Erratum: “Decadal Changes in the Edible Supply of Seafood and Methylmercury Exposure in the United States”

Sunderland, Elsie M.; Li, Miling; Bullard, Kurt

doi:10.1289/ehp3460

Cited by 9 publications

(8 citation statements)

References 2 publications

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“…Methylmercury (CH 3 Hg + , MMHg) is a strong neurotoxin that can induce neurocognitive defects in fetuses and cardiovascular diseases in grown-ups. − Human’s MMHg exposure is primarily from the ever-increasing consumption of seafood. − Once MMHg passes through cell membranes, it strongly binds with protein sulfhydryl or selenium and is very slow to be eliminated . Therefore, MMHg undergoes significant biomagnification in the marine food webs.…”

Section: Introductionmentioning

confidence: 99%

Bottom-Heavy Trophic Pyramids Impair Methylmercury Biomagnification in the Marine Plankton Ecosystems

Dutkiewicz

Monier

2021

Environ. Sci. Technol.

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Methylmercury (CH3Hg+, MMHg) in the phytoplankton and zooplankton, which form the bottom of marine food webs, is a good predictor of MMHg in top predators, including humans. Therefore, evaluating the potential exposure of MMHg to higher trophic levels (TLs) requires a better understanding of relationships between MMHg biomagnification and plankton dynamics. In this study, a coupled ecological/physical model with 366 plankton types of different sizes, biogeochemical functions, and temperature tolerance is used to simulate the relationships between MMHg biomagnification and the ecosystem structure. The study shows that the MMHg biomagnification becomes more significant with increasing TLs. Trophic magnification factors (TMFs) in the lowest two TLs show the opposite spatial pattern to TMFs in higher TLs. The low TMFs are usually associated with a short food-chain length. The less bottom-heavy trophic pyramids in the oligotrophic oceans enhance the MMHg trophic transfer. The global average TMF is increased from 2.3 to 2.8 in the warmer future with a medium climate sensitivity of 2.5 °C. Our study suggests that if there are no mitigation measures for Hg emission, MMHg in the high-trophic-level plankton is increased more dramatically in the warming future, indicating greater MMHg exposure for top predators such as humans.

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Section: Introductionmentioning

confidence: 99%

Bottom-Heavy Trophic Pyramids Impair Methylmercury Biomagnification in the Marine Plankton Ecosystems

Dutkiewicz

Monier

2021

Environ. Sci. Technol.

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“…Limitations. We adopt so far the most comprehensive approach to model the food MeHg concentrations, especially the inclusion of ocean model coupled with plankton ecosystem is of great interest because seafood consumption is the major exposure pathway in most countries (Eagles-smith et al 2018;Sunderland, Li, and Bullard 2018a). Our ability to model the MeHg risk is limited by existing scientific knowledge and data, such as the food web dynamics of MeHg in higher trophic levels.…”

Section: Resultsmentioning

confidence: 99%

Human Health Benefits of the Minamata Convention on Mercury

Zhang

2020

Preprint

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<p>The Minamata Convention is a legally-binding international treaty aimed at reducing the anthropogenic release of mercury, a potent neurotoxin. However, its human health benefit has not been quantified at a global scale. Here we evaluate the Convention&#8217;s benefit by a coupled climate-atmosphere-land-ocean-ecosystem model and a human mercury exposure component that considers all food categories. We find the mercury health risk decreases nonlinearly with emission reduction, and the most optimistic scenario leads to mercury level in marine biota half of the present-day level. Our results show that the accumulated benefits of the Convention are 660 billion USD avoided earn loss (3% discount rate, realized in 2010) and 1.2 million avoided deaths from fatal heart attacks over the period 2010-2100, with substantial global human health cost if delaying emission reduction actions. Such a comprehensive modelling approach helps parties to evaluate the effectiveness of implementation as required by the Convention.</p>

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“…Recently, studies have combined the economic systems with traditional biogeochemical Hg cycle to identify the impacts of economic activities and international trade on Hg emissions and related health impacts. For example, previous studies have characterized the impacts of local Hg emissions on domestic human health in the U.S. and China. ,, In addition to local Hg emissions, remote economic activities can also influence local Hg emissions through global supply chains ,, and subsequently influence human health. ,, For instance, our recent study has revealed China’s regional Hg-related health impacts driven by the economic activities of other regions in China . In addition to domestic economic drivers, international economic activities also influence domestic Hg-related health impacts via global supply chains.…”

Section: Introductionmentioning

confidence: 94%

“…In addition, MeHg exposure is closely associated with the risks of cardiovascular diseases . Given the long-distance transport of Hg, the assessment of Hg-related health impacts should be based on a complete Hg cycle (e.g., atmospheric Hg emissions, − atmospheric Hg transport and deposition, , MeHg bioaccumulation, , and Hg-related health risks , ). Recently, studies have combined the economic systems with traditional biogeochemical Hg cycle to identify the impacts of economic activities and international trade on Hg emissions and related health impacts.…”

Section: Introductionmentioning

confidence: 99%

Spatially Explicit Global Hotspots Driving China’s Mercury Related Health Impacts

Chen

Liang

et al. 2020

Environ. Sci. Technol.

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Over 100 nations signed the Minamata Convention on Mercury to control the adverse effects of mercury (Hg) emissions on human beings. A spatially explicit analysis is needed to identify the specific sources and distribution of Hg-related health impacts.This study maps China's Hg-related health impacts and global supply chain drivers (i.e., global final consumers and primary suppliers) at a high spatial resolution. Here we show significant spatial heterogeneity in hotspots of China's Hg-related health impacts. Approximately 1% of the land area holds only 40% of the Chinese population but nearly 70% of the fatal heart attack deaths in China. Moreover, approximately 3% of the land area holds nearly 60% of the population but 70% of the intelligence quotient (IQ) decrements. The distribution of hotspots of China's Hg-related health impacts and global supply chain drivers are influenced by various factors including population, economy, transportation, resources, and dietary intake habits. These spatially explicit hotspots can support more effective policies in various stages of the global supply chains and more effective international cooperation to reduce Hg-related health impacts. This can facilitate the successful implementation of the Minamata Convention on Mercury. KEYWORDS Mercury; health impacts; supply chain; input-output analysis; spatially explicit analysis; trade; footprint; Minamata Convention 3 SYNOPSIS Spatially explicit analyses for China's Hg-related health impacts and relevant global economic drivers can facilitate the smooth implementation of the Minamata Convention on Mercury.

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Erratum: “Decadal Changes in the Edible Supply of Seafood and Methylmercury Exposure in the United States”

Cited by 9 publications

References 2 publications

Bottom-Heavy Trophic Pyramids Impair Methylmercury Biomagnification in the Marine Plankton Ecosystems

Bottom-Heavy Trophic Pyramids Impair Methylmercury Biomagnification in the Marine Plankton Ecosystems

Human Health Benefits of the Minamata Convention on Mercury

Spatially Explicit Global Hotspots Driving China’s Mercury Related Health Impacts

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