Feb 2013: Overview of pesticides running off farms into the Great Barrier Reef produced by the Reef and Rainforest Research Centre (Cairns). Main pesticides include: Atrazine, Diuron, Ametryn, Hexazinone and Tebuthiuron.
https://reefcatchments.com.au/files/2013/02/RRRC-Water-Quality-Pesticide-Factsheet-1.pdf