Bioaccumulation of Herbicide Atrazine in Carassius auratus
Bioaccumulation of Herbicide Atrazine in Carassius auratus
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DOI：
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发表时间：
2009
影响因子：
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通讯作者：
Qu Jian-hong
中科院分区：
文献类型：
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作者：
Qu Jian-hong
阿特拉津是中国和世界上使用最广泛的除草剂之一。由于其长期的持久性，已存在于许多地表水和地下水中，污染鱼类等非目标生物，威胁人类的饮用水。研究了阿特拉津在鲫鱼(Carassius Auratus)肝脏、肾脏和肌肉中的生物浓度。各组鱼分别暴露于浓度为0、0.1、0.5、1.0、5.0和10.0 mg·L-1的阿特拉津。分别于实验第3、6、10、14、19、24天采血，研究阿特拉津在肝脏、肾脏和肌肉中的生物浓缩系数(BCF)。结果表明，阿特拉津在各器官中的生物富集率很快，在肝脏、肾脏和肌肉中仅需19d即可达到稳定状态，但在肝脏、肾脏和肌肉中的生物富集率很低。阿特拉津在肝脏、肾脏和肌肉中的生物滤过率与水体中的阿特拉津浓度呈显著负相关，肝脏、肾脏和肌肉中阿特拉津的最大和最低浓度分别为13.08、11.00和6.02，最小的分别为5.22、4.37和2.94。此外，相同浓度的阿特拉津对鲫鱼各器官的生物浓缩能力存在差异，肝脏、肾脏和肌肉的生物富集能力呈现出肝肾肌的趋势。
Atrazine is one of the most widely used herbicides in China and worldwide. Due to its long persistence, it has been present in many surface and ground waters, contaminating nontarget organisms such as fish and threatening drinking water of human being. The experiment was performed to research the bioconcentration of atrazine in liver, kidney and muscle of crucian(Carassius auratus). Groups of fish were exposed to atrazine at concentrations of 0, 0.1, 0.5, 1.0, 5.0 and 10.0 mg·L-1, respectively. Crucian were exposd to all the concentrations were sampled after day 3, 6, 10, 14, 19 and 24 of the experiment, respectively, to study the bioconcentration factors(BCF) of atrazine in liver, kidney and muscle of crucian. Results showed that the bioconcentration velocities of atrazine in the organs were very quickly, and it just needed 19 days to achieve stable state in liver, kidney and muscle of crucian, but the bioconcentration factors of atrazine in liver, kidney and muscle of crucian were found to be quite low. There was a significant inverse correlation between BCF of atrazine in liver, kidney and muscle of crucian and atrazine concentration in water, so the biggest and the least BCF of atrazine in liver, kidney and muscle of crucian were in lowest and the highest concentration groups, respectively, and the biggest BCF were 13.08, 11.00 and 6.02, respectively, and the least BCF were 5.22, 4.37 and 2.94, respectively. What was more, there were difference in bioconcentration capabilities between organs when the crucian were exposed to the same concentration of atrazine, and the BCF in liver, kidney and muscle taken on the trend of liverkidneymuscle.