Burdekin River at Home Hill Inkerman Bridge

1289 pesticide detections between Oct 2011 and Feb 2023

Diuron: 58 detections of Diuron between Dec 2011 and Jan 2023. 0.53ug/L (max 30/12/21). 0.0407ug/L (av.)

2,4-D: 74 detections of 2,4-D between Jan 2013 and Jan 2023. 0.24ug/L (max 14/12/14). 0.036ug/L (av.)

Ametryn: 17 detections of Ametryn between Jan 2012 and Jan 2023. 0.16ug/L (max 12/5/22). 0.04ug/L (av.)

Atrazine: 241 detections of Atrazine between Oct 2011 and Jan 2023. 1.7ug/L (max 24/11/13). 0.089ug/L (av.)

Bromacil: 2 detections of Bromacil in Jan 2023. 0.18ug/L (max 15/1/23). 0.1ug/L (av.)

Chlorpyrifos: 1 trace detection of Chlorpyrifos 21/1/19.

Diazinon: 11 detections of Diazinon (6 trace detections) between Jan 2017 and Jan 2019. 0.0002ug/L (max 6/2/17). 0.00005ug/L (av.)

Fluroxypur: 20 detections of Fluroxypur between Jan 2016 to Jan 2023. 0.33ug/L (max 18/1/23). 0.0512ug/L (av.)

Haloxyfop: 13 detections of Haloxyfop between Feb 2013 and Jan 2023. 0.02ug/L (max 18/1/23). 0.0039ug/L (av.)

Hexazinone: 23 detections of Hexazinone between Feb 2014 and May 2017. 0.002ug/L (max 20/2/14). 0.0008ug/L (av.)

Imazapic: 53 detections of Imazapic between Jan 2016 and Jan 2023. 0.06ug/L (max 30/12/21). 0.0115ug/L (av.)

Imidacloprid: 14 detections of Imidacloprid between Feb 2013 and Oct 2022. 0.08ug/L (max 14/12/14). 0.0203ug/L (av.)

Isoxaflutole: 34 detections of Isoxaflutole between Feb 2013 and Dec 2018. 0.05ug/L (max 20/2/13). 0.0088ug/L (av.)

MCPA: 52 detections of MCPA between Jul 2012 and Jan 2023. 0.01ug/L (max 13/7/12). 0.0197ug/L (av.)

Metolachlor: 142 detections of Metolachlor between Jan 2012 and Feb 2023. 0.86ug/L (max 27/10/20). 0.0356ug/L (av.)

Metsulfuron Methyl: 7 detections of Metsulfuron Methyl between Dec 2016 and May 2017. 0.0059ug/L (max 13/3/17). 0.0016ug/L (av.)

Metribuzin: 7 detections of Metribuzin between Dec 2016 and Jan 2021. 0.04ug/L (max 4/1/21). 0.0073ug/L (av.)

Simazine: 38 detections of Simazine between Mar 2013 and Jun 2017. 0.0089ug/L (max 27/1/17). 0.0046ug/L (av.)

Tebuthiuron: 396 detections of Tebuthiuron between Feb 2012 and Feb 2023. 1.7ug/L (max 29/1/22). 0.1079ug/L (av.)

Terbuthylazine: 67 detections of Terbuthylazine between Oct 2016 and Feb 2023. 0.06ug/L (max 28/4/22). 0.0114ug/L (av.)

Triclopyr: 19 detections of Triclopyr between Feb 2016 and Jan 2019. 0.06ug/L (max 12/1/19). 0.0068ug/L (av.)

Source: Pesticide Reporting Portal – Queensland Government. https://storymaps.arcgis.com/stories/c0f0c6d7d88a4fd3a5541fe59f41ff75

Burdekin River at Home Hill

Ametryn 1.7kg, Total Atrazine 240kg, Diuron 29kg, Tebuthiuron 30kg

Land Use Yield

Ametryn (Sugarcane) 0.014 kg/km2

Atrazine (Cropping, Forestry & Sugarcane) 0.11kg/km2

Diuron (Cropping, Horticulture & Sugarcane) 0.02kg/km2

Tebuthiuron  (Grazing) 0.00025kg/km2

Source: Reef Water Quality Protection Plan. Total Suspended Solids, Nutrients & Pesticide Loads (2012-2013) for Rivers that Discharge to the Great Barrier Reef – Great Barrier Reef Catchment Loads Monitoring 2012-2013

https://www.reefplan.qld.gov.au/measuring-success/paddock-to-reef/assets/2012-2013-gbr-catchment-loads-technical-report.pdf

2011: Large Scale Pesticide Monitoring Across Great Barrier Reef Catchments – Paddock to Reef Integrated Monitoring, Modelling and Reporting Program, 3 pesticides detected in Burdekin River: Atrazine, Diuron, Tebuthiuron.