Evaluation of Biomonitoring Systems for Assessment of Contaminated Waters and Sediments at U.S. Army Installations
Abstract
Dilsopropyl methyiphosphonate (DIMP) was found in the vicinity of the Building E3640 Process Laboratory (Building E3640) during a Remedial Investigation! Feasibility Study (Rl/FS) for the Canal Creek Study Area of the Aberdeen Proving Ground - Edgewood Area. DIMP occurred in 13 of 15 subsurface soil samples at the site. The concentrations ranged from a minimum of 0.07 up to a maximum of 4.8 mg!kg (dry wt.). DIMP was also found in the surficial groundwater at the site where the concentrations ranged from 0.08 to 6.02 mg/L. A screening-level ecological risk assessment showed that DIMP posed a negligible risk to plants and animals at the Building E3640 site. The conclusion was based on the fact that the hazard quotients (HO) of all potential receptors in the study area were <1. The HQs for soil microorganisms, soil and litter invertebrates, and terrestrial plants were estimated to be 0.06, 0.05, and 0.60, respectively. The HQs for aquatic microorganisms (bacteria), aquatic algae, aquatic invertebrates, fish, and amphibians were 0.06, 0.01, 0.10, 0.04, and 0.02, respectively. The HQs for birds and mammals were 0.63 and 0.76, respectively. All HQs were based on conservative or worst case assumptions.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1999
- Accession Number
- ADA385302
Entities
People
- Dennis T. Burton
Organizations
- University of Maryland