Toxic Substances Hydrology Program

Data and Tools

The integrated investigations of the Toxic Substances Hydrology and Contaminant Biology combined programs generate and interpret environmental contaminant, toxicity, and effects data. All of which is provided to the public in our publications and data sets.

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Date published: January 1, 2017

Herbicide Safener and Co-Applied Herbicide Concentrations for Seven Streams across Iowa and Illinois (March 2016 to June 2017)

Four dichloroacetamide herbicide safeners (AD-67, benoxacor, dichlormid, and furilazole) and two co-applied herbicides (acetochlor and metolachlor) were measured in water samples from 7 streams across Iowa and Illinois. Iowa water samples were collected from March 2016 to June 2017, and Illinois water samples were collected from September 2016 to June 2017. The compounds studied a