Mercury speciation, bioavailability, and biomagnification in contaminated streams on the Savannah River Site (SC, USA)
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چکیده
منابع مشابه
Modeling mercury biomagnification (South River, Virginia, USA) to inform river management decision making.
Mercury trophic transfer in the South River (VA, USA) was modeled to guide river remediation decision making. Sixteen different biota types were collected at six sites within 23 river miles. Mercury biomagnification was modeled using a general biomagnification model based on delta(15)N and distance from the historic mercury release. Methylmercury trophic transfer was clearer than that for total...
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Average methylmercury levels in five Savannah River tributary streams, sampled 11 times over 2 years (0.170 ng/l), were nearly twice as high as in the Savannah River (0.085 ng/l). Total mercury levels in the tributaries (2.98 ng/l) did not differ significantly from the river (2.59 ng/l). All of the tributaries drained extensive wetlands that would be expected to support comparatively high rates...
متن کاملThe speciation and bioavailability of mercury in sediments of Haihe River, China.
Twenty-one sediment samples in 11 sites along the Haihe River and Dagu Drainage River, Tianjin, China, were analyzed to investigate the pollution status and bioavailability of mercury (Hg). The results showed that the Haihe River was slightly polluted with Hg when flowing through Tianjin city. On the contrary, the sediments collected from Dagu Drainage River, an important drainage river in Tian...
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129I is a major by-product of nuclear fission that is of concern because of its extremely long half-life (~16 million yrs), perceived toxicity through bioaccumulation, and the increasing inventory of this radionuclide worldwide. Relatively high concentrations of iodate (27.3%) and organoiodine (23.9%) are present in a 129I-conatminated aquifer at the Savannah River Site (SRS), SC, U.S.A. To det...
متن کاملMercury speciation, reactivity, and bioavailability in a highly contaminated estuary, Berry's Creek, New Jersey Meadowlands.
Speciation and reactivity of mercury were examined in Berry's Creek estuary downstream of a highly mercury-contaminated U.S. EPA Superfund site during the summers of 2002 and 2003. Surface water samples from Berry's Creek estuary, its confluence with the Hackensack River, and upstream of that confluence were analyzed for total (THg), particulate (PHgT), and dissolved (DHg) mercury, total and pa...
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ژورنال
عنوان ژورنال: Science of The Total Environment
سال: 2019
ISSN: 0048-9697
DOI: 10.1016/j.scitotenv.2019.02.301