From Australian Oceans Data Network
JSON format icon JSON RDF format icon RDF ISO19115-3 XML

Persistence of glyphosate in seawater. Glyphosate concentrations recorded over time in standard flask experiment 2013. (NERP TE 4.2, AIMS and UQ)

Created 24/06/2025

Updated 24/06/2025

JSON format icon JSON RDF format icon RDF ISO19115-3 XML

This dataset shows the concentrations of the herbicide glyphosate remaining over time in a simulation flask persistence experiment conducted in 2013. Glyphosate degradation experiments were carried out in flasks according to the OECD methods for ‘‘simulation tests’’. The tests used natural coastal seawater and were carried out in the incubator shakers under 3 conditions: (1) 25°C in the dark, (2) 31°C in the dark and (3) 25°C in the light. The light levels were ~40 µE on a 12:12 light:dark cycle and the flasks shaken at 100 rpm for up to 330 days. Water samples were taken periodically and analysed by high performance liquid chromatography-mass spectrometry (HPLC-MS/MS). Reductions in the concentration of Glyphosate were plotted to predict the persistence of this herbicide (its “half-life”). The emergence of AMPA, a breakdown product of Glyphosate, was also quantified. The experiment and its results are described in full detail in: P. Mercurio, F. Flores, J. F. Muller, S. Carter, A. P. Negri AP (2014), Glyphosate persistence in seawater. Marine Pollution Bulletin http://dx.doi.org/10.1016/j.marpolbul.2014.01.021 Data Format: The data consists of a CSV file containing the results of the 3 treatments. All concentrations in µg/L D25 = Dark 25 degrees celcius D31 = Dark 31 degrees celcius L25 = Light 25 degrees celcius Uncertainty in the analytical method for repeated inejctions into the LC-MS results in a concentration uncertainty of approximately ± 0.2 µg/L

Files and APIs

Tags

Additional Info

Field Value
Title Persistence of glyphosate in seawater. Glyphosate concentrations recorded over time in standard flask experiment 2013. (NERP TE 4.2, AIMS and UQ)
Language eng
Licence Not Specified
Landing Page https://data.gov.au/data/dataset/61b8dd2d-4309-47d1-8543-b18dccd54192
Contact Point
Australian Ocean Data Network
a.negri@aims.gov.au
Reference Period 01/01/2013 - 30/11/2013
Geospatial Coverage
Map data © OpenStreetMap contributors
{
  "coordinates": [
    147.05509,
    -19.26762
  ],
  "type": "Point"
}
Data Portal Australian Oceans Data Network

Data Source

This dataset was originally found on Australian Oceans Data Network "Persistence of glyphosate in seawater. Glyphosate concentrations recorded over time in standard flask experiment 2013. (NERP TE 4.2, AIMS and UQ)". Please visit the source to access the original metadata of the dataset:
https://catalogue.aodn.org.au/geonetwork/srv/eng/csw/dataset/persistence-of-glyphosate-in-seawater-glyphosate-concentrations-recorded-over-time-in-standard-1