Metals in liver and kidneys and the effects of chronic exposure to pyrite mine pollution in the shrew Crocidura russula inhabiting the protected wetland of Doñana

Sánchez-Chardi, Alejandro; Ribeiro, Ciro Alberto de Oliveira; Nadal, J.

doi:10.1016/j.chemosphere.2009.03.036

Cited by 92 publications

(23 citation statements)

References 48 publications

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“…Sediment is also associated with numerous substances and contaminants (e.g., metals, nutrients, organic compounds, and antibiotics; e.g., Tamtam et al, 2008;Le Cloarec et al, in press). These chemicals can then be bioaccumulated by organisms such as fishes ingesting particles and they can lead to public health problems after their consumption (e.g., Sánchez-Chardi et al, 2009;Urban et al, 2009). In mountainous environments, the problems associated with sedimentation are exacerbated by the important quantities of sediment produced during storms (e.g., Meybeck et al, 2003;Mano et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Sediment dynamics during the rainy season in tropical highland catchments of central Mexico using fallout radionuclides

Evrard

Némery

Gratiot³

et al. 2010

Geomorphology

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International audienceTropical regions are affected by intense soil erosion associated with deforestation, overgrazing, and cropping intensification. This land degradation leads to important on-site (e.g., decrease in soil fertility) and off-site (e.g., reservoir siltation and water pollution) impacts. This study determined the mean soil particle and sediment residence times in soils and rivers of three subcatchments (3-12 km2) with contrasted land uses (i.e., cropland, forests, and rangelands) draining to a reservoir located in highlands of the transvolcanic Mexican belt. Calculations were based on rainfall amount and river discharges as well as on fallout radionuclide measurements (Be-7, Cs-137, and Pb-210) conducted on rainfall precipitated samples, soil sampled in the catchments, and suspended sediment collected by automatic samplers in the river during most storms recorded throughout the 2009 rainy season. Calculations using a radionuclide two-box balance model showed that the mean residence time of particles in soils ranged between 5000 ± 1500 and 23,300 ± 7000 years. In contrast, sediment residence time in rivers was much shorter, fluctuating between 50 ± 30 and 200 ± 70 days. The shortest mean residence times were measured in a hilly catchment dominated by cropland and rangelands, whereas they were the longest in an undulating catchment dominated by forests and cropland. Calculation of the Be-7/excess-Pb-210 in both rainfall and sediment allowed gaining insight on sediment dynamics throughout the rainy season. The first heavy storms of the year exported the bulk of the sediment stock accumulated in the river channel during the previous year. Then, during the rainy season, the two steeper catchments dominated by cropland and rangelands reacted strongly to rainfall. Sediment was indeed eroded and exported from both catchments during single heavy storms on several occasions in 2009. In contrast, the agro-forested catchment with gentler slopes exported sediment at a constant and low rate throughout the rainy season. Overall, land cover and flood type clearly proved to exert more control on sediment export than slope steepness and rainfall erosivity. Our results show the priority of stabilising old gully systems to prevent their extension by regressive erosion to cropland and to concentrate the implementation of on-site erosion control measures in cropland and rangeland of the most reactive catchments

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Section: Introductionmentioning

confidence: 99%

Sediment dynamics during the rainy season in tropical highland catchments of central Mexico using fallout radionuclides

Evrard

Némery

Gratiot³

et al. 2010

Geomorphology

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“…The extensive, high-level TM contamination in soils surrounding the former Metaleurop smelter was reflected by the high metal levels measured in sampled organisms, which appeared among the highest reported in the literature for the various species studied [34], [36], [38], [69], [70], [72]–[75].…”

Section: Discussionmentioning

confidence: 99%

“…As age can influence TM accumulation in small mammals and snails [7], [34], [69], [70], we modelled the relationship between internal and soil TM concentrations controlling for age; residuals of the internal concentration/age relationship (which will be referred to hereafter as “internal concentration normalized to age”) were modelled against total or CaCl 2 -extractable TM concentrations in soils. On the basis of the R 2 of these models, we determined which soil TM concentration (total or CaCl 2 -extractable) better explained the internal TM concentrations.…”

Section: Methodsmentioning

confidence: 99%

Spatially Explicit Analysis of Metal Transfer to Biota: Influence of Soil Contamination and Landscape

et al. 2011

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Concepts and developments for a new field in ecotoxicology, referred to as “landscape ecotoxicology,” were proposed in the 1990s; however, to date, few studies have been developed in this emergent field. In fact, there is a strong interest in developing this area, both for renewing the concepts and tools used in ecotoxicology as well as for responding to practical issues, such as risk assessment. The aim of this study was to investigate the spatial heterogeneity of metal bioaccumulation in animals in order to identify the role of spatially explicit factors, such as landscape as well as total and extractable metal concentrations in soils. Over a smelter-impacted area, we studied the accumulation of trace metals (TMs: Cd, Pb and Zn) in invertebrates (the grove snail Cepaea sp and the glass snail Oxychilus draparnaudi) and vertebrates (the bank vole Myodes glareolus and the greater white-toothed shrew Crocidura russula). Total and CaCl2-extractable concentrations of TMs were measured in soils from woody patches where the animals were captured. TM concentrations in animals exhibited a high spatial heterogeneity. They increased with soil pollution and were better explained by total rather than CaCl2-extractable TM concentrations, except in Cepaea sp. TM levels in animals and their variations along the pollution gradient were modulated by the landscape, and this influence was species and metal specific. Median soil metal concentrations (predicted by universal kriging) were calculated in buffers of increasing size and were related to bioaccumulation. The spatial scale at which TM concentrations in animals and soils showed the strongest correlations varied between metals, species and landscapes. The potential underlying mechanisms of landscape influence (community functioning, behaviour, etc.) are discussed. Present results highlight the need for the further development of landscape ecotoxicology and multi-scale approaches, which would enhance our understanding of pollutant transfer and effects in ecosystems.

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“…The liver is described as a key organ for biotransformation of chemicals in vertebrates and a potential target for chemical-induced injury. Some chemicals as well as metals can lead to necrosis of hepatocyte cells (de Oliveira Ribeiro et al 2002;Sánchez-Chardi et al 2009), DNA fragmentation, and redox unbalance (Proskuryakov et al 2003). In the gills, some pathological alterations such as primary and secondary lamellae damage, fusion of adjacent lamellae, neoplasia, and aneurisms are characteristic of waterborne exposure to chemicals (Liu et al 2010;Srivastava et al 2009).…”

Section: Different Biomarkers Showed That the Health Of Fish Is Comprmentioning

confidence: 98%

Bioavailability of pollutants sets risk of exposure to biota and human population in reservoirs from Iguaçu River (Southern Brazil)

Yamamoto

Pereira

Lottermann

et al. 2016

Environ Sci Pollut Res

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The Iguaçu River, located at the Southern part of Brazil, has a great socioeconomic and environmental importance due to its high endemic fish fauna and its potential to generate hydroelectric power. However, Iguaçu River suffers intense discharge of pollutants in the origin of the river. In a previous report, the local environmental agency described water quality to improve along the river course. However, no study with integrated evaluation of chemical analysis and biological responses has been reported so far for the Iguaçu River. In the current study, three different Brazilian fish species (Astyanax bifasciatus, Chrenicicla iguassuensis, and Geophagus brasiliensis) were captured in the five cascading reservoirs of Iguaçu River for a multi-biomarker study. Chemical analysis in water, sediment, and muscle indicated high levels of bioavailable metals in all reservoirs. Polycyclic aromatic hydrocarbons (PAHs) were detected in the bile of the three fish species. Integration of the data through a FA/PCA analysis demonstrated the poorest environmental quality of the reservoir farthest from river's source, which is the opposite of what has been reported by the environmental agency. The presence of hazardous chemicals in the five reservoirs of Iguaçu River, their bioaccumulation in the muscle of fish, and the biological responses showed the impacts of human activities to this area and did not confirm a gradient of pollution between the five reservoirs, from the source toward Iguaçu River's mouth. Therefore, diffuse source of pollutants present along the river course are increasing the risk of exposure to biota and human populations.

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Metals in liver and kidneys and the effects of chronic exposure to pyrite mine pollution in the shrew Crocidura russula inhabiting the protected wetland of Doñana

Cited by 92 publications

References 48 publications

Sediment dynamics during the rainy season in tropical highland catchments of central Mexico using fallout radionuclides

Sediment dynamics during the rainy season in tropical highland catchments of central Mexico using fallout radionuclides

Spatially Explicit Analysis of Metal Transfer to Biota: Influence of Soil Contamination and Landscape

Bioavailability of pollutants sets risk of exposure to biota and human population in reservoirs from Iguaçu River (Southern Brazil)

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