Skip common site navigation and headers
United States Environmental Protection Agency
Exposure Research
Begin Hierarchical Links EPA Home > Research & Development > Exposure Research > Publications/Presentations > End Hierarchical Links

 

Transformation and Transport of Vinclozolin from Soil to Air

spacer
spacer
Abstract: A laboratory chamber was designed and used to determine the headspace flux of the fungicide vinclozolin (3-(3,5-dichlorophenyl)-5-methyl-5-vinyl-oxzoli-dine-2.4-dione) and its three degradation products from chamber surfaces, 20-30 mesh Ottawa sand, and sterilized and nonsterile North Carolina Piedmont aquic hapludult soils following fungicide spray applications. Results indicate that vinclozolin and its degradation products are influenced by the presence of soil particles, fluid-filled pore space, soil organic matter and clay content, and microbes. The formation of 2-[(3,5-dichlorophenyl)-carbamoyl]oxy-2-methyl-3-butenoic acid (Ml), was highest in pore water with elevated pH levels, and the degradation is enhanced by the presence of microbes. Ml was also released from lower pH soil pore water, especially when the fungicide was incorporated into the soil. Unlike prior studies of vinclozolin degradation in solutions, this study found that, in soil, both Ml and 3',5'-dichloro-2-hydroxy-2-methylbut-3-enanilide (M2) can be produced in the same soil column. These results indicate that engineering controls and agricultural practices following application can affect the amount and pathway of vinclozolin's degradation.

This work has been funded in part by the EPA. It has been subjected to Agency review and approved for publication. Mention of trade names or commercial products does not constitute endorsement of recommendation for use.
spacer
Citation:Vallero, D. A., and J. J. Peirce. Transformation and Transport of Vinclozolin from Soil to Air. JOURNAL OF ENVIRONMENTAL ENGINEERING 128(3):261-268, (2002).
spacer
spacer
Contact: Liz Hope - (919) 541-2785 or hope.elizabeth@epa.gov
spacer
Division: Human Exposure & Atmospheric Sciences Division
spacer
Branch: Exposure Measurements & Analysis Branch
spacer
Product Type: Journal
spacer
Published: 03/01/2002
spacer
Related Entries:
spacer
Bullet Item Methods Development at the Near Lab Ecological Research Area (Nlera) Located in the Neuse River Basin.
spacer Relationship Reason:   A Project of the Product
spacer
spacer
spacer

 

ORD Home | Search EPA | Search NERL | Search EIMS | Contacts | Help

 
Begin Site Footer

EPA Home | Privacy and Security Notice | Contact Us

Last Updated on Monday, October 22, 2007
URL: http://cfpub.epa.gov