The method for reporting pesticides is different in freshwater/estuarine waterways compared to in the marine environment. The “multisubstance-Potentially Affected Fraction” (ms-PAF) method is used in freshwater/estuarine waterways and the “PSII herbicide equivalent concentration” (PSII-HEq) method is used in the marine environment.

It is expected that reporting pesticides in the inshore marine zones will move to using the ms-PAF method by the release of the 2019 report card. This will allow for direct comparison of scores between basins, estuaries and inshore marine zones.

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