EPA Science Inventory

TOXICITY OF FIPRONIL ENANTIOMERS TO THE WATER FLEA AND BLACK FLY

Citation:

KONWICK, B., A. W. GARRISON, A. FISK, M. BLACK, AND J. OVERMYER. TOXICITY OF FIPRONIL ENANTIOMERS TO THE WATER FLEA AND BLACK FLY. Presented at 230th American Chemical Society National Meeting, Washington, DC, August 28 - September 01, 2005.

Description:

In this research, we analyzed the enantiomer-specific toxicity of fipronil using two aquatic invertebrate species. Acute toxicity to Ceriodaphnia dubia (water flea) indicated that the (+) enantiomer was significantly more toxic than the (-) enantiomer, with about a 3-fold difference in LC50 values. For Simulium vittatum IS-7 (black fly), both fipronil enantiomers were equally toxic. However, the response to fipronil was markedly different between the two invertebrate classes with the black fly being nearly 2 orders of magnitude more sensitive than the water flea.

Purpose/Objective:

To determine the environmental occurrences, fate, and effects of the enantiomers of selected chiral pesticides and other chiral pollutants.

URLs/Downloads:

Record Details:

Record Type: DOCUMENT (PRESENTATION/ABSTRACT)
Start Date: 08/29/2005
Completion Date: 08/29/2005
Record Last Revised: 06/21/2006
Record Created: 06/21/2005
Record Released: 06/21/2005
Record ID: 134968

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL EXPOSURE RESEARCH LAB

ECOSYSTEMS RESEARCH DIVISION

PROCESSES & MODELING BRANCH