Výsledky vyhledávání - "John A Colman"

Mercury in Pacific bluefin tuna (Thunnus orientalis): bioaccumulation and trans-Pacific Ocean migration

Autor: John A. Colman, Carol A. Batdorf, Jacob I. NogueiraJ.I. Nogueira, Barbara A. Block, Oscar C. Pancorbo

Publikováno v: Canadian Journal of Fisheries and Aquatic Sciences. 72:1015-1023

Pacific bluefin tuna (Thunnus orientalis) have the largest home range of any tuna species and are well known for the capacity to make transoceanic migrations. We report the measurement of mercury (Hg) concentrations in wild Pacific bluefin tuna (PBFT

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::927a6364826ead19321e304a444c928a
https://doi.org/10.1139/cjfas-2014-0476

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Determination of dilution factors for discharge of aluminum-containing wastes by public water-supply treatment facilities into lakes and reservoirs in Massachusetts

Autor: Sara L. Brandt, John A. Colman, Andrew J. Massey

Publikováno v: Scientific Investigations Report.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a707f175576b538264779e159620a31c
https://doi.org/10.3133/sir20115136

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Mercury Sources to Lake Ozette and Lake Dickey: Highly Contaminated Remote Coastal Lakes, Washington State, USA

Autor: John A. Colman, Michael H. Bothner, Chad V. Furl

Publikováno v: Water, Air, and Soil Pollution. 208:275-286

Mercury concentrations in largemouth bass and mercury accumulation rates in age-dated sediment cores were examined at Lake Ozette and Lake Dickey in Washington State. Goals of the study were to compare concentrations in fish tissues at the two lakes

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::72eed3820ef15bdfc14aef1ffc54f75a
https://doi.org/10.1007/s11270-009-0165-y

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Transient Simulations of Nitrogen Load for a Coastal Aquifer and Embayment, Cape Cod, MA

Autor: John P. Masterson, John A. Colman

Publikováno v: Environmental Science & Technology. 42:207-213

A time-varying, multispecies, modular, three-dimensional transport model (MT3DMS) was developed to simulate groundwater transport of nitrogen from increasing sources on land to the shore of Nauset Marsh, a coastal embayment of the Cape Cod National S

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e5d8a6da39648df6bbfcea9185eb3725
https://doi.org/10.1021/es070638b

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Simulation of nitrogen attenuation in a subterranean estuary, representative of the southern coast of Cape Cod, Massachusetts

Autor: C. Robinson, Carl S. Carlson, John A. Colman

Publikováno v: Open-File Report.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::089bf3213ebc343eda073dda16bdd25f
https://doi.org/10.3133/ofr20151085

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Distribution, hydrologic transport, and cycling of total mercury and methyl mercury in a contaminated river-reservoir-wetland system (Sudbury River, eastern Massachusetts)

Autor: Robert F. Breault, Marcus C. Waldron, John A. Colman

Publikováno v: Canadian Journal of Fisheries and Aquatic Sciences. 57:1080-1091

Riparian wetlands contaminated with Hg from an industrial point source were found to be important sites of production and release of methyl mercury (MeHg) in a 40-km reach of the Sudbury River in eastern Massachusetts. Stream discharge and concentrat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::044af67d8527e98d0e1ae4e95c0339b2
https://doi.org/10.1139/f00-041

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Sampling for mercury at subnanogram per litre concentrations for load estimation in rivers

Autor: John A Colman, Robert F Breault

Publikováno v: Canadian Journal of Fisheries and Aquatic Sciences. 57:1073-1079

Estimation of constituent loads in streams requires collection of stream samples that are representative of constituent concentrations, that is, composites of isokinetic multiple verticals collected along a stream transect. An all-Teflon isokinetic s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2fe12aa4d3d8b94ed9e389ffcd0a73d9
https://doi.org/10.1139/f00-040

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Artifact formation of methyl mercury during aqueous distillation and alternative techniques for the extraction of methyl mercury from environmental samples

Autor: N. S. Bloom, Lee Barber, John A. Colman

Publikováno v: Fresenius' Journal of Analytical Chemistry. 358:371-377

Aqueous distillation as a pre-extraction step for monomethyl mercury (MMHg) in waters and sediments is the most common method because it eliminates negative interferences in the aqueous ethylation procedure. However, the distillation procedure genera

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::05caa770242aac0fa8783ea4faaf4550
https://doi.org/10.1007/s002160050432

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