Accession Number : ADA326455
Title : Evaluation of Biomonitoring Systems for Assessment of Contaminated Waters and Sediments at U.S. Army Installations.
Descriptive Note : Annual rept. 31 Jun 94-30 Jun 95,
Corporate Author : WYE RESEARCH AND EDUCATION CENTER QUEENSTOWN MD
Personal Author(s) : Burton, Dennis T. ; Herriott, Randall S. ; Turley, Steven D.
PDF Url : ADA326455
Report Date : NOV 1995
Pagination or Media Count : 1189
Abstract : ) Contaminated groundwater, which contained multiple heavy metals and chlorinated aliphatic hydrocarbons, from the Canal Creek aquifer (well CC-27B) of the U.S. Army Aberdeen Proving Ground-Edgewood Area, Aberdeen, Maryland, was evaluated for toxicity to aquatic organisms. Toxicity was detected at various groundwater concentrations by 6 of 8 biomonitoring systems. The lowest concentration of groundwater that caused no observable adverse effect (NOEC) at pH 4 was 10% ground water by volume in the following assays: 4-d green alga Selenastrum capricornutum) growth est; 7-d cladoceran (Ceriodapnia dubia) survival ana reproduction test; and 96-h frog (Xenopus laevis) embryo teratogenesis assay - Xenopus (FETAX). A NOEC of 18% groundwater volume occurred in 7-d fathead minnow (Pimephales promelas) survival and growth tests. Buffered groundwater (pH 7) was less toxic and/or not toxic in 7-d fathead minnow tests and in FETAX assays. The 10% groundwater by volume NOECs for the green alga and cladoceran at pH 4 did not change when the organisms were exposed to buffered groundwater at pH 7. The Ames assay for mutagenicity was negative in all cases. Sporadic incidences of lesions were found in Japanese medaka(Oryzias latipes) at concentrations up to 25% groundwater by volume after 9 months of exposure. Fish growth was affected by 9 months of exposure; fish were smaller when grown in groundwater diluted with Wear Branch of Canal Creek water.
Descriptors : *GROUND WATER, *WATER POLLUTION, *CONTAMINATION, *AQUATIC ORGANISMS, *ALIPHATIC HYDROCARBONS, *CHLORINATED HYDROCARBONS, TEST AND EVALUATION, BUFFERS, MARYLAND, WATER, TOXICITY, GROWTH(GENERAL), ARMY FACILITIES, SURVIVAL(GENERAL), AQUIFERS, ADVERSE CONDITIONS, MONITORS, BIOLOGICAL DETECTION, TERATOGENIC COMPOUNDS, EMBRYOS, ASSAYING, CONCENTRATION(CHEMISTRY), FISHES, STREAMS, CANALS, HEAVY METALS.
Subject Categories : Biochemistry
Hydrology, Limnology and Potamology
Water Pollution and Control
Distribution Statement : APPROVED FOR PUBLIC RELEASE