Remobilization of pollutants during extreme flood events poses severe risks to human and environmental health

Crawford, Sarah E.; Brinkmann, Markus; Ouellet, Jacob D.; Lehmkuhl, Frank; Reicherter, Klaus; Schwarzbauer, Jan; Bellanova, Piero; Letmathe, Peter; Blank, Lars M.; Weber, Roland; Brack, Werner; Dongen, Joost Thomas van; Menzel, Lucas; Hecker, Markus; Schüttrumpf, Holger; Hollert, Henner

doi:10.1016/j.jhazmat.2021.126691

Cited by 85 publications

(35 citation statements)

References 84 publications

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“…Persistent organic pollutants have been detected in humans globally [21][22][23][24] and in their food [25], in aquatic biota even at the remotest places such as polar regions, high-mountain lakes, offshore waters and deep ocean trenches [26,27] and in terrestrial food webs [28]. At the same time, there is evidence that climate change may remobilize legacy pollution in sediments [29] and glaciers [30] that has been thought to be permanently removed from the biosphere [31]. However, also less persistent chemicals of emerging concern (CECs), including pharmaceuticals and modern pesticides, occur ubiquitously in the global environment because of their widespread and continued use by societies all over the world [32][33][34][35].…”

Section: Foster Global Knowledge On Exposure and Impactsmentioning

confidence: 99%

One planet: one health. A call to support the initiative on a global science–policy body on chemicals and waste

et al. 2022

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The chemical pollution crisis severely threatens human and environmental health globally. To tackle this challenge the establishment of an overarching international science–policy body has recently been suggested. We strongly support this initiative based on the awareness that humanity has already likely left the safe operating space within planetary boundaries for novel entities including chemical pollution. Immediate action is essential and needs to be informed by sound scientific knowledge and data compiled and critically evaluated by an overarching science–policy interface body. Major challenges for such a body are (i) to foster global knowledge production on exposure, impacts and governance going beyond data-rich regions (e.g., Europe and North America), (ii) to cover the entirety of hazardous chemicals, mixtures and wastes, (iii) to follow a one-health perspective considering the risks posed by chemicals and waste on ecosystem and human health, and (iv) to strive for solution-oriented assessments based on systems thinking. Based on multiple evidence on urgent action on a global scale, we call scientists and practitioners to mobilize their scientific networks and to intensify science–policy interaction with national governments to support the negotiations on the establishment of an intergovernmental body based on scientific knowledge explaining the anticipated benefit for human and environmental health.

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Section: Foster Global Knowledge On Exposure and Impactsmentioning

confidence: 99%

One planet: one health. A call to support the initiative on a global science–policy body on chemicals and waste

et al. 2022

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“…However, in AMDW, not only are the activity of the aquatic organisms and the richness and quantity of the microbes and benthonic animals markedly inhibited due to the low pH (2.73); high salinity; high concentrations of Fe, Mn, Cu, Zn, Pb and other toxic elements; and the rust-like suspended particles [33], but the degradation rates of the litters are also decreased. AMD pollution could cause longterm impairment to the waterways and biodiversity, which has serious human health and ecological implications [47].…”

Section: Discussionmentioning

confidence: 99%

The Combined Application of Surface Floating Wetlands and Bottom Anaerobic to Remediate AMD-Contaminated Lakes

Wang³

et al. 2022

Journal of Chemistry

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Acid mine drainage (AMD) causes environmental pollution that affects many countries with historic or current mining industries. The eco-remediation system (RW) which combined surface floating wetlands and bottom anaerobic sediments (SFW-BAS) was selected for AMD-contaminated lakes (AMDW). Meanwhile, AMDW and nature aquatic ecosystems (NW) were set as the control groups, respectively. The parameters, including pH, Eh, Fe, Mn, SO42−, and the degradation rate of the native dominant plant litter were investigated to assess the effects of remediation. The results showed that the average of pH, Eh, and EC, was 2.73, 484.08 mv, and 2395.33 μs·cm−1, respectively. The average content of SO42−, Fe, Mn, Cu, Zn, and Pb was 2190 mg·L−1, 40.2 mg·L−1, 4.6 mg·L−1, 249.2 μg·L−1, 1563 μg·L−1, and 112.9 μg·L−1, respectively. The degradation rate of plant litters in AMDW ranged from 14.5% to 22.6%. However, RW ultimately improved the water quality and the degradation of litters. RW has a good effect on buffering the acidity, ranging from 3.96 to 7.41. The pH of RW (6.14) is close to that of NW (7.41). The average content of SO42−, Fe, Mn, Cu, Zn, and Pb was 2071 mg·L−1, 3.4 mg·L−1, 2.4 mg·L−1, 85.3 μg·L−1, 607.4 μg·L−1, and 47.8 μg·L−1, respectively, which showed good pollutant removal performance. The degradation rate of plant litters in RW ranged from 27.8% to 32.6%. Therefore, RW can be used to remediate AMDW.

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“…Some of these changes are already happening, as seen in the unprecedented number and magnitude of extreme events of the last decade. Extreme events, such as floods, can promote the transport and translocation of chemical contaminants (Horowitz et al, 2014) and plastics (Ford et al, 2022) to large areas, exposing organisms to high concentrations of contaminants for an extended period (Barber et al, 2017;Izaditame et al, 2022), potentially causing more ecological adverse effects and health risks through various exposure routes, including bioaccumulation in the food web (Och et al, 2014;Crawford et al, 2022).…”

Section: The Way Forwardmentioning

confidence: 99%

Emergent interactive effects of climate change and contaminants in coastal and ocean ecosystems

et al. 2022

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The effects of climate change (CC) on contaminants and their potential consequences to marine ecosystem services and human wellbeing are of paramount importance, as they pose overlapping risks. Here, we discuss how the interaction between CC and contaminants leads to poorly constrained impacts that affects the sensitivity of organisms to contamination leading to impaired ecosystem function, services and risk assessment evaluations. Climate drivers, such as ocean warming, ocean deoxygenation, changes in circulation, ocean acidification, and extreme events interact with trace metals, organic pollutants, excess nutrients, and radionuclides in a complex manner. Overall, the holistic consideration of the pollutants-climate change nexus has significant knowledge gaps, but will be important in understanding the fate, transport, speciation, bioavailability, toxicity, and inventories of contaminants. Greater focus on these uncertainties would facilitate improved predictions of future changes in the global biogeochemical cycling of contaminants and both human health and marine ecosystems.

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Remobilization of pollutants during extreme flood events poses severe risks to human and environmental health

Cited by 85 publications

References 84 publications

One planet: one health. A call to support the initiative on a global science–policy body on chemicals and waste

One planet: one health. A call to support the initiative on a global science–policy body on chemicals and waste

The Combined Application of Surface Floating Wetlands and Bottom Anaerobic to Remediate AMD-Contaminated Lakes

Emergent interactive effects of climate change and contaminants in coastal and ocean ecosystems

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