Accession Number:

ADA129731

Title:

An Investigation of the Presence of N,N'-Bis(2,4,6-Trichlorophenyl)urea in Estuarine Sediments of Aberdeen Proving Ground, Maryland (Edgewood Area).

Descriptive Note:

Technical rept. Jan-Sep 82,

Corporate Author:

ARMY MEDICAL BIOENGINEERING RESEARCH AND DEVELOPMENT LAB FORT DETRICK MD

Personal Author(s):

Report Date:

1983-04-01

Pagination or Media Count:

27.0

Abstract:

N,N -Bis2,4,6-trichlorophenylurea is present in the sediments of Canal Creek in the Edgewood area of Aberdeen Proving Ground, MD. The highest concentrations are found in the top 2 inches of sediment, 100-300 microgramsg, and the concentration declines with increasing depth. Below a 6-inch depth there is little of no contamination. Although the detection limit of the HPLC method descrived here is 5 micrograms of dry sediment, modification of this method to lower levels is possible. The chemical literature gives little information concerning this material, but does indicate a very high stability to chemical hydrolysis. The solubility in water is quite low 82 microgram at 22 degrees and the estimted octanolwater partition coefficient is high log K 5. The conjunction of these properties points to long persistence of the compound in the environment.

Subject Categories:

  • Physical Chemistry
  • Water Pollution and Control

Distribution Statement:

APPROVED FOR PUBLIC RELEASE