Lethal toxicity of industrial detergent on bottom dwelling sentinels
We used fresh and brackish water shrimp (Desmoscaris trispinosa and Palaemonetes africanus), in sediment bioassays to assess the toxicity of an industrial detergent containing high levels of anionic surfactant (linear alkylbenzene sulphonate (LAS)). The Organization for Economic Cooperation and Deve...
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Veröffentlicht in: | International journal of sediment research 2009-12, Vol.24 (4), p.479-483 |
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description | We used fresh and brackish water shrimp (Desmoscaris trispinosa and Palaemonetes africanus), in sediment bioassays to assess the toxicity of an industrial detergent containing high levels of anionic surfactant (linear alkylbenzene sulphonate (LAS)). The Organization for Economic Cooperation and Development (OECD), # 218 direct sediment toxicity assessment was employed. The organisms were exposed to different concentrations (31.25, 62.5, 125,250 and 500 mg/kg) of the chemical (Neatex) in replicate treatments. Percentage mortality was measured as the ecological endpoint. Mean mortality and estimated lethal concentration LCso values varied with species type, concentration and exposure duration. The statistical variation in the observed mean mortality of the test organisms in the chemical and the control treatment shows that mortality may be induced by the effect of the chemicals. The lethal concentration (LCso) was significantly different at levels ofp 〈 0.05 for the fresh and brackish water experiments. Consequently, assessment of water and sediment quality as a result of chemical pollutants was necessary for protecting some of the more sensitive benthic invertebrates representing the major proportion of the diet of many species in the Niger Delta ecological zone. |
doi_str_mv | 10.1016/S1001-6279(10)60019-4 |
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The Organization for Economic Cooperation and Development (OECD), # 218 direct sediment toxicity assessment was employed. The organisms were exposed to different concentrations (31.25, 62.5, 125,250 and 500 mg/kg) of the chemical (Neatex) in replicate treatments. Percentage mortality was measured as the ecological endpoint. Mean mortality and estimated lethal concentration LCso values varied with species type, concentration and exposure duration. The statistical variation in the observed mean mortality of the test organisms in the chemical and the control treatment shows that mortality may be induced by the effect of the chemicals. The lethal concentration (LCso) was significantly different at levels ofp 〈 0.05 for the fresh and brackish water experiments. Consequently, assessment of water and sediment quality as a result of chemical pollutants was necessary for protecting some of the more sensitive benthic invertebrates representing the major proportion of the diet of many species in the Niger Delta ecological zone.</description><identifier>ISSN: 1001-6279</identifier><identifier>DOI: 10.1016/S1001-6279(10)60019-4</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Arthropod (shrimp) ; Brackish ; Chemicals ; Desmoscaris trispinosa ; Mortality ; Palaemonetes ; Palaemonetes africanus ; Sediment ; 尼日尔三角洲 ; 工业洗涤剂 ; 底栖无脊椎动物 ; 毒性评估 ; 直链烷基苯磺酸盐 ; 经济合作与发展组织 ; 致死浓度 ; 阴离子表面活性剂</subject><ispartof>International journal of sediment research, 2009-12, Vol.24 (4), p.479-483</ispartof><rights>2009 International Research and Training Centre on Erosion and Sedimentation and the World Association for Sedimentation and Erosion Research</rights><rights>Copyright © Wanfang Data Co. Ltd. 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The Organization for Economic Cooperation and Development (OECD), # 218 direct sediment toxicity assessment was employed. The organisms were exposed to different concentrations (31.25, 62.5, 125,250 and 500 mg/kg) of the chemical (Neatex) in replicate treatments. Percentage mortality was measured as the ecological endpoint. Mean mortality and estimated lethal concentration LCso values varied with species type, concentration and exposure duration. The statistical variation in the observed mean mortality of the test organisms in the chemical and the control treatment shows that mortality may be induced by the effect of the chemicals. The lethal concentration (LCso) was significantly different at levels ofp 〈 0.05 for the fresh and brackish water experiments. Consequently, assessment of water and sediment quality as a result of chemical pollutants was necessary for protecting some of the more sensitive benthic invertebrates representing the major proportion of the diet of many species in the Niger Delta ecological zone.</description><subject>Arthropod (shrimp)</subject><subject>Brackish</subject><subject>Chemicals</subject><subject>Desmoscaris trispinosa</subject><subject>Mortality</subject><subject>Palaemonetes</subject><subject>Palaemonetes africanus</subject><subject>Sediment</subject><subject>尼日尔三角洲</subject><subject>工业洗涤剂</subject><subject>底栖无脊椎动物</subject><subject>毒性评估</subject><subject>直链烷基苯磺酸盐</subject><subject>经济合作与发展组织</subject><subject>致死浓度</subject><subject>阴离子表面活性剂</subject><issn>1001-6279</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqFkEFP3DAQhXNoJSjwEypFvVAOoZPYseNTVVGglVbiAD1bjj0OXrI22F62--_x7qJeexrN03tvRl9VfW7hsoWWfbtvAdqGdVx8beGClUU09EN1_E8-qj6ltAQgYhjocfVzgflRzXUOf512eVsHWztv1ilHV2SDGeOEPtfB12PIOaxqs8F5dn6qU9GdxzmdVh-tmhOevc-T6s_N9cPVr2Zxd_v76sei0RS63Ay8x56woee9AWxHIExQw4zlijMxKDsipdZ2g-4ZJeMAnQCr1Uj6XhgDgpxUF4fejfJW-Ukuwzr6clFOS5-2S4kdgAAKe-_5wfscw8saU5Yrl3T5XHkM6yQ5ZaQw4VCc_cGpY0gpopXP0a1U3MoW5A6q3EOVO3o7aQ9V0pL7fsgVAvjqMMqkHXqNxkXUWZrg_tvw5f3yY_DTS2EqR6WfrJtRko53AxeCvAGnfYuT</recordid><startdate>20091201</startdate><enddate>20091201</enddate><creator>EZEMONYE, L.I.N.</creator><creator>OGELEKA, D.F.</creator><creator>OKIEIMEN, F.E.</creator><general>Elsevier B.V</general><general>Department of Animal and Environmental Biology (AEB), University of Benin%Department of Chemistry, University of Benin, Benin City, Edo Slate, Nigeria%Department of Chemistry, University of Benin, Benin City, Edo State, Nigeria</general><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>W92</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QH</scope><scope>7TN</scope><scope>7TV</scope><scope>7U7</scope><scope>7UA</scope><scope>C1K</scope><scope>F1W</scope><scope>H96</scope><scope>H97</scope><scope>L.G</scope><scope>2B.</scope><scope>4A8</scope><scope>92I</scope><scope>93N</scope><scope>PSX</scope><scope>TCJ</scope></search><sort><creationdate>20091201</creationdate><title>Lethal toxicity of industrial detergent on bottom dwelling sentinels</title><author>EZEMONYE, L.I.N. ; 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The Organization for Economic Cooperation and Development (OECD), # 218 direct sediment toxicity assessment was employed. The organisms were exposed to different concentrations (31.25, 62.5, 125,250 and 500 mg/kg) of the chemical (Neatex) in replicate treatments. Percentage mortality was measured as the ecological endpoint. Mean mortality and estimated lethal concentration LCso values varied with species type, concentration and exposure duration. The statistical variation in the observed mean mortality of the test organisms in the chemical and the control treatment shows that mortality may be induced by the effect of the chemicals. The lethal concentration (LCso) was significantly different at levels ofp 〈 0.05 for the fresh and brackish water experiments. Consequently, assessment of water and sediment quality as a result of chemical pollutants was necessary for protecting some of the more sensitive benthic invertebrates representing the major proportion of the diet of many species in the Niger Delta ecological zone.</abstract><pub>Elsevier B.V</pub><doi>10.1016/S1001-6279(10)60019-4</doi><tpages>5</tpages></addata></record> |
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subjects | Arthropod (shrimp) Brackish Chemicals Desmoscaris trispinosa Mortality Palaemonetes Palaemonetes africanus Sediment 尼日尔三角洲 工业洗涤剂 底栖无脊椎动物 毒性评估 直链烷基苯磺酸盐 经济合作与发展组织 致死浓度 阴离子表面活性剂 |
title | Lethal toxicity of industrial detergent on bottom dwelling sentinels |
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