Skip to Main Content
Fluorometry as a bacterial source tracking tool in coastal watersheds, Trinidad, CAAuthor(s): Trever Parker; Andrew Stubblefield
Source: In: Standiford, Richard B.; Weller, Theodore J.; Piirto, Douglas D.; Stuart, John D., tech. coords. Proceedings of coast redwood forests in a changing California: A symposium for scientists and managers. Gen. Tech. Rep. PSW-GTR-238. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture. pp. 131-140
Publication Series: General Technical Report (GTR)
Station: Pacific Southwest Research Station
PDF: View PDF (826.43 KB)
DescriptionBacterial counts have long been used as indicators of water pollution that may affect public health. By themselves, bacteria are indicators only and can not be used to identify the source of the pollutant for remediation efforts. Methods of microbial source tracking are generally time consuming, labor intensive and expensive. As an alternative, a fluorometer can be used to measure fluorescence in natural creeks as an indicator of concentrations of optical brighteners found in laundry detergent. In this way, fluorescence can be used as a tool for identifying failing or malfunctioning onsite wastewater treatment systems. Fluorometry was used in watersheds draining into northern California’s Trinidad Bay in Humboldt County, in conjunction with bacterial sampling and measurement of rainfall and turbidity for correlation and comparison. Results showed that optical brighteners, when coupled with rainfall and turbidity data, can accurately predict whether bacterial standards will be exceeded within individual watersheds. Fluorescence of optical brighteners was also shown to be a useful tool for discerning the most impacted watersheds and tributaries for more detailed investigation of individual bacterial pollution sources.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationParker, Trever; Stubblefield, Andrew. 2012. Fluorometry as a bacterial source tracking tool in coastal watersheds, Trinidad, CA. In: Standiford, Richard B.; Weller, Theodore J.; Piirto, Douglas D.; Stuart, John D., tech. coords. Proceedings of coast redwood forests in a changing California: A symposium for scientists and managers. Gen. Tech. Rep. PSW-GTR-238. Albany, CA: Pacific Southwest Research Station, Forest Service, U.S. Department of Agriculture. pp. 131-140.
Keywordsbacteria, fluorometer, optical brighteners, septic, source tracking, wastewater
- Bacterial associations with decaying wood : a review
- New and modified techniques for studying nitrogen-fixing bacteria in small mammal droppings.
- Bacterial flora on Cascades frogs in the Klamath Mountains of California
XML: View XML