Tissue Distribution and Whole Body Burden of the Chlorinated Polyfluoroalkyl Ether Sulfonic Acid F-53B in Crucian Carp (Carassius carassius): Evidence for a Highly Bioaccumulative Contaminant of Emerging Concern

Tissue Distribution and Whole Body Burden of the Chlorinated Polyfluoroalkyl Ether Sulfonic Acid F-53B in Crucian Carp (Carassius carassius) : Evidence for a Highly Bioaccumulative Contaminant of Emerging Concern

Following the global actions to phase out perfluoroctanesulfonic acid (PFOS) a large number of alternative per- and polyfluoroalkyl substances, with poorly defined hazard properties, are being used in increasing quantities. Here, we report on the first detection of the chlorinated polyfluoroalkyl ether sulfonic acid F-53B in biological samples and determine the tissue distribution and whole body bioaccumulation factors (BAF(whole body)) in crucian carp (Carassius carassius). Analysis of fish samples from Xiaoqing River (XR) and Tangxun Lake (TL) demonstrated a similar level of F-53B contamination with median concentrations in blood of 41.9 and 20.9 ng/g, respectively. Tissue/blood ratios showed that distribution of F-53B primarily occurs to the kidney (TL: 0.48, XR: 0.54), gonad (TL: 0.36, XR: 0.54), liver (TL: 0.38, XR: 0.53), and heart (TL: 0.47, XR: 0.47). Median Log BAF(whole body) values for F-53B (XR: 4.124, TL: 4.322) exceeded regulatory bio accumulation criterion and were significantly higher than those of PFOS in the same data sets (XR: 3.430, TL: 3.279). On the basis of its apparent omnipresence and strong bioaccumulation propensity, it is hypothesized that F-53B could explain a significant fraction of previously unidentified organofluorine in biological samples from China, and regulatory actions for this compound are encouraged.

Vestergren, RobinStockholms universitet,Institutionen för miljövetenskap och analytisk kemi(Swepub:su)rove0027 (författare)
Zhou, Zhen (författare)
Song, Xiaowei (författare)
Xu, Lin (författare)
Liang, Yong (författare)
Cai, Yaqi (författare)
Stockholms universitetInstitutionen för miljövetenskap och analytisk kemi (creator_code:org_t)

Ingår i:Environmental Science and Technology: American Chemical Society (ACS)49:24, s. 14156-141650013-936X1520-5851

Av författaren/redakt...: Shi, Yali; Vestergren, Robi ...; Zhou, Zhen; Song, Xiaowei; Xu, Lin; Liang, Yong; visa fler...; Cai, Yaqi; visa färre...

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