽  
Jeff Niederdeppe ◽  
Barbara A. Knuth
Keyword(s):  
Great Lakes ◽  
Fish Consumption ◽  
Great Lakes Region ◽  
Childbearing Age

Percentage land use in the watershed determines the water and sediment quality of 22 marshes in the Great Lakes basin

1999 ◽  
Vol 56 (10) ◽  
pp. 1781-1791 ◽  
Author(s):  
Barb Crosbie ◽  
Patricia Chow-Fraser
Keyword(s):  
Land Use ◽  
Great Lakes ◽  
Best Management Practices ◽  
Agricultural Land ◽  
Sediment Quality ◽  
Soluble Reactive Phosphorus ◽  
Agricultural Runoff ◽  
Water And Sediment ◽  
Water And Sediment Quality

Data from 22 Ontario marshes were used to test the hypothesis that distribution of forested, agricultural, and urban land in the watershed determines the water and sediment quality of Great Lakes wetlands. The first three components of the principal components analysis explained 82% of the overall variation. PC1 ordinated wetlands along a trophic gradient; species richness of submergent vegetation decreased with PC1 scores. PC2 reflected the content of inorganic solids and phosphorus in sediment and the ionic strength of the water. Both PC1 and PC2 scores were positively correlated with percent agricultural land, whereas PC1 scores were negatively correlated with forested land. Correlation between PC1 and agricultural land improved when best-management practices were considered. Accounting for common carp (Cyprinus carpio) disturbance did not confound the relationship between land use and water quality. PC3, driven by soluble reactive phosphorus and nitrate nitrogen concentration in the water, was not correlated with land use. Concentrations of polycyclic aromatic hydrocarbons and Metolachlor were correlated with urban and agricultural land, respectively, and may be useful as land use surrogates. Watershed management favouring the retention of forested land, or creation of buffer strips to trap agricultural runoff in the drainage basin, should help maintain aquatic plant diversity in coastal wetlands.

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