Surfactant (Genapol OX-80) toxicity to Selenastrum capricornutum

被引:15
作者
Anastácio, PM
Lützhoft, HCH
Halling-Serensen, B
Marques, JC
机构
[1] Univ Evora, Dept Ecol, IMAR, P-7001 Evora, Portugal
[2] Royal Danish Sch Pharm, Dept Analyt & Pharmaceut Chem, Sect Environm Chem, DK-2100 Copenhagen O, Denmark
[3] Univ Coimbra, Dept Zool, IMAR, P-3000 Coimbra, Portugal
关键词
algae; EC50; crayfish; rice;
D O I
10.1016/S0045-6535(99)00275-1
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
A non-ionic surfactant (Genapol OX-80) was proposed as a means of reducing destructive crayfish activity in rice. In order to study the toxicity of this product on algae, a test in accordance to the ISO 8692 protocol (1989) was performed. The growth inhibiting effect of the pure formulation of Genapol OX-80 was studied on Selenastrum capricornutum in the concentration range of 0.01-1.0 mg/l. The result indicated a 72 h EC50-value of 0.5 mg/l. The suggested field concentration of approximately 50 mg/l is therefore two orders of magnitude above the algal EC50-value. From our findings it is expected that the impact on the rice field algae will not be negligible. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码:835 / 838
页数:4
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