Arsenic toxicity changes in the presence of sediment

Journal Article · Sun Mar 01 00:00:00 EST 1987 · Bull. Environ. Contam. Toxicol.; (United States)

DOI:https://doi.org/10.1007/BF01606619· OSTI ID:6149946

Burton, Jr, G A; Lazorchak, J M; Waller, W T; Lanza, G R

Arsenic has been widely used in herbicides resulting in high soil and sediment concentrations in some areas. D. magna has been a commonly used indicator of aquatic toxicity and standardized methods have been developed for acute toxicity testing. Arsenic is quite similar chemically to phosphorus and sulfur, thus it produces toxic effects, in part, by replacing these elements in essential metabolic processes. The effect of sediments on ameliorating metal toxicity to Daphnia has not been reported. However, arsenic and other metalloids/metal are known to concentrate in sediment and adsorb to particulates. This study investigated the effect of sediments on standard arsenite LC50 determinations with D. magna and alkaline phosphatase activity (APA).

• Research Organization: Univ. of Texas, Richardson
• OSTI ID: 6149946
• Journal Information: Bull. Environ. Contam. Toxicol.; (United States), Vol. 38:3
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ARSENIC COMPOUNDS
TOXICITY
DAPHNIA
ENZYME ACTIVITY
ALKALINE PHOSPHATASE
LETHAL DOSES
MORTALITY
SEDIMENTS
ANIMALS
AQUATIC ORGANISMS
ARTHROPODS
BRANCHIOPODS
CRUSTACEANS
DOSES
ENZYMES
ESTERASES
HYDROLASES
INVERTEBRATES
PHOSPHATASES
560300* - Chemicals Metabolism & Toxicology