Jacomini Analu Egydio, Avelar Wagner Eustáquio Paiva, Martinêz Alexandre Souto, Bonato Pierina Sueli
Department of Biology, Faculty of Phylosophy, Sciences and Arts of Ribeirão Preto, São Paulo University, Ribeirão Preto, São Paulo State, Brazil.
Arch Environ Contam Toxicol. 2006 Oct;51(3):387-91. doi: 10.1007/s00244-005-0238-x. Epub 2006 Jul 21.
The bioaccumulation of atrazine in bivalves is expected due to its wide use in agriculture and its moderate water solubility (33 mg/l). To assess the capacity of bioaccumulation, we performed a laboratory study in which two bivalves species (Anodontites trapesialis and Corbicula fluminea) were exposed to atrazine (concentrations of 0.06 to 0.34 microg/ml) during 48 h. The results showed that both bivalve species were able to bioaccumulate atrazine in their tissues. In another experiment, groups of bivalves from the specie A. trapesialis were exposed to atrazine at the concentration of 1 mug/ml and different organs of these animals were analyzed. The visceral mass, foot and mantle plus siphon showed the highest values of atrazine bioaccumulation.
由于阿特拉津在农业中的广泛使用及其适度的水溶性（33毫克/升），预计其会在双壳贝类中生物累积。为评估生物累积能力，我们进行了一项实验室研究，让两种双壳贝类（梯形无齿蚌和河蚬）在48小时内暴露于阿特拉津（浓度为0.06至0.34微克/毫升）。结果表明，两种双壳贝类都能够在其组织中生物累积阿特拉津。在另一项实验中，将梯形无齿蚌群体暴露于浓度为1微克/毫升的阿特拉津，并对这些动物的不同器官进行分析。内脏团、足部以及外套膜加虹吸管显示出最高的阿特拉津生物累积值。
