Impact of hexazinone on invertebrates after application to forested watersheds. Mayack, D. T. Archives of Environmental Contamination and Toxicology, 1982.
Impact of hexazinone on invertebrates after application to forested watersheds [pdf]Paper  abstract   bibtex   
The impact of the herbicide hexazinone was assessed on aquatic macrophytes, aquatic and terrestrial invertebrate communities within forested watersheds in the Georgia Piedmont. Four watersheds were treated and subsequently monitored for 8 months. Residue levels in terrestrial invertebrates were a maximum of two orders of magnitude greater than comparable levels (0.01 to 0.18 p/m) found in forest floor material. Aquatic organisms in a second order perennial stream were exposed to intermittent concentrations of hexazinone (6 to 44 p/b). Hexazinone residues were generally not detected (\textless0.1 p/m) in aquatic invertebrates and macrophytes. No major alterations in species composition or diversity were detected in the aquatic macroinvertebrate community.

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