The Broad-Scale Analysis of Metals, Trace Elements, Organochlorine Pesticides and Polycyclic Aromatic Hydrocarbons in Wetlands Along an Urban Gradient, and the Use of a High Trophic Snake as a Bioindicator

Autor: Damian C. Lettoof, Philip W. Bateman, Fabien Aubret, Marthe Monique Gagnon
Přispěvatelé: Curtin University [Perth], Planning and Transport Research Centre (PATREC), Station d'écologie théorique et expérimentale (SETE), Université Toulouse III - Paul Sabatier (UT3), Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Observatoire Midi-Pyrénées (OMP), Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Université Fédérale Toulouse Midi-Pyrénées-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Météo France-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)
Rok vydání: 2020
Předmět:
Geologic Sediments
010504 meteorology & atmospheric sciences
[SDV]Life Sciences [q-bio]
Health
Toxicology and Mutagenesis
Wetland
010501 environmental sciences
Toxicology
01 natural sciences
Geologic Sediments / chemistry
Hydrocarbons
Chlorinated
Water Pollutants
Elapidae
Polycyclic Aromatic Hydrocarbons
Pesticides / analysis
media_common
Trophic level
geography.geographical_feature_category
Environmental Biomarkers
biology
Trace Elements / analysis
Elapidae / metabolism
food and beverages
General Medicine
Pollution
6. Clean water
Liver
Metals
Chemical / analysis
Environmental chemistry
Bioaccumulation
[SDE]Environmental Sciences
Environmental Monitoring
Polycyclic Aromatic Hydrocarbons / analysis
media_common.quotation_subject
Liver / metabolism
Metals
Heavy
Environmental Monitoring / methods
Animals
Ecotoxicology
Cities
Pesticides
0105 earth and related environmental sciences
geography
Liver / drug effects
Notechis scutatus
Australia
Sediment
15. Life on land
Chlorinated / analysis
Heavy / analysis
biology.organism_classification
Hydrocarbons
Trace Elements
13. Climate action
Wetlands
Environmental science
Bioindicator
Environmental Biomarkers / drug effects
Water Pollutants
Chemical
Zdroj: Archives of Environmental Contamination and Toxicology
Archives of Environmental Contamination and Toxicology, Springer Verlag, 2020, 78 (4), pp.631-645. ⟨10.1007/s00244-020-00724-z⟩
ISSN: 1432-0703
0090-4341
Popis: International audience; Wetlands and their biodiversity are constantly threatened by contaminant pollution from urbanisation. Despite evidence suggesting that snakes are good bioindicators of environmental health, the bioaccumulation of contaminants in reptiles is poorly researched in Australia. We conducted the first broad-scale analysis of 17 metals and trace elements, 21 organochlorine pesticides, and 14 polycyclic aromatic hydrocarbons in the sediments (4 samples per site, December 2018) from four wetlands along an urban gradient in Perth, Western Australia, and from the livers (5 livers per site, February-April 2019) of western tiger snakes Notechis scutatus occidentalis captured at those sites. All 17 metals and trace elements were detected in the sediments of wetlands as well as 16 in the livers of tiger snakes. Arsenic, Cu, Hg, Pb, Se, and Zn were at concentrations exceeding government trigger values in at least one sediment sample. Two organochlorine pesticides and six of seven polycyclic aromatic hydrocarbons were detected in the sediments of a single wetland, all exceeding government trigger values, but were not detected in tiger snakes. Metals and trace elements were generally in higher concentration in sediments and snake livers from more heavily urbanised wetlands. The least urbanised site had some higher concentrations of metals and trace elements, possibly due to agriculture contaminated groundwater. Concentrations of nine metals and trace elements in snake livers were statistically different between sites. Arsenic, Cd, Co, Hg, Mo, Sb, and Se near paralleled the pattern of contamination measured in the wetland sediments; this supports the use of high trophic wetland snakes, such as tiger snakes, as bioindicators of wetland contamination. Contamination sources and impacts on these wetland ecosystems and tiger snakes are discussed herein.
Databáze: OpenAIRE
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