Monitoring Temporal and Spatial Trends in Polychlorinated Dibenzo-p-dioxins (PCDDs) and Dibenzofurans (PCDFs) in Eggs of Great Blue Heron (Ardea herodias) on the Coast of British Columbia, Canada, 1983–1998

Elliott, John E.; Harris, Megan L.; Wilson, Laurie; Whitehead, Philip E.; Norstrom, Ross J.

doi:10.1639/0044-7447(2001)030[0416:mtasti]2.0.co;2

Cited by 22 publications

(27 citation statements)

References 33 publications

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“…Woodford et al (1998) indicated that the no-observable-adverse-effect concentration for osprey embryo survival was equal to or greater than 136 pg/g (ww) in eggs for the combined TEQ (PCB, PCDD, PCDF). Findings from Elliott et al (2001a) supported the 136 pg/g TEQ value in whole eggs suggested by Woodford et al (1998) for hatching in ospreys as a conservative estimate given the available data. Elliott et al (2001a) also found significant correlations between hepatic CYP1A protein concentrations of day-old osprey chicks and whole-egg TEQ concentrations and various PCB congeners.…”

Section: Pcb Pcdd and Pcdfsupporting

confidence: 77%

“…Findings from Elliott et al (2001a) supported the 136 pg/g TEQ value in whole eggs suggested by Woodford et al (1998) for hatching in ospreys as a conservative estimate given the available data. Elliott et al (2001a) also found significant correlations between hepatic CYP1A protein concentrations of day-old osprey chicks and whole-egg TEQ concentrations and various PCB congeners. They concluded that stereoisomers of TCDD (primarily PCB 126) induced production of hepatic CYP1A protein and EROD activity at a lowest observed effect/response concentration of 130 pg/g TEQ for day-old chicks.…”

Section: Pcb Pcdd and Pcdfsupporting

confidence: 77%

“…Several studies showed significant uptake of PCDD and PCDF in osprey eggs from nests downstream of kraft pulp mills compared to nests upstream (Whitehead et al, 1993(Whitehead et al, , 1995Elliott et al, 1998;Woodford et al, 1998). Egg concentrations of TCDD ranged from less than the detection limit to 162 pg/g (ww), with most studies reporting concentrations <100 pg/g TCDD (Whitehead et al, 1993(Whitehead et al, , 1995Augspurger et al, 1996;Elliott et al, 1998Elliott et al, , 2001aWoodford et al, 1998;Martin et al, 2003;Henny et al, 2003Henny et al, , 2008Jiménez et al, 2007). PCDD and PCDF concentrations reported did not appear to affect either osprey hatching success or fledging of young, although Woodford et al (1998) concentrations (TEQs), derived from toxic equivalency factors of select non-and mono-ortho PCB, PCDD, and PCDF based on their structural similarity and toxicity relative to TCDD, were also used to evaluate reproductive and biochemical endpoints for osprey eggs and young.…”

Section: Pcb Pcdd and Pcdfmentioning

confidence: 99%

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Osprey: Worldwide Sentinel Species for Assessing and Monitoring Environmental Contamination in Rivers, Lakes, Reservoirs, and Estuaries

Grove

Henny

Kaiser

2009

Journal of Toxicology and Environmental Health, Part B

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In the United States, many fish and wildlife species have been used nationwide to monitor environmental contaminant exposure and effects, including carcasses of the bald eagle (Haliaeetus leucocephalus), the only top avian predator regularly used in the past. Unfortunately, bald eagles are sensitive to investigator intrusion at the nest. Thus, the osprey (Pandion haliaetus) is evaluated as a potential sentinel species for aquatic ecosystems. Several characteristics support the choice of the osprey as a sentinel species, including: (1) fish-eating diet atop the aquatic food web, (2) long-lived with strong nest fidelity, (3) adapts to human landscapes (potentially the most contaminated), (4) tolerates short-term nest disturbance, (5) nests spatially distributed at regular intervals, (6) highly visible nests easily located for study, (7) ability to accumulate most, if not all, lipophilic contaminants, (8) known sensitivity to many contaminants, and (9) nearly a worldwide distribution. These osprey traits have been instrumental in successfully using the species to understand population distribution, abundance, and changes over time; the effects of various contaminants on reproductive success; how contaminants in prey (fish on biomass basis) contribute to egg concentrations (i.e., biomagnification factors); and spatial residue patterns. Data summarized include nesting population surveys, detailed nesting studies, and chemical analyses of osprey egg, organ, blood, and feather samples for contaminants that bioaccumulate and/or biomagnify in aquatic food webs; and biochemical evaluations of blood and various organs. Studies in the United States, Canada, Mexico, Europe, and elsewhere have shown the osprey to be a useful sentinel species for monitoring selected environmental contaminants, including some emerging contaminants in lakes, reservoirs, rivers, and estuaries.

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Section: Pcb Pcdd and Pcdfsupporting

confidence: 77%

Section: Pcb Pcdd and Pcdfsupporting

confidence: 77%

Section: Pcb Pcdd and Pcdfmentioning

confidence: 99%

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Osprey: Worldwide Sentinel Species for Assessing and Monitoring Environmental Contamination in Rivers, Lakes, Reservoirs, and Estuaries

Grove

Henny

Kaiser

2009

Journal of Toxicology and Environmental Health, Part B

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“…The great blue heron (Ardea herodias) has been widely used as an indicator species (DesGranges, 1979;Elliott et al, 1989Elliott et al, , 2001aCuster et al, 1997;Thomas and Anthony, 1999) because of its distribution in both marine and freshwater environments, the accessibility of its colonies and its strategic position at the top of the food chain. Between 1991 and 1993, we conducted studies to select indicators of exposure and effects of sublethal concentrations of contaminants in the St. Lawrence River in order to develop a biomarker-based biomonitoring program.…”

Section: Introductionmentioning

confidence: 99%

Contamination and Biomarkers in the Great Blue Heron, an Indicator of the State of the St. Lawrence River

Champoux¹,

Rodrigue²,

Trudeau

et al. 2006

Ecotoxicology

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In 1996-1997, nine breeding colonies of the great blue heron on the St. Lawrence River and its estuary (Québec, Canada) were investigated in the framework of a biomonitoring program. Fledglings from colonies in freshwater were more contaminated with mercury, PCBs and many organic contaminants than those from estuarine colonies. The level of contamination in the St. Lawrence River is generally below the levels of toxicological effects for the great blue heron. The molar ratio of retinol: retinyl palmitate in heron eggs was correlated with total PCBs (r=0.79) and Mirex (r=0.90). In plasma, all biochemical parameters were significantly different between freshwater and marine colonies. Plasma retinol concentrations at the Dickerson and Hérons colonies were significantly lower compared with those at Grande Ile (p<0.05) and Steamboat (p<0.001). Based on retinoid and beta-carotene concentrations in eggs, low plasma retinol was not associated with possible dietary deficiency. Plasma retinol was negatively correlated with many PCB congeners, total PCBs (r=-0.78), p,p'-DDE, trans-nonachlor and alpha-HCH. Similarly, the hormone T3 was correlated with many PCB congeners, total PCBs (r=-0.69) and the same organochlorine chemicals. Plasma LDH concentrations were different among freshwater colonies, Grande Ile and Hérons colonies having LDH values significantly greater than those of Steamboat (respectively, p<0.05 and p<0.01). Globally, the health status of the St. Lawrence great blue heron population was judged to be acceptable, however, several biomarkers indicated positive responses to contaminants.

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“…12 These authors have reported that the dominant congeners -1,2,3,7,8-pentachlorodibenzo-p-dioxins (PnCDD), 1,2,3,6,7,8-HxCDD, 2,3,7,8-TCDD, 2,3,7,8-TCDF, 1,2,3,7,8,9-HxCDD, 2,3,4,7,8 pentachlorodibenzofurans (PnCDF) -fell markedly during the early 1990s after the pulp mills changed from molecular chlorine bleaching to alternative bleaching technologies and restricted usage of chlorophenolic wood preservatives and antisapstains. 13 Nevertheless, most published data of surveys and tests in the pulp and paper research had been limited to determining only 2,3,7,8-TCDD and 2,3,7,8-TCDF, where the minimum detection level was usually 10 pg/l, for example, in the minimum level of the U.S. Environmental Protection Agency (EPA) method 1613. 7 Thus, with setting the environmental standard at 1 pg TEQ WHO1998 /l in Japan, it becomes necessary to perform new surveys and investigations of whether the addition of excessive chlorine dioxide might cause chlorine molecule formation and subsequent dioxin generation.…”

Section: Introductionmentioning

confidence: 99%

Examination of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in process water of kraft pulp bleaching mill using chlorine dioxide from the aspect of environmental water quality

Nakamata¹,

Ohi

2003

J Wood Sci

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Process water of a pulp mill with extended kraft cooking, two-stage oxygen delignification, and chlorine dioxide bleaching was examined from the aspect of a new standard for environmental water quality in Japan. According to the new standard, the concentration of dioxins-polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, coplanar polychlorinated biphenyls-in environmental water is restricted to less than 1 pg TEQ/l. We clarified that the concentrations of the dioxins in sewers in the chlorine dioxide stage and the alkali stage were less than 1 pg TEQ/l and that the 2,3,7,8-tetrachlorodibenzofuran concentrations were 0.5 pg/l or less. In addition, a main source of 1,3,6,8-and 1,3,7,9-tetrachlorodibenzo-p-dioxins in the process water seemed to be an agrochemical in water supplied from a river.

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Monitoring Temporal and Spatial Trends in Polychlorinated Dibenzo-p-dioxins (PCDDs) and Dibenzofurans (PCDFs) in Eggs of Great Blue Heron (Ardea herodias) on the Coast of British Columbia, Canada, 1983–1998

Cited by 22 publications

References 33 publications

Osprey: Worldwide Sentinel Species for Assessing and Monitoring Environmental Contamination in Rivers, Lakes, Reservoirs, and Estuaries

Osprey: Worldwide Sentinel Species for Assessing and Monitoring Environmental Contamination in Rivers, Lakes, Reservoirs, and Estuaries

Contamination and Biomarkers in the Great Blue Heron, an Indicator of the State of the St. Lawrence River

Examination of polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans in process water of kraft pulp bleaching mill using chlorine dioxide from the aspect of environmental water quality

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