Pesticide occurrence in a subtropical estuary, Australia: Complementary sampling methods.

Autor: Jamal E; Faculty of Science and Engineering, Southern Cross University, Australia; Faculty of Fisheries and Marine Science, Pattimura University, Indonesia., Reichelt-Brushett A; Faculty of Science and Engineering, Southern Cross University, Australia. Electronic address: amanda.reichelt-brushett@scu.edu.au., Gillmore M; Department of Planning and Environment, New South Wales, Australia., Pearson B; Department of Planning and Environment, New South Wales, Australia., Benkendorff K; Faculty of Science and Engineering, Southern Cross University, Australia; National Marine Science Centre, Southern Cross University, Australia.
Jazyk: angličtina
Zdroj: Environmental pollution (Barking, Essex : 1987) [Environ Pollut] 2024 Feb 01; Vol. 342, pp. 123084. Date of Electronic Publication: 2023 Dec 07.
DOI: 10.1016/j.envpol.2023.123084
Abstrakt: Monitoring pesticide run-off in the aquatic environment is ecologically important. Effective methods are required to detect the wide range of possible pesticides that enter estuaries from the surrounding catchment. Here, we investigate the occurrence of pesticides in the Richmond River estuary, Australia, and compare the effectiveness of using oysters and Chemcatcher® passive sampling devices against composite water samples. Samples were collected from six sites during two sampling periods: from January to March 2020 (4 weekly composite water samples and oyster collections) and from February to March 2021 (8 twice weekly composite water samples and Chemcatcher® deployment). Samples were analysed for up to 174 pesticides. A total of 21 pesticides were detected across all sites using all methods. The number of pesticides and mixture of pesticides detected in the 2020 sampling was higher in oyster samples than in water samples. In 2021, Chemcatcher® samplers detected more pesticides than in water samples. Herbicides were the most common in all samples. Insecticides and most fungicides were detected only in oysters and Chemcatcher®. Overall, the use of three complementary sampling approaches demonstrated a high level of pesticide input into the Richmond River estuary, highlighting the usefulness of oysters as biomonitors for some pesticides.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
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