Metal pollution trajectories and mixture risk assessed by combining dated cores and subsurface sediments along a major European river (Rhône River, France)

Dendievel, André‐Marie; Mourier, Brice; Dabrin, Aymeric; Delile, Hugo; Coynel, Alexandra; Gosset, Antoine; Liber, Yohan; Berger, Jean‐François; Bedell, Jean-Philippe

doi:10.1016/j.envint.2020.106032

Cited by 27 publications

(17 citation statements)

References 89 publications

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“…On a regional scale, this punctual source closure may also have impacted Zn contamination in the Loire estuary, because Zn often tracks with Pb in metallurgical emissions. , From a broader national perspective, some of the reductions in Zn, Pb, Cu, Hg, and Cd emissions have been explained by the ban on leaded gasoline (year 2000), fume trapping systems in industry plants, and a gradual shift from coal burning to nuclear power in the energy sector in the 1970s . Similar decreasing tendencies for these trace metals were observed in sedimentary archives from the four major French watersheds (Loire, Seine, , Garonne, and Rhône , ) and attributed to the same economic and regulatory reasons . All of these results point to an overall diminution of anthropogenic Zn circulation in the French watersheds in the past two decades and, consequently, of its inputs into marine and coastal systems.…”

Section: Resultsmentioning

confidence: 75%

Application of Zn Isotope Compositions in Oysters to Monitor and Quantify Anthropogenic Zn Bioaccumulation in Marine Environments over Four Decades: A “Mussel Watch Program” Upgrade

et al. 2021

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The application of zinc (Zn) isotope compositions in bivalve organisms to quantify anthropogenic Zn bioaccumulation in marine biota is of great interest to environmental marine management programs such as the "Mussel Watch Program". Field studies, however, are urgently needed to test its practical value. To this end, we investigated Zn isotope variations in the oyster Crassostrea gigas collected over four decades near the Loire estuary (France), where previous geochemical studies provided evidence for a regionally uniform but temporally variable metal contamination. We show that the Zn temporal isotope profile of oysters matches that of the sedimentary records with an isotope offset of approximately +0.5-0.7‰, tentatively attributed to compromised estuarine processes and trophic transfer. A Zn isotope model for quantifying anthropogenic Zn bioaccumulation suggests an overall decrease in anthropogenic estuarine Zn levels over the past 40 years. This first successful application of Zn isotope ratios in a bivalve species to quantify anthropogenic Zn bioaccumulation confirms their utility for supporting environmental management strategies in marine biomonitoring programs.Please note that this is an author-produced PDF of an article accepted for publication following peer review. The definitive publisher-authenticated version is available on the publisher Web site.

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Section: Resultsmentioning

confidence: 75%

Application of Zn Isotope Compositions in Oysters to Monitor and Quantify Anthropogenic Zn Bioaccumulation in Marine Environments over Four Decades: A “Mussel Watch Program” Upgrade

et al. 2021

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“…For example, the HQs of Cr for these two populations in regions R1 and R2 were approximately 1.8 and 1.4 times greater than the values for the whole region, respectively; the HQs for Pb in regions R1, R2 and R4 were approximately 3.2, 3.9 and 1.9 times greater than that for the entire region, respectively, but in the R1 region alone, the HQ value of Ni is approximately 1.7 times higher than that for the whole area. Studies have shown that with the development of global industry, agriculture and urbanization, metal contamination and health risks increase (Dendievel et al 2020;Chen et al 2021). In China, especially in the more developed economy of the southern provinces, the high concentrations and enrichments of metals (Cd, Hg, Pb, Cr and Ni) in sediments pose a higher health risk to the public, and children and females are vulnerable populations (Chen et al 2015).…”

Section: Health Risk and Regional Differencesmentioning

confidence: 99%

“…Due to human activities, PTEs are readily deposited and immobilized on surface sediments and have the potential to weaken the pollution buffer capacities of ecosystems (Barsova et al 2019;Chen et al 2019). Importantly, PTEs in sediments, especially metallic elements (such as Cr, Cu, Ni, Pb, Zn), can be considerably biomagnified along the food chain, resulting in human health risks (Chapman 2012;Chen et al 2016;Hou et al 2019;Atamaleki et al 2020;Dendievel et al 2020;Xiao et al 2021). PTE contamination in sediments has aroused great attention and caused critical environmental problems worldwide (Fu et al 2014;Adimalla 2020;Dendievel et al 2020;Zhan et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Spatial enrichment assessment, source identification and health risks of potentially toxic elements in surface sediments, Central Asian countries

Wang

Zhan

et al. 2021

J Soils Sediments

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Purpose Potentially toxic elements (PTEs), particularly metallic elements, are some of the most dangerous pollutants found in surface sediments due to their toxicity and persistence. Given the contamination-related issues for sediments in Central Asian countries (CACs), a combination of risk assessment and source apportionment was used in characterizing the pollution sources and source-specific risks of metallic elements in the sediments of CACs. Materials and methods Surface sediment samples collected from 254 sites across the CACs were analysed for PTEs. The calculation of enrichment factor (EF) and the assessments of health risks were devoted to identifying contamination and risk characteristics, including geomorphic-and watershed-driven variability. Multivariate statistical analyses were applied to quantitatively identify contamination sources. Results and discussionThe results suggested that Cr, Cu and Ni were minimally enriched, Pb was moderately enriched, and Zn was significantly enriched. Interestingly, the EF of Pb was considerably higher in the northwest plain of the CAC region, but that of Zn was distributed across the study area. Source apportionment indicated that natural and anthropogenic sources accounted for 40.42% and 59.58% of the total contamination, respectively. Overall, the non-carcinogenic risks caused by PTEs were acceptable, but Cr and Pb exhibited higher non-carcinogenic effects in the Caspian Sea-Ural River and Ishim River regions. Moreover, fuel combustion, atmospheric deposition and industrial activities made higher contributions than other sources to the ecological risk of PTEs in the CACs. Conclusions This study will advance our knowledge of spatial differences, contamination risks and source identification for PTEs in sediments and provide a scientific basis for policy makers to design environmental strategies in the CACs.

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“…where C n is the concentration of metal n and B n is as indicated above. The factor K is the background matrix correction factor due to lithospheric effects, which is usually defined as 1.5 according to Muller (1969).…”

Section: Physico-geochemical and Eco-toxicological Analysesmentioning

confidence: 99%

Ecological Risks of Heavy Metals and Microbiome Taxonomic Profile of a Freshwater Stream Receiving Wastewater of Textile Industry

Odubanjo¹,

Oyetibo²,

Ilori³

2021

Front. Environ. Sci.

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Textile wastewater (TWW) contains toxic metals that are inimical to microbiome, aesthetic quality, and the health of the receiving freshwater. TWW-impacted freshwater (L2) was assessed for metals eco-toxicity and the consequent impact on microbiome taxonomic profile (MTP) compared to a pristine environment (L1). The conductivity (1750 μS/cm), chemical oxygen demand (2,110 mg/L), biochemical oxygen demand (850 mg/L), and salinity (5,250 mg/L) of L2 were far above the permissible limits. Mercury posed very high ecological risks in the water column of L2 as lead, arsenic, and copper exerted high risk in the sediment. The MTP of L2 revealed the dominance of Euryarchaeota (48.6%) and Bathyarchaeota (45.9%) among the Archaea. The relative abundances of Proteobacteria and Bacteroidetes increased from 38.3 to 2.0%, respectively, in the L1 ecosystem to 42.1 and 12.9%, correspondingly, in L2. Unclassified Eukarya_uc_p (50.4%) and Fungi_uc (16.0%) were key players among the fungi kingdom in L2. The impact of the TWW on the microbiome was evident with the extinction of 6,249, 32,272, and 10,029 species of archaea, bacteria, and fungi, respectively. Whereas, 35,157, 32,394, and 7,291 species of archaea, bacteria, and fungi, correspondingly, exclusively found in L2 were assumed to be invading resident communities that combined with dominant autochthonous strains in shaping the ecophysiology dynamics in TWW-impacted freshwater. While the sensitive microorganisms in L2 are suggested bio-indicators of TWW ecotoxicity, the emergent and dominant taxa are pivotal to natural attenuation processes in the contaminated ecosystem that could be adopted for biotechnological strategy in decommissioning the TWW-impacted freshwater.

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Metal pollution trajectories and mixture risk assessed by combining dated cores and subsurface sediments along a major European river (Rhône River, France)

Cited by 27 publications

References 89 publications

Application of Zn Isotope Compositions in Oysters to Monitor and Quantify Anthropogenic Zn Bioaccumulation in Marine Environments over Four Decades: A “Mussel Watch Program” Upgrade

Application of Zn Isotope Compositions in Oysters to Monitor and Quantify Anthropogenic Zn Bioaccumulation in Marine Environments over Four Decades: A “Mussel Watch Program” Upgrade

Spatial enrichment assessment, source identification and health risks of potentially toxic elements in surface sediments, Central Asian countries

Ecological Risks of Heavy Metals and Microbiome Taxonomic Profile of a Freshwater Stream Receiving Wastewater of Textile Industry

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