| Abstract: | Dissolved organic carbon (DOC) is a significant organic carbon reservoir in many ecosystems, and its characteristics and sources determine many aspects of ecosystem health and water quality. Fluorescence spectroscopy methods can quantify and characterize the subset of the DOC pool that can absorb and re-emit electromagnetic energy as fluorescence and thus provide a rapid technique for environmental monitoring of DOC in lakes and rivers. Using high resolution fluorescence techniques, we characterized DOC in the Tualatin River watershed near Portland, Oregon, and identified fluorescence parameters associated with effluent from two wastewater treatment plants and samples from sites within and outside the urban region. Using a variety of statistical approaches, we developed and validated a multivariate linear regression model to predict the amount of wastewater in the river as a function of the relative abundance of specific fluorescence excitation/emission pairs. The model was tested with independent data and predicts the percentage of wastewater in a sample within 80% confidence. Model results can be used to develop in situ instrumentation, inform monitoring programs, and develop additional water quality indicators for aquatic systems. |
| Genre: | Article |
| ProdID: | 70037955 |
| Citation Author: | Goldman, Jami H.; Rounds, Stewart A.; Needoba, Joseph A. |
| Citation Contributing Office: | Oregon Water Science Center |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | |
| Citation Editor: | |
| Citation End Page: | 4381 |
| Citation Issue: | 8 |
| Citation Keywords: | |
| Citation Language: | English |
| Citation Larger Work Title: | Environmental Science and Technology |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | 8 p. |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | ACS Publications |
| Citation Series: | |
| Citation Series Code: | |
| Citation Series Number: | |
| Citation Search Results Text: | Applications of fluorescence spectroscopy for predicting percent wastewater in an urban stream; 2012; Article; Journal; Environmental Science and Technology; Goldman, Jami H.; Rounds, Stewart A.; Needoba, Joseph A. |
| Citation Start Page: | 4374 |
| Citation Volume: | 46 |
| Citation Year: | 2012 |
| Type: | citation/reference |
| Text: | Applications of fluorescence spectroscopy for predicting percent wastewater in an urban stream; 2012; Article; Journal; Environmental Science and Technology; Goldman, Jami H.; Rounds, Stewart A.; Needoba, Joseph A. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.1021/es2041114 |
| Date Other: | Fri, 11 May 2012 11:04 -0500 |
| Publisher: | ACS Publications |
