Informace o publikaci

Current and historical concentrations of poly and perfluorinated compounds in sediments of the northern Great Lakes - Superior, Huron, and Michigan

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CODLING Garry Paul HOSSEINI Soheil CORCORAN Margaret B. BONINA Solidea LIN Tian LI An STURCHIO Neil C. ROCKNE Karl J. JI Kyunghee PENG Hui GIESY John P.

Rok publikování 2018
Druh Článek v odborném periodiku
Časopis / Zdroj Environmental Pollution
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Citace
www https://www.sciencedirect.com/science/article/pii/S0269749117309417?via%3Dihub
Doi http://dx.doi.org/10.1016/j.envpol.2018.01.065
Klíčová slova Core; Sediment; History; Distribution
Popis Current and historical concentrations of 22 poly- and perfluorinated compounds (PFASs) in sediment collected from Lake Superior and northern Lake Michigan in 2011 and Lake Huron in 2012 are reported. The sampling was performed in two ways, Ponar grabs of surface sediments for current spatial distribution across the lake and dated cores for multi-decadal temporal trends. Mean concentrations of the sum of PFASs (Sigma PFASs) were 1,5, 4.6 and 3.1 ng g(-1) dry mas (dm) in surface sediments for Lakes Superior, Michigan and Huron, respectively. Of the five Laurentian Lakes, the watersheds of Superior and Huron are the less densely populated by humans, and concentrations observed were typically less and from more diffuse sources, due to lesser urbanization and industrialization. However, some regions of greater concentrations were observed and might indicate more local, point sources. In core samples concentrations ranged from
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