Spatial and temporal trends of poly‐ and perfluoroalkyl substances in fish fillets and water collected from pool 2 of the Upper Mississippi River

Abstract

In 2011, poly- and perfluoroalkyl substances (PFASs) were analyzed in surface water and fish fillet samples taken from Pool 2 of the Upper Mississippi River, a 33-mile stretch inclusive of the Minneapolis/St. Paul, Minnesota (USA) metropolitan area. Approximately 100 each of bluegill, freshwater drum, smallmouth bass, and white bass were sampled within the study area. Surface water samples were also collected from each of the 10 sampling reaches established for the study. Water and fillet samples were analyzed for perfluorinated carboxylic acids (C4-C12), perfluorinated sulfonic acids (C4, C6, and C8), and perfluorooctane sulfonamide. Perfluorooctane sulfonate (PFOS) was observed with the greatest frequency in fish fillets and ranged from 3.0 to 760 ng/g wet weight. Mean (geometric) PFOS concentrations in bluegill, freshwater drum, smallmouth bass, and white bass were 20, 28, 29, and 58 ng/g wet weight, respectively. When compared with fish data collected in 2009, a significant reduction (p < 0.05) in PFOS concentrations was noted. This finding was confirmed based on data from studies conducted in 2012 and 2013. Overall, between 2009 and 2013, PFOS concentrations decreased by 65, 76, and 50% for bluegill, freshwater drum, and white bass, respectively (44% decrease for smallmouth bass from 2009 to 2012). These declines in fish PFOS concentrations are consistent with ongoing efforts to effectively control sources of PFASs to the Mississippi River. Environ Toxicol Chem 2017;36:3138-3147. © 2017 SETAC.

Temporal Trends of Per‐ and Polyfluoroalkyl Substances in Delaware River Fish, USA

“…While nontidal species generally had lower concentration of PFAS when compared to tidal fish, the highest concentration of PFOS in the 4 species tested, at 48 ng/g in 2004 and 37 ng/g in 2018, were found in nontidal smallmouth bass (Supplemental Data Table S4). Smallmouth bass had a relatively high geometric mean for PFOS at 29 ng/g and the least change in concentration of the species tested in the Upper Mississippi River (Newsted et al 2017). The PFOS concentrations in fish fillet of the 4 species tested appear to be slowly decreasing (Figure 3 and Supplemental Data Table S5).…”

Occurrence of perfluoroalkyl substances in selected Victorian rivers and estuaries: An historical snapshot

“…Zhao et al., 2016), Germany (e.g. Möller et al., 2010), Japan (Ye et al., 2014), Korea (Lam et al., 2016), Norway (Kwok et al., 2013), and the USA (Newsted et al., 2017) (see Table 2a).…”

Divergent responsiveness of two isoforms of the estrogen receptor to mixtures of contaminants of emerging concern in four vertebrates

“…However, their effects as complex, environmentally relevant mixtures are poorly understood across vertebrate phylogeny. A wide variety of wildlife, including listed (e.g., threatened or endangered) species, have been experimentally exposed to CECs, and the consequences of exposures to reproductive function have been documented in various species including teleost fishes (Clement, Reiner, & Bhavsar, ; Jorgenson, Buhl, Bartell, & Schoenfuss, ; Newsted et al, ; Stahl et al, ), American alligators (Bangma et al, ) and humans (Casas et al, ; D’Hollander, de Voogt, De Coen, & Bervoets, ). Although it has been documented that species are being exposed and have the potential to bioaccumulate CECs, information is limited relating exposure to effects in wildlife, particularly listed species.…”