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Glyphosate persistence in seawater

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dc.contributor Hlth Serv Support Agcy
dc.contributor University Of Queensland
dc.contributor Qld Dept Hlth
dc.contributor Univ Queensland
dc.contributor Australian Inst Marine Sci
dc.contributor Natl Res Ctr Environm Toxicol
dc.contributor Forens & Sci Serv
dc.contributor Australian Institute Of Marine Science NEGRI, ANDREW P. MERCURIO, PHILIP FLORES, FLORITA MUELLER, JOCHEN F. CARTER, STEVE 2014-02-18T03:57:12Z 2017-03-21T01:08:18Z 2014-02-18T03:57:12Z 2019-07-08T02:18:22Z 2014-02-18T03:57:12Z 2014-02-18T03:57:12Z 2017-03-21T01:08:18Z 2019-07-08T02:18:22Z 2014-08-30
dc.identifier.citation Mercurio P, Flores F, Mueller JF, Carter S, Negri AP (2014) Glyphosate persistence in seawater. Marine Pollution Bulletin 85(2): 385-390 en_US
dc.identifier.issn 0025-326X
dc.description.abstract Glyphosate is one of the most widely applied herbicides globally but its persistence in seawater has not been reported. Here we quantify the biodegradation of glyphosate using standard "simulation" flask tests with native bacterial populations and coastal seawater from the Great Barrier Reef. The half-life for glyphosate at 25 degrees C in low-light was 47 days, extending to 267 days in the dark at 25 degrees C and 315 days in the dark at 31 degrees C, which is the longest persistence reported for this herbicide. AMPA, the microbial transformation product of glyphosate, was detected under all conditions, confirming that degradation was mediated by the native microbial community. This study demonstrates glyphosate is moderately persistent in the marine water under low light conditions and is highly persistent in the dark. Little degradation would be expected during flood plumes in the tropics, which could potentially deliver dissolved and sediment-bound glyphosate far from shore. Crown Copyright (C) 2014 Published by Elsevier Ltd.
dc.description.sponsorship This research was conducted with the support of funding from the Australian Government's National Environmental Research Program. en_US
dc.description.uri en_US
dc.language English
dc.language.iso en en_US
dc.publisher Elsevier OPEN ACCESS en
dc.relation.ispartof Null
dc.subject Degradation
dc.subject Pesticide
dc.subject Surface Waters
dc.subject River
dc.subject Environmental Sciences & Ecology
dc.subject Flood-plume
dc.subject Environmental Sciences
dc.subject Microbial
dc.subject Herbicides
dc.subject Marine & Freshwater Biology
dc.subject Tropical
dc.subject Risk-assessment
dc.subject Natural-waters
dc.subject Glyphosate
dc.subject Seawater
dc.subject Persistence
dc.subject Aminomethylphosphonic Acid
dc.subject Great-barrier-reef
dc.title Glyphosate persistence in seawater
dc.type journal article en_US
dc.identifier.doi 10.1016/j.marpolbul.2014.01.021
dc.identifier.wos WOS:000341556100011

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