Evaluation of Biomonitoring Systems for Assessment of Contaminated Waters and Sediments at U.S. Army Installations.
Abstract
Diisopropyl methylphosphonate (DIMP) is present in the surficial groundwater in the vicinity of the Building E3640 Process Laboratory at the U.S. Army Aberdeen proving Ground-Edgewood Area, Aberdeen, Maryland. The acute and chronic toxicity of DIMP and the possible interactions of DIMP with other contaminants that may be present in the groundwater and the parent compound were both evaluated using the following bioassay systems: 96-h green algal (Selenastrum capricomutum) growth test; 7-d cladoceran (Ceriodaphnia dubia) survival and reproduction test; and 7-d larval fathead minnow (Pimephales promelas) survival and growth test. In addition, survival and developmental toxicity were determined by the 96-h frog embryo teratogenesis assay-Xenopus (FETAX) using the African clawed frog, Xenopus laevis. The groundwater, which contained DIMP concentrations up to 6.02 mg/L, was not acutely or chronically toxic to the alga, cladoceran, frog, or fish. The no-observed-adverse-effect levels (NOAEL) and lowest-observed-adverse-effect levels (LOAEL) for short-term chronic exposure to the parent compound were as follows: alga (reduction in growth) = 711 and 1,423 mg/L; cladoceran (reduction in neonate production) = 142 and 285 mg/L; and fish (reduction in growth) = 142 and 285 mg/L. The NOAEL and LOAEL for the frog embryo (mortality) = 398 and 569 mg/L.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1999
- Accession Number
- ADA377369
Entities
People
- Dennis T. Burton
- Steven D. Turley
Organizations
- University of Maryland