受阿兹纳尔科拉尔有毒泄漏影响的多尼亚纳国家公园周边地区湿地鸟类体内重金属和砷的积累。
Accumulation of heavy metals and As in wetland birds in the area around Doñana National Park affected by the Aznalcollar toxic spill.
作者信息
Hernández L M, Gómara G, Fernández M, Jiménez B, González M J, Baos R, Hiraldo F, Ferrer M, Benito V, Suñer M A, Devesa V, Muñoz O, Montoro R
机构信息
Departamento de I.A. y Química Ambiental, IQOG, CSIC, Madrid, Spain.
出版信息
Sci Total Environ. 1999 Dec 6;242(1-3):293-308. doi: 10.1016/s0048-9697(99)00397-6.
The impact of the spill from the mine in Aznalcollar (Seville, Spain) on waterfowl in the Doñana National Park is assessed. The concentrations of Cu, Pb, Cd, Zn nd As in the liver and eggs of 16 species of waterfowl found dead in the Park between April and November 1998 were determined. The highest levels were found for Zn, followed by Cu, Pb, Cd and As. The main parameters related to the accumulation of these elements in the waterfowl studied were species and trophic level. The other variables studied--distance from the spill, days of exposure, sex, size, and age--are important, although this depends on the element studied. Zn and Cu from the spill have entered the food chain of the aquatic birds studied, but Cd, Pb and As have not. There is currently no evidence to suggest that the trace element concentrations measured have reached toxic levels.
评估了西班牙塞维利亚阿兹纳科利亚尔矿泄漏事件对多尼亚纳国家公园水禽的影响。测定了1998年4月至11月期间在该公园发现死亡的16种水禽的肝脏和蛋中铜、铅、镉、锌和砷的浓度。锌的含量最高，其次是铜、铅、镉和砷。在所研究的水禽中，与这些元素积累相关的主要参数是物种和营养水平。所研究的其他变量——与泄漏点的距离、暴露天数、性别、体型和年龄——也很重要，不过这取决于所研究的元素。泄漏中的锌和铜已进入所研究水鸟的食物链，但镉、铅和砷没有。目前没有证据表明所测微量元素浓度已达到有毒水平。
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