| Abstract: | A stormflow study of natural organic matter and organic contaminants in the Santa Ana River, the Mill Creek tributary, and an urban drain tributary discovered cyanuric acid in variable concentrations up to 510 ?g/L. Cyanuric acid was isolated with a hydrophilic natural organic matter (NOM) fraction, and its identity was confirmed by a combination of infrared spectrometry, 13C-nuclear magnetic resonance (13C-NMR) spectrometry, and electrospray ionization/mass spectrometry. Cyanuric acid concentrations, based upon 13C-NMR spectral quantitation, increased during the peak and recessional flows of the storm hydrographs during three storms at three sites. The greatest fluxes of cyanuric acid were observed in the Santa Ana River during the third storm. The most likely source of cyanuric acid is as a metabolite of triazine herbicides, based on hydrographs, land uses of the drainage basins, and the yearly application rates of triazine herbicides. The daily flux of cyanuric acid in Santa Ana River stormflow during the third storm was calculated to be about 1 percent of the yearly application rate for triazine herbicides. Cyanuric acid was not detected in ground water at wells adjacent to the Santa Ana River. |
| Genre: | USGS Numbered Series |
| ProdID: | 80852 |
| Citation Author: | Leenheer, Jerry A.; Izbicki, John A.; Rostad, Colleen E.; Noyes, Ted I.; Woodside, Greg |
| Citation Contributing Office: | Geological Survey (U.S.) |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | Version 1.0 |
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| Citation Language: | ENGLISH |
| Citation Larger Work Title: | |
| Citation LatN: | 0343000 |
| Citation LatS: | 0332500 |
| Citation LonE: | -1162500 |
| Citation LonW: | -1181500 |
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| Citation No Pagination: | |
| Citation Number Of Pages: | |
| Citation Online Only Flag: | Y |
| Citation Phsyical Description: | vi, 13 p. |
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| Citation Public Comments: | Prepared in cooperation with the Orange County Water District, Fountain Valley, California |
| Citation Publisher: | Geological Survey (U.S.) |
| Citation Series: | Scientific Investigations Report |
| Citation Series Code: | SIR |
| Citation Series Number: | 2007-5048 |
| Citation Search Results Text: | Discovery of Cyanuric Acid During an Assessment of Natural Organic Matter in Stormflow Water of the Santa Ana River, Southern California, 2003-2004; 2007; SIR; 2007-5048; Leenheer, Jerry A.; Izbicki, John A.; Rostad, Colleen E.; Noyes, Ted I.; Woodside, Greg |
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| Citation Volume: | |
| Citation Year: | 2007 |
| Type: | citation/reference |
| Text: | Discovery of Cyanuric Acid During an Assessment of Natural Organic Matter in Stormflow Water of the Santa Ana River, Southern California, 2003-2004; 2007; SIR; 2007-5048; Leenheer, Jerry A.; Izbicki, John A.; Rostad, Colleen E.; Noyes, Ted I.; Woodside, Greg |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/usgs_thumb.jpg |
| URL (INDEX PAGE): | http://pubs.usgs.gov/sir/2007/5048/ |
| Date Other: | Tue, 15 Jan 2008 00:00 -0600 |
| Publisher: | Geological Survey (U.S.) |
