EPA Science Inventory

Occurences and Fate of DDT Principal Isomers/Metabolites, DDA, and o,p'-DDD Enantiomers in Fish, Sediment and Water at a DDT-Impacted Superfund Site

Citation:

Garrison, W., Mike Cyterski, K. Roberts, D. Burdette, J. Williamson, AND J. Avants. Occurences and Fate of DDT Principal Isomers/Metabolites, DDA, and o,p'-DDD Enantiomers in Fish, Sediment and Water at a DDT-Impacted Superfund Site. ENVIRONMENTAL POLLUTION. Elsevier Science Ltd, New York, NY, 194:224-34, (2014).

Impact/Purpose:

Article published in the journal, Environmental Pollution.

Description:

In the 1950s and 60s, discharges from a DDT manufacturing plant contaminated a tributary system of the Tennessee River near Huntsville, Alabama, USA. Regulatory action resulted in declaring the area a Superfund site which required remediation and extensive monitoring. Monitoring data collected from 1988, after remediation, through 2011 showed annual decreases approximating first-order decay in concentrations of total DDT and its six principal congeners (p,p’-DDT, o,p’-DDT, p,p’-DDD, o,p’-DDD, p,p’-DDE and o,p’-DDE) in filets from three species of fish. As of 2013, these concentrations met the regulatory requirements of 5 mg/kg or less total DDT for each fish tested. The enantiomer fractions (EF) of chiral o,p’-DDD in smallmouth buffalo and channel catfish were always below 0.5, indicating preferential decay of the (+)-enantiomer of this congener; this EF did not change significantly over 15 years. The often-neglected DDT metabolite p,p’-DDA was found at a concentration of about 20 ug/l in the ecosystem water.

URLs/Downloads:

http://www.sciencedirect.com/science/article/pii/S0269749114003170   Exit

Record Details:

Record Type: DOCUMENT (JOURNAL/PEER REVIEWED JOURNAL)
Product Published Date: 11/01/2014
Record Last Revised: 12/01/2014
OMB Category: Other
Record ID: 296405

Organization:

U.S. ENVIRONMENTAL PROTECTION AGENCY

OFFICE OF RESEARCH AND DEVELOPMENT

NATIONAL EXPOSURE RESEARCH LABORATORY

ECOSYSTEMS RESEARCH DIVISION