Accumulation of flame retardants in paired eggs and plasma of bald eagles

Guo, Junmeng; Simon, Kendall L.; Romanak, Kevin; Venier, Marta

doi:10.1016/j.envpol.2018.02.056

Cited by 25 publications

(18 citation statements)

References 46 publications

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“…This was on the same order of magnitude as that found in herring gull plasma (2.50 ng/g ww) 36 and bald eagle plasma (6.14 ng/g ww). 37 However, the OPEs in the blood meal presented here were much lower than those in a human serum study, which reported Σ 6 OPEs to be 680 ng/g lipid in 2011 and 709 ng/g lipid in 2015, respectively. 38 This difference could be due to the species-specific accumulation ability, exposure sources and chemical physicochemical properties.…”

Section: Feather Mealcontrasting

confidence: 68%

“…40 TCIPP was the dominant compound that contributed 39.5% to the Σ 16 OPEs in blood meal, followed by TEP (25.5%), TiBP (11.3%), TCEP (9.04%), and TMP (5.84%). TCIPP was also the dominant contributor in bald eagle plasma from the Great Lakes, 37 and it was one of the two detected OPEs in white-tailed eagle blood from Norway. 30 The TCIPP concentration in blood meal (11.0 ng/g dw) was also at comparable levels with these two studies (2.98 and 0.22 ng/ g ww, respectively).…”

Section: Feather Mealmentioning

confidence: 99%

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Animal-Derived and Plant-Derived Protein Supplement Feeds Are Important Sources of Organophosphate Esters in the Food Supply

Zhao

Liu

et al. 2020

J. Agric. Food Chem.

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Animal protein supplement feeds (APFs) are important raw feed materials for livestock. APFs might be susceptible to organophosphate esters (OPEs) but have not been paid attention yet. In the present study, animal-derived (meat meal, feather meal, and blood meal) and plant-derived APFs were all found to contain detectable levels of OPEs, with 16 target OPEs ranging from 12.6 ng/g dry weight (dw) to 301 ng/g dw. Meat meal contained the highest OPE level (mean: 117 ± 75.6 ng/g dw), followed by feather meal (54.6 ± 30.0 ng/g dw), plant-derived feed (41.9 ± 16.0 ng/g dw), and blood meal (28.0 ± 12.0 ng/g dw). Considering its widespread consumption, plant-derived APFs might be an important source of OPE exposure for livestock. Dust adhesion contributed to OPE contamination both in feather meal and plant-derived APFs. Congener patterns varied among the different APFs. Tris(2-chloroisopropyl) phosphate dominated in the plant-derived feed and blood meal, while tris(2-chloroethyl) phosphate and triphenyl phosphate were the major contributors in meat meal and feather meal, respectively. Tributyl phosphate and tri-iso-butyl phosphate were found to be statistically correlated in all APFs (p < 0.01), indicating their similar behavior and common sources. The protein-associated transport pathways of OPEs need to be studied separately for different protein matrices in the future.

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Section: Feather Mealcontrasting

confidence: 68%

Section: Feather Mealmentioning

confidence: 99%

Animal-Derived and Plant-Derived Protein Supplement Feeds Are Important Sources of Organophosphate Esters in the Food Supply

Zhao

Liu

et al. 2020

J. Agric. Food Chem.

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“…The inverse relationship between plasma legacy OHC concentrations and age at sampling found in the present study was in accordance with previous reports for CB 153 and p,p'-DDE in plasma of white-tailed eagle nestlings (Bustnes et al, 2013), plasma levels of PCBs and PBDEs in great tit (Parus major) nestlings (Dauwe et al, 2006) and liver concentrations of PCBs, p,p'-DDE and HCB in European shag (Phalacrocorax aristotelis) nestlings (Jenssen et al, 2010;Murvoll et al, 2006). In contrast, a previous study on white-tailed eagle nestlings did not find decreased PCB or p,p'-DDE concentrations in plasma of older nestlings (Olsson et al, 2000), neither did a study of PBDEs in plasma of bald eagle (Haliaeetus leucocephalus) nestlings (Guo et al, 2018). The nestlings from the present study were on average 69 days old (range: 44e87 days old), while most of the nestlings from Olsson et al (2000) were less than 57 days old (range: < 36e57 days old).…”

Section: Legacy Ohc Variationmentioning

confidence: 79%

“…The nestlings from the present study were on average 69 days old (range: 44e87 days old), while most of the nestlings from Olsson et al (2000) were less than 57 days old (range: < 36e57 days old). The nestlings investigated in Guo et al (2018) were on average 46 days old (range: 28e56 days old). The significant effect of age in the present study may be due to the greater age span, larger sample size and homogenous age classes of the nestlings.…”

Section: Legacy Ohc Variationmentioning

confidence: 99%

“…Even though nestlings are continuously exposed to OHCs through their diet, a study on experimental feeding of great skua chicks (Stercorarius skua) found that their contaminant load was more influenced by maternal than trophic transfer regardless of diet (Bourgeon et al, 2013). A study of paired egg and plasma samples of bald eagles from the Great Lakes between 2000 and 2012 found that egg concentrations of PBDEs were over 30 times higher than the plasma concentrations of nestlings from the same nests (Guo et al, 2018). Nygård and Polder (2012) also found very high concentrations of PCBs (mean: 2839 ng/g fresh weight (fw)) and p,p'-DDE (mean: 950 ng/g fw) in white-tailed eagle eggs sampled in Norway between 2005 and 2010.…”

Section: Legacy Ohc Variationmentioning

confidence: 99%

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Plasma concentrations of organohalogenated contaminants in white-tailed eagle nestlings – The role of age and diet

Løseth

Briels

Eulaers

et al. 2019

Environmental Pollution

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Concentrations of organohalogenated contaminants (OHCs) can show significant temporal and spatial variation in the environment and wildlife. Most of the variation is due to changes in use and production, but environmental and biological factors may also contribute to the variation. Nestlings of top predators are exposed to maternally transferred OHCs in the egg and through their dietary intake after hatching. The present study investigated spatial and temporal variation of OHCs and the role of age and diet on these variations in plasma of Norwegian white-tailed eagle (Haliaeetus albicilla) nestlings. The nestlings were sampled at two locations, Smøla and Steigen, in 2015 and 2016. The age of the nestlings was recorded (range: 44 e 87 days old) and stable carbon and nitrogen isotopes (d 13 C and d 15 N) were applied as dietary proxies for carbon source and trophic position, respectively. In total, 14 polychlorinated biphenyls (PCBs, range: 0.82 e 59.05 ng/mL), 7 organochlorinated pesticides (OCPs, range: 0.89 e 52.19 ng/ mL), 5 polybrominated diphenyl ethers (PBDEs, range: 0.03 e 2.64 ng/mL) and 8 perfluoroalkyl substances (PFASs, range: 4.58 e 52.94 ng/mL) were quantified in plasma samples from each location and year. The OHC concentrations, age and dietary proxies displayed temporal and spatial variations. The age of the nestlings was indicated as the most important predictor for OHC variation as the models displayed significantly decreasing plasma concentrations of PCBs, OCPs, and PBDEs with increasing age, while concentrations of PFASs were significantly increasing with age. Together with age, the variations in PCB, OCP and PBDE concentrations were also explained by d 13 C and indicated decreasing concentrations with a more marine diet. Our findings emphasise age and diet as important factors to consider when investigating variations in plasma OHC concentrations in nestlings.

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Trends and Patterns of Perfluoroalkyl Substances in Blood Plasma Samples of Bald Eagle Nestlings in Wisconsin and Minnesota, USA

Dykstra¹,

Route

Williams

2020

Enviro Toxic and Chemistry

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We analyzed concentrations and trends of perfluoroalkyl substances (PFAS) in blood plasma samples of bald eagle (Haliaeetus leucocephalus) nestlings at 6 study areas in the upper Midwest of the United States, 2006 to 2015, and long-term trends at 2 Lake Superior (USA/Canada) sites, 1995 to 2015. Nestling blood plasma concentrations of the sum of 15 PFAS analytes (∑PFAS) differed among study areas and were highest at the 3 industrialized river sites: pools 3 and 4 of the Mississippi River (pools 3 + 4; geometric mean [GM] = 754 μg/L; range = 633-2930), the Mississippi National River and Recreational Area (GM = 687 μg/L; range = 24-7371), and the lower St. Croix National Scenic Riverway (GM = 546 μg/L; range = 20-2400). Temporal trends in ∑PFAS in nestling plasma differed among study areas; concentrations decreased at pools 3 + 4, Mississippi National River and Recreational Area, and lower St. Croix National Scenic Riverway, but not at the most remote sites, the upper St. Croix River and Lake Superior. Overall, perfluorooctanesulfonate (PFOS) was the most abundant analyte at all study areas, and perfluorodecanesulfonate (PFDS) the second most abundant at industrialized river sites although not at Lake Superior; concentrations of both these analytes declined from 2006 to 2015 over the study area. In addition, nestling age significantly influenced plasma concentrations of ∑PFAS and 7 of the 12 analytes. For these analytes, concentrations increased by 1 to 2%/d as nestlings grew, indicating that age should be considered when using nestling plasma to assess PFAS.

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Accumulation of flame retardants in paired eggs and plasma of bald eagles

Cited by 25 publications

References 46 publications

Animal-Derived and Plant-Derived Protein Supplement Feeds Are Important Sources of Organophosphate Esters in the Food Supply

Animal-Derived and Plant-Derived Protein Supplement Feeds Are Important Sources of Organophosphate Esters in the Food Supply

Plasma concentrations of organohalogenated contaminants in white-tailed eagle nestlings – The role of age and diet

Trends and Patterns of Perfluoroalkyl Substances in Blood Plasma Samples of Bald Eagle Nestlings in Wisconsin and Minnesota, USA

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