Comparative kinetics study of the evolution of freshwater aquatic toxicity and biodegradability of linear and branched alkylbenzene sulfonates

Journal Article · Wed Oct 01 00:00:00 EDT 1986 · Ecotoxicol. Environ. Saf.; (United States)

DOI:https://doi.org/10.1016/0147-6513(86)90049-7· OSTI ID:7025322

Gard-Terech, A; Palla, J C

Evolution of both primary biodegradability and acute toxicity to daphnia and zebra fish of a linear alkylbenzene sodium sulfonate (LAS) and a branched alkylbenzene sodium sulfonate (BAS) have been measured simultaneously. In six of eight experiments, LAS was biodegraded to 90% in 7 days and BAS to 70% in 7 days. In the two other experiments, both LAS and BAS have shown the same biodegradation speed and reached the same biodegradation level in 7 days: 45% in one experiment and 55% in the other. The composition of bacteria population and the level of cellular ATP of the inoculum play a decisive role in the biodegradation. These results confirm that it is essential to know the composition of bacteria population present in the inoculum as well as their biochemical characteristics to accurately interpret results of biodegradation tests. In the case of a rapid primary biodegradation of LAS and BAS, the acute toxicity of LAS remains three times as high as that of BAS for at least 24 hr toward daphnia and 48 hr toward zebra fish. Their acute toxicity to daphnia and zebra fish become equivalent only after 72 hr. When primary biodegradation of both products is slower, the acute toxicity of LAS remains higher than that of BAS for more than 7 days.

• Research Organization: Centre de Recherches de Decines, Decines, Charpieu, France
• OSTI ID: 7025322
• 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

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
AQUATIC ORGANISMS
ARTHROPODS
ATP
BACTERIA
BIODEGRADATION
BRANCHIOPODS
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
CRUSTACEANS
DAPHNIA
DECOMPOSITION
FISHES
FRESH WATER
HYDROGEN COMPOUNDS
INVERTEBRATES
KINETICS
MICROORGANISMS
NUCLEOTIDES
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
SEWAGE
SULFONATES
TOXICITY
VERTEBRATES
WASTES
WATER