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Eleven-Year Trend in Acetanilide Pesticide Degradates in the Iowa River, Iowa

Dates

Year
2011

Citation

Kalkhoff, Stephen J., Vecchia, Aldo V., Capel, Paul D., and Meyer, Michael T., 2011, Eleven-Year Trend in Acetanilide Pesticide Degradates in the Iowa River, Iowa: J. Environ. Qual., v. 41, no. 5, p. 1566-1579.

Summary

Trends in concentration and loads of acetochlor, alachlor, and metolachlor and their ethanasulfonic (ESA) and oxanilic (OXA) acid degradates were studied from 1996 through 2006 in the main stem of the Iowa River, Iowa and in the South Fork Iowa River, a small tributary near the headwaters of the Iowa River. Concentration trends were determined using the parametric regression model SEAWAVE-Q, which accounts for seasonal and flow-related variability. Daily estimated concentrations generated from the model were used with daily streamflow to calculate daily and yearly loads. Acetochlor, alachlor, metolachlor, and their ESA and OXA degradates were generally present in >50% of the samples collected from both sites throughout the study. Their [...]

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  • National and Regional Climate Adaptation Science Centers
  • Northeast CASC

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Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.2134/jeq2011.0426

Citation Extension

citationTypeJournal Article
journalJ. Environ. Qual.
parts
typePages
value1566-1579
typeVolume
value41
typeNumber
value5

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