Journal article
Pesticide occurrence in an agriculturally intensive and ecologically important coastal aquatic system in Australia
Marine Pollution Bulletin, Vol.180, 113675
07/2022
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Source: InCites
Abstract
Coastal agricultural practices are often located in catchments upstream of ecologically important aquatic systems. Here, we investigate the occurrence of pesticides in a coastal creek flowing into a habitat-protected area within the Solitary Islands Marine Park, Australia. Water samples were collected from six sites along a creek transect during three sampling periods. Samples were analysed for 171 pesticide analytes, including organochlorines, organophosphates, herbicides, and fungicides. Five insecticides, two herbicides, and two fungicides were detected. The neonicotinoid imidacloprid was detected at 5 out of 6 sites, with concentrations reaching 294 μg L−1, the highest yet detected in Australian waterways. The organophosphate insecticide dimethoate was detected at 4 sites, which occurred at the 2nd highest detected concentration in the study (12.8 μg L−1). The presence of these pesticides in the aquatic environment downstream of horticulture in this and other regions may have serious implications for stream biota and ecologically important marine ecosystems.
•Nine pesticides were detected flowing into a Marine Park in Australia.•Imidacloprid was detected at 294 μg L−1, highest yet recorded in Australia.•Dimethoate and Imidacloprid were detected during all sampling periods.•There is a 100–1000 decrease in Imidacloprid flux downstream relative to upstream.
Details
- Title
- Pesticide occurrence in an agriculturally intensive and ecologically important coastal aquatic system in Australia
- Creators
- Dylan LaicherKirsten BenkendorffShane WhiteSteve ConradRebecca L. WoodrowPeter ButcherineChristian J. Sanders
- Publication Details
- Marine Pollution Bulletin, Vol.180, 113675
- Publisher
- Elsevier Ltd
- Grant note
- This project was funded by the Coffs Harbour City Council, Major Strategic Program.
- Identifiers
- 991013026109002368
- Copyright
- © 2022 Elsevier Ltd. All rights reserved.
- Academic Unit
- National Marine Science Centre; Faculty of Science and Engineering; Science
- Language
- English
- Resource Type
- Journal article