Pesticide occurrence and spatio-temporal variability in urban run-off across Australia

Megan A Rippy; Ana Deletic; Jeff Black; Rupak Aryal; Jane-Louise Lampard; Janet Yat-Man Tang; David McCarthy; Peter Kolotelo; Jatinder P S Sidhu; Wolfgang Gernjak

doi:10.1016/j.watres.2017.03.010

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Pesticide occurrence and spatio-temporal variability in urban run-off across Australia

Journal article

Peer reviewed

Pesticide occurrence and spatio-temporal variability in urban run-off across Australia

Megan A Rippy, Ana Deletic, Jeff Black, Rupak Aryal, Jane-Louise Lampard, Janet Yat-Man Tang, David McCarthy, Peter Kolotelo, Jatinder P S Sidhu and Wolfgang Gernjak

Water Research, Vol.115, pp.245-255

2017

DOI: https://doi.org/10.1016/j.watres.2017.03.010

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Abstract

pesticide

urban runoff

stormwater management

alternative water source

spatio-temporal pattern

principal component analysis

Stormwater is a major driving factor of aquatic ecosystem degradation as well as one of the largest untapped urban freshwater resources. We present results from a long-term, multi-catchment study of urban stormwater pesticides across Australia that addresses this dichotomous identity (threat and resource), as well as dominant spatial and temporal patterns in stormwater pesticide composition. Of the 27 pesticides monitored, only 19 were detected in Australian stormwater, five of which (diuron, MCPA, 2,4-D, simazine, and triclopyr) were found in >50% of samples. Overall, stormwater pesticide concentrations were lower than reported in other countries (including the United States, Canada and Europe), and exceedances of public health and aquatic ecosystem standards were rare (<10% of samples). Spatio-temporal patterns were investigated with principal component analysis. Although stormwater pesticide composition was relatively stable across seasons and years, it varied significantly by catchment. Common pesticide associations appear to reflect 1) user application of common registered formulations containing characteristic suites of active ingredients, and 2) pesticide fate properties (e.g., environmental mobility and persistence). Importantly, catchment-specific occurrence patterns provide opportunities for focusing treatment approaches or stormwater harvesting strategies.

Details

Title: Pesticide occurrence and spatio-temporal variability in urban run-off across Australia
Authors: Megan A Rippy (Author) - University of California, Irvine
Ana Deletic (Author) - Monash University
Jeff Black (Author) - The University of Queensland
Rupak Aryal (Author) - The University of Queensland
Jane-Louise Lampard (Author) - University of the Sunshine Coast - Faculty of Science, Health, Education and Engineering
Janet Yat-Man Tang (Author) - The University of Queensland
David McCarthy (Author) - Monash University
Peter Kolotelo (Author) - Monash University
Jatinder P S Sidhu (Author) - CSIRO Land and Water
Wolfgang Gernjak (Corresponding Author) - The University of Queensland
Publication details: Water Research, Vol.115, pp.245-255
Publisher: IWA Publishing
Date published: 2017
DOI: 10.1016/j.watres.2017.03.010
ISSN: 0043-1354
Organisation Unit: University of the Sunshine Coast, Queensland; School of Health and Sport Sciences - Legacy; School of Health and Behavioural Sciences - Legacy; School of Health - Public Health
Language: English
Record Identifier: 99451077002621
Output Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Engineering, Environmental; Environmental Sciences; Water Resources

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