LINEAR ALKYLBENZENE SULFONATE (LAS) - UNEP Chemicals

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OECD SIDS LINEAR ALKYLBENZENE SULFONATE (LAS) Reference and year LC50 (mg/L) 20. Lewis, 1983 21. Verge & Moreno, 2000 22. Hooftman and van Drongelen- Sevenhuijsen 1990 4.8 6.3 1.62 Lab Test Procedure TNO ASTM OECD 202, 1984 OECD 202, 1984 GLP Static/flow through No Static # replicates Indiv./rep Nominal conc Test T range (ºC) Algae, Selenastrum capricornutum and Scenedesmus subspicatus Reference and year 23. 43235, P&G 1991 24. Lewis, 1986; Lewis and Hamm, 1986 25. Verge and Moreno, 1996 26. Scholz, 1992 27. Scholz, 1994 ErC50 (mg/L) 35.5 29 163 127.9 82 Exposure period 96 Hr 96 Hr 72 Hr 72 Hr 72 Hr No Yes Static Static 3 4 4 5 5 5 Control, 3.2, 5.6, 10, 18, 32, 56, 100 20±1 20±1 Hard. (mg CaCO3/L) Test species Lab Test Procedure GLP # replicates # cells./rep Nominal conc., mg/L Selenastrum capricornutum Selenastrum capricornutum Scenedesmus subspicatus Scenedesmus subspicatus Scenedesmus subspicatus Bionomics OECD 201 ASTM, 1984 OECD, 1984 Dir 88/302/EEC, 1988 Dir 92/69/EEC, 1992 Yes No No Yes Yes Duplicate tests and quadriuplicate controls Triplicate test concentrations and six control replicates 10 4 cells/ml 10 4 20,000 cells/ml 20,000 cells/ml 131 200 Control, 1.0, 3.1, 10, 32, 99, 180, 320, 560 Control, 0.6, 2.4, 10, 40, 160 Control, 0.1, 0.4, 1.6, 6.4, 25, 160 Measured conc. Measured as MBAS Nominal Measured Test T range (ºC) 21-22 21.2- 25.6 21-22 24+/-2 24+/-2 Hard. (mg NaHCO3/ L) Control mortality Measured conc. Remarks/deviation from protocol Low value; dossier 4.2A(a) Control 96h count Remarks/deviation from protocol UNEP PUBLICATIONS 96 150 137 measured Nominal Nominal Nominal 3.610 6 cells/ml White precipitate at 2 highest concentrations. Low value; dossier 4.3(a) Dossier 4.3(d) Dossier 4.3(f) Dossier 4.3(g)
OECD SIDS LINEAR ALKYLBENZENE SULFONATE (LAS) List of Published References 10. Lewis, M.A., and Perry, R.L., 1981; Acute Toxicities of Equimolar and Equitoxic Surfactant mixtures to Daphnia magna and Lepomis macrochirus. 11. Holman, W. and Macek, K., 1980; An aquatic safety assessment of Linear Alkylbenzene Sulfonate (LAS): Chronic effects on Fathead minnows. Transactions of the American Fisheries Society 109, 122-131. 16. Taylor, M.J.; Effect of Diet on the Sensitivity of Daphnia magna to Linear Alkylbenzene Sulfonate, Aquatic Toxicology and Hazard Assessment: Seventh Symposium, ASTM STP 854, R.D. Cardwell, R. Purdy, and R.C. Bahner, Eds, American Society for Testing and Materials, Philadelphia, 1985, pp 53-72. 17. Lewis, M.A., and Perry, R. L.,1981; Acute Toxicities of Equimolar and Equitoxic Surfactant Mixtures to Daphnia magna and Lepomis macrochirus. Aquatic Toxicology and Hazard Assessment: Fourth Conference, ASTM STP 737, D. R. Branson and K.L. Dickson, Eds, American Society for Testing and Materials, 1981, pp 402-418. 18. Lewis, M.A. and Suprenant, D.,1983; Comparative Acute Toxicities of Surfactants to Aquatic Invertebrates. Ecotoxicology and Environmental Safety, 7, 313-322 (1983). 19. Maki, A. and Bishop, W., 1979; Acute Toxicity Studies of Surfactants to Daphnia magna and Daphnia pulex. Arch. Environm. Contam. Toxicol. 8, 599-612 (1979). 20. Lewis, M.A., 1983; Effect of loading density on the acute toxicities of Surfactants, Copper, and Phenol to Daphnia magna Straus. Arch. Environ. Contam. Toxicol. 12, 51-55. 21. Verge, C. and Moreno A.; 2000; Effect of Anionic Surfactants on Daphnia magna. Tenside Surf. Det. 37 (2000) 3. 24. Lewis, M.A., 1986; Comparison of the effects of surfactants on freshwater phytoplankton communities in experimental enclosures and on algal population growth in the laboratory. Environ. Toxicol. Chem., Vol. 5, pp 319-322; Lewis, M.A., and Hamm, B.G., 1986; Environmental modification of the photosynthetic response of lake plankton to surfactants and significance to a laboratory-field comparison. Water Res. 20:1575-1582. 25. Verge, C., and Moreno A., 1996; Toxicity of anionic surfactants to green microalgae Scenedesmus subspicatus and Selenastrum capricornutum. Tenside Surf. Det. 33 , 166-169. UNEP PUBLICATIONS 97
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LINEAR ALKYLBENZENE SULFONATE (LAS) - UNEP Chemicals

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