2011/12 August: Barratta Creek (Qld). Pesticides: Multiple.

Sep 2011: Eight sites along the Great Barrier Reef contaminated with high levels of pesticides above ANZECC Guidelines. The pesticides include: Atrazine, Diuron and Metolachlor. 97% of toxins in the Barratta Creek consisted of Diuron.

https://www.smh.com.au/environment/conservation/unsafe-toxin-levels-found-in-great-barrier-reef-20110922-1kmsu.html

2011: Large Scale Pesticide Monitoring Across Great Barrier Reef Catchments – Paddock to Reef Integrated Monitoring, Modelling and Reporting Program, 11 pesticides (and two metabolites) detected in Barratta Creek: Atrazine, Ametryn, Desethyl Atrazine, Desisopropyl Atrazine, Diuron, Hexazinone, Simazine, Tebuthiuron, Metolachlor, Imidacloprid, 2,4-D, Metribuzin and Propazine

https://nkieec.eq.edu.au/Supportandresources/Formsanddocuments/Documents/teacher-resources/Sample%20year%207%20program/Resources/marine-pollution-bulletin.pdf

Shaw MS, Silburn DS, Lenahan M & Harris M. 2012.

Pesticides in groundwater in the Lower Burdekin floodplain. Brisbane:
Department of Environment and Resource Management, Queensland Government.
ISBN: 978-1-7423-0953.
March 2012

Results Lower Burdekin Surface Water August 2011

Barratta Creek

Ametryn 0.01ug/L

Atrazine 1.14ug/L

Desethyl Atrazine 0.069ug/L

Desisopropyl Atrazine 0.044ug/L

Diuron 0.412ug/L

Hexazinone 0.02ug/L

Metolachlor 0.005ug/L

MCPA 0.11ug/L

2,4-D 0.13ug/L

Metribuzin 0.1ug/L