Mechanistic polychlorinated biphenyl exposure modeling of mothers in the Canadian Arctic: the challenge of reliably establishing dietary composition

Binnington, Matthew J.; Curren, Meredith S.; Quinn, Cristina L.; Armitage, James M.; Arnot, Jon A.; Chan, Hing Man; Wania, Frank

doi:10.1016/j.envint.2016.04.011

Cited by 19 publications

(26 citation statements)

References 80 publications

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“…A large share of the documented evidence of the impacts of pollution upon IPs comes from North America (47%; 156 cases) and South America (27%; 99 cases), with strong research foci on the Arctic (Paunescu et al 2013; Binnington et al 2016; Krümmel and Gilman 2016) and the Amazon (da Silva Brabo et al 2000; Rosell‐Melé et al 2018) (Figure 1). Research on pollution and IPs in Africa is relatively meager (11%; 41 cases), with most of it coming from the Niger Delta region; there is limited information for the rest of the continent.…”

Section: Resultsmentioning

confidence: 99%

“…Pollutants accumulating in food chains through biomagnification have been particularly well‐documented in marine mammals (Kuhnlein et al 1995; Binnington et al 2016), seafood (Donatuto et al 2011), riverine fish (Ullah et al 2016), birds (Bidleman et al 2010), large mammals (Doyle et al 2012), and caribou (Ostertag et al 2009), and IPs in many areas depend heavily on these foods. Several studies have shown that global warming may increase pollution levels in fish and marine mammals by increasing rates of ecological mobilization and biomagnification (Jenssen 2006; Dudley et al 2015).…”

Section: Resultsmentioning

confidence: 99%

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A State‐of‐the‐Art Review of Indigenous Peoples and Environmental Pollution

Fernández‐Llamazares

Garteizgogeascoa

Basu

et al. 2020

Integr Envir Assess & Manag

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Indigenous peoples (IPs) worldwide are confronted by the increasing threat of pollution. Based on a comprehensive review of the literature (n = 686 studies), we present the current state of knowledge on: 1) the exposure and vulnerability of IPs to pollution; 2) the environmental, health, and cultural impacts of pollution upon IPs; and 3) IPs' contributions to prevent, control, limit, and abate pollution from local to global scales. Indigenous peoples experience large burdens of environmental pollution linked to the expansion of commodity frontiers and industrial development, including agricultural, mining, and extractive industries, as well as urban growth, waste dumping, and infrastructure and energy development. Nevertheless, IPs are contributing to limit pollution in different ways, including through environmental monitoring and global policy advocacy, as well as through local resistance toward polluting activities. This work adds to growing evidence of the breadth and depth of environmental injustices faced by IPs worldwide, and we conclude by highlighting the need to increase IPs' engagement in environmental decision-making regarding pollution control. Integr Environ Assess Manag 2020;16:324-341.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

A State‐of‐the‐Art Review of Indigenous Peoples and Environmental Pollution

Fernández‐Llamazares

Garteizgogeascoa

Basu

et al. 2020

Integr Envir Assess & Manag

View full text Add to dashboard Cite

show abstract

“…It is also a shift from a diet that includes marine mammals to one that does not. Quinn et al [28] and Binnington et al [29] have used a similar modelling approach to the one adopted here to explore the effect in this dietary shift on PCB exposure. The effect of the change in food web structure is larger than the effect of the proximity of the food source region to PCB sources, i.e.…”

Section: Resultsmentioning

confidence: 99%

Who in the world is most exposed to polychlorinated biphenyls? Using models to identify highly exposed populations

Undeman

Brown

McLachlan

et al. 2018

Environ. Res. Lett.

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Human subpopulations experience different exposure to persistent organic pollutants (POPs) because of differences in the structure of their food webs and the extent of environmental contamination. Here we quantify the time-variant exposure of different human populations around the world to one representative POP, namely the polychlorinated biphenyl (PCB) congener 153, based on a dynamic simulation of both global environmental fate (using the model BETR-Global) and human food chain bioaccumulation (using the model ACC-HUMAN). The approach identifies subpopulations whose diets include a carnivorous mammal as experiencing the world's highest PCB-153 exposure, i.e. the very large biomagnification potential of their food web more than makes up for the remoteness of their living environment. However, for subpopulations that do not eat warm-blooded carnivores, the proximity to sources of PCBs is more important than food web structure and environmental conditions for differentiating their exposure to PCBs.

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“…The authors deduced that the lipid-rich external blubber layer of seals, and the ambient temperature of their surrounding seawater environment, necessitated assumptions of either an empirically-based milk/blubber partition coefficient (K MB - Hickie et al 2005), or separating the core and blubber compartments during calculations, with the latter requiring an assumed temperature gradient from ambient seawater to core values (Czub and McLachlan 2007). Based on this work, additional models D r a f t were developed estimating contaminant uptake by bowhead whales (Balaena mysticetus) (Binnington and Wania 2014), and narwhals (Monodon monoceros) (Binnington et al 2016a).…”

Section: R a F Tmentioning

confidence: 99%

“…Over the past 10 years a number of mechanistic models have been developed that aim to specifically simulate the exposures of human populations indigenous to the Arctic to environmental contaminants (Kelly et al 2007;Czub et al 2008;Verner et al 2009Verner et al , 2013Undeman et al 2010;, Binnington et al 2016a. These pursuits are largely motivated by exposures to many pollutants among indigenous Arctic people that substantially exceed those of southern populations (Donaldson et al 2010;Laird et al 2013;Curren et al 2014 • Identify the properties of contaminants capable of accumulating in Arctic human food chains, and to identify chemicals used in commerce that may have such properties.…”

mentioning

confidence: 99%

Mechanistic modeling of persistent organic pollutant exposure among indigenous Arctic populations: motivations, challenges, and benefits

2017

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Indigenous Arctic populations experience elevated exposures to many environmental contaminants compared with groups residing in southern Canada. This is largely due to consumption of traditional foods, some of which (ringed seals, beluga whales, narwhals, etc.) have relatively high concentrations of persistent organic pollutants. Models of contaminant fate, transport, and bioaccumulation represent powerful tools to explore this exposure issue, wherein combined models can be used to mechanistically and dynamically describe the entire sequence of events linking chemical emissions into the environment to ultimate contaminant concentrations in indigenous Arctic populations. In this review, various approaches adapted and applied to understanding indigenous Arctic contaminant exposure are explored, including early models describing body burdens in single traditional food species to more recent approaches holistically examining uptake and bioaccumulation in entire food chains. The applications of these models are also discussed, including attempts to (i) identify chemical properties favouring transport to, and bioaccumulation in, the Arctic; (ii) clarify the main determinants of temporal trends observed in indigenous Arctic biomonitoring; (iii) explore the impacts of permanent and temporary dietary transitions on current and future indigenous Arctic contaminant exposures; and (iv) correlate modeled early-life pollutant exposures with measured health impacts. The review demonstrates the effectiveness of mechanistic model approaches in investigating indigenous Arctic contaminant exposure, and confirms their utility in continued improvements to understanding associated risk in this unique population context.

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Mechanistic polychlorinated biphenyl exposure modeling of mothers in the Canadian Arctic: the challenge of reliably establishing dietary composition

Cited by 19 publications

References 80 publications

A State‐of‐the‐Art Review of Indigenous Peoples and Environmental Pollution

A State‐of‐the‐Art Review of Indigenous Peoples and Environmental Pollution

Who in the world is most exposed to polychlorinated biphenyls? Using models to identify highly exposed populations

Mechanistic modeling of persistent organic pollutant exposure among indigenous Arctic populations: motivations, challenges, and benefits

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