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Arsenic concentration in water and bovine milk in Cordoba, Argentina. Preliminary results.

机译:阿根廷科尔多瓦水和牛乳中的砷浓度。初步结果。

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The groundwater and milk samples from 30 small, medium and large dairy farms in Cordoba, Argentina, were analysed to determine the levels of arsenic during August 2002 and April 2003. It was shown that arsenic concentrations in all water samples were over the suggested level for cattle intoxication and ranged from 0.23-2.54 mg/litre. The milk of dairy cows from 5 farms which used phreatic groundwater and deep wells had arsenic concentrations of 2.8-10.5 and 0.5 ng/g, respectively. Only one sample had an arsenic concentration slightly over 10 ng/g. The calculated biotransfer factor (BTF) values were 5.2x10-5-1.8x10-4. The ingestion of bovine milk is one of the most important pathways of exposure to chemicals and the accumulation of persistent organic chemicals in tissues in the agricultural food chain.
机译:分析了阿根廷科尔多瓦30个大小,中型和大型奶牛场的地下水和牛奶样品,以确定2002年8月至2003年4月期间的砷含量。结果表明,所有水样中的砷浓度均超过建议值。牛中毒,范围为0.23-2.54 mg / L。来自5个使用潜水地下水和深井的农场的奶牛的牛奶中砷的含量分别为2.8-10.5和0.5 ng / g。只有一个样品的砷浓度略高于10 ng / g。计算的生物转移因子(BTF)值为5.2x10-5-1.8x10-4。摄入牛乳是暴露于化学物质以及持久性有机化学物质在农业食物链中的组织中积累的最重要途径之一。

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