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Titolo:
Effects and risk assessment of linear alkylbenzene sulfonates in agricultural soil. 4. The influence of salt speciation, soil type, and sewage sludgeon toxicity using the collembolan Folsomia fimetaria and the earthworm Aporrectodea caliginosa as test organisms
Autore:
Holmstrup, M; Krogh, PH; Lokke, H; de Wolf, W; Marshall, S; Fox, K;
Indirizzi:
Natl Environm Res Inst, Dept Terr Ecol, DK-8600 Silkeborg, Denmark Natl Environm Res Inst Silkeborg Denmark DK-8600 8600 Silkeborg, Denmark NV Procter & Gamble Eurocor SA, European Tech Ctr, B-1853 Strombeek Bever,Belgium NV Procter & Gamble Eurocor SA Strombeek Bever Belgium B-1853 er,Belgium Unilever Res Port Sunlight Lab, Wirral L63 3JW, Merseyside, England Unilever Res Port Sunlight Lab Wirral Merseyside England L63 3JW England
Titolo Testata:
ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY
fascicolo: 8, volume: 20, anno: 2001,
pagine: 1680 - 1689
SICI:
0730-7268(200108)20:8<1680:EARAOL>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
AMENDED SOILS; FIELD; ADSORPTION; BEHAVIOR; LAS;
Keywords:
bioavailability; linear alkylbenzene sulfonates; sewage sludge; soil invertebrates; soil type;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
34
Recensione:
Indirizzi per estratti:
Indirizzo: Holmstrup, M Natl Environm Res Inst, Dept Terr Ecol, Vejlsovej 25,POB 314,DK-8600 Silkeborg, Denmark Natl Environm Res Inst Vejlsovej 25,POB 314 Silkeborg Denmark DK-8600
Citazione:
M. Holmstrup et al., "Effects and risk assessment of linear alkylbenzene sulfonates in agricultural soil. 4. The influence of salt speciation, soil type, and sewage sludgeon toxicity using the collembolan Folsomia fimetaria and the earthworm Aporrectodea caliginosa as test organisms", ENV TOX CH, 20(8), 2001, pp. 1680-1689

Abstract

Sewage sludge applied to agricultural soils often contains linear alkylbenzene sulfonates (LAS) in the range of 1 to 10 g/kg dry weight, and their toxicity to relevant soil organisms should, therefore, be assessed to ensure safe use of sewage sludge as a fertilizer. Studies of LAS toxicity to soil organisms are few, and to our knowledge, factors that may influence the toxicity in the field have not been studied in detail. In this paper, we report on the influence of speciation of LAS in the test solution added to soil (soluble Na-LAS vs poorly soluble Ca-LAS or Mg-LAS), the influence of soil type, and the modifying effects of sludge amendment on the toxicity of LAS;These issues were investigated using reproduction of Collembola and growthof juvenile earthworms as test parameters. Speciation of the LAS added to test soil did not have any influence on toxicity for any of the test species. Likewise, in three different agricultural soils (sand, loam, and clay), we found almost equal toxicities. The LAS added to test soil in a sludge-water suspension was equally toxic as when it was added in an aqueous solution. However, anaerobic incubation for 7 and 14 d of the LAS-sludge suspension (with no decay of LAS) caused the toxicity to increase almost threefold in both collembolan and earthworm. The relationships between soil constituents, bioavailability, and toxicity are also discussed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 00:32:45