Abstract：Acute and 10-d sub-chronic toxicities of 2,4-dichlorophenol (2,4-DCP), 2,4,6-trichlorophenol (2,4,6-TCP) and pentachlorophenol (PCP) to Chinese indigenous duckweed Soirodela polyrhiza were tested to assess the toxicity of chlorophenols to aquatic plant. The measurement endpoints during acute and sub-chronic exposure were growth and chlorophyll, respectively. The result showed that the 4-d IC50 of 2,4-DCP, 2,4,6-TCP and PCP to S. polyrihiza were 12.73, 8.49and 1.12mg/L, respectively. The maximum acceptable toxicant concentration (MATC) based on concentration of chlorophyll were 2.24, 1.58 and 0.35mg/L respectively for 2,4-DCP, 2,4,6-TCP and PCP corresponding to the acute-chronic ratio (ACR) which were 5.68, 5.37and 3.20, respectively.
金小伟, 查金苗, 王子健, 滕恩江, 吕怡兵. 氯酚类化合物对紫背浮萍生长及叶绿素含量的影响[J]. 中国环境科学, 2013, 33(12): 2257-2261.
JIN Xiao-Wei, CHA Jin-Miao, WANG Zi-Jian, TENG 恩Jiang, 吕Yi-Bing . Growth and chlorophyll content response of Soirodela polyrhiza to chlorophenols. CHINA ENVIRONMENTAL SCIENCECE, 2013, 33(12): 2257-2261.
