Influence of benzene on the phytoplankton and on Daphnia pulex in compartments of an experimental pond

Journal Article · Tue Oct 01 00:00:00 EDT 1985 · Ecotoxicol. Environ. Saf.; (United States)

DOI:https://doi.org/10.1016/0147-6513(85)90069-7· OSTI ID:5842843

Lay, J P; Schauerte, W; Peichl, L; Klein, W; Korte, F

Benzene, with initial concentrations of 100 and 50 mg per liter, was dosed in duplicates into four compartments of a small pond. The decrease of chemical concentration in the water was exponential with a mean half-life of 4.7 +/- 0.9 days. Following benzene application, the phytoplankton density and diversity slightly increased relative to the controls. Both concentrations were lethal for the daphnids present. During 24-hr in vitro tests with Daphnia pulex (initial benzene concentrations less than 50 mg per liter), a direct correlation between mobility and decreasing chemical concentration was observed.

• Research Organization: Institut fuer Oekologische Chemie, Neuherberg, Germany, F.R.
• OSTI ID: 5842843
• Journal Information: Ecotoxicol. Environ. Saf.; (United States), Journal Name: Ecotoxicol. Environ. Saf.; (United States) Vol. 2; ISSN EESAD
• Country of Publication: United States
• Language: English

Related Subjects

560304* -- Chemicals Metabolism & Toxicology-- Invertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
AROMATICS
ARTHROPODS
BENZENE
BIOLOGICAL EFFECTS
BRANCHIOPODS
CRUSTACEANS
DAPHNIA
DOSE-RESPONSE RELATIONSHIPS
ELEMENTS
HYDROCARBONS
INVERTEBRATES
NONMETALS
ORGANIC COMPOUNDS
OXYGEN
PHYTOPLANKTON
PLANKTON
PONDS
SOLUBILITY
SURFACE WATERS
TOXICITY