1995 March – 1996 April: Brageen Crossing (Gwydir River). Pesticide: Chlorpyrifos

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Brageen Crossing – Gwydir River upstream Moree

3 March 1995: Chlorpyrifos 8.7ug/L

5 April 1996: Chlorpyrifos 0.18ug/L

Source: Muschal