Issue 1, 2004
From the journal:

Journal of Environmental Monitoring

The fate of fipronil in modular estuarine mesocosms†

Spencer S. Walse,a   Paul L. Pennington,b   Geoffrey I. Scottc  and  John L. Ferry*a  

* Corresponding authors

a Department of Chemistry and Biochemistry, University of South Carolina, Columbia, SC 29208, USA
E-mail: ferry@mail.chem.sc.edu
Fax: (803) 777-9521
Tel: (803) 777-2646

b Department of Environmental Health Sciences, Arnold School of Public Health, University of South Carolina, Columbia, SC 29208, USA

c NOAA/NOS/NCCOS Center for Coastal Environmental Health and Biomolecular Research, 219 Ft. Johnson Road, Charleston, SC 29412, USA

Abstract

The degradation and corresponding product manifold for the pesticide fipronil was determined in three replicate estuarine mesocosms. Aqueous fipronil concentrations rapidly decreased over the 672 h timescale of the experiment (95% removal). Loss was apparently first-order in fipronil, although there appeared to be a change in the removal mechanism after 96 h that corresponded to a dramatic slowdown in its disappearance. The reduction product of fipronil, fipronil sulfide, was not detected in the water column; however, it formed rapidly in sediments and was identified as the major product of fipronil degradation in the system (20% yield at 672 h, with respect to initial fipronil concentration). Fipronil sulfone is thought to form primarily via biological oxidation; and, although it was generated rapidly in the water column (10% yield), only trace amounts were detected in the sediment (1% yield). The direct photolysis product of fipronil, fipronil desulfinyl, was present in all samples; it formed rapidly in the water column (4% yield) and partitioned into the sediment phase (7% yield) over the course of the experiment. The mass balance on fipronil and associated products was 42% at 672 h.

About
Cited by
Related
Download options Please wait...

Supplementary files

Article information

DOI
https://doi.org/10.1039/B307304A
Article type
Paper
Submitted
26 Jun 2003
Accepted
28 Oct 2003
First published
26 Nov 2003

J. Environ. Monit., 2004,6, 58-64

Permissions

Request permissions

The fate of fipronil in modular estuarine mesocosms

S. S. Walse, P. L. Pennington, G. I. Scott and J. L. Ferry, J. Environ. Monit., 2004, 6, 58 DOI: 10.1039/B307304A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements