Metal and metalloid contamination in roadside soil and wild rats around a Pb-Zn mine in Kabwe, Zambia
Metal and metalloid contamination in roadside soil and wild rats around a Pb-Zn mine in Kabwe, Zambia
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DOI：
10.1016/j.envpol.2010.09.007
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发表时间：
2011-01-01
影响因子：
8.9
通讯作者：
Ishizuka, Mayumi
中科院分区：
文献类型：
--
作者：
Nakayama, Shouta M. M.;Ikenaka, Yoshinori;Ishizuka, Mayumi
研究了重金属(铬、钴、铜、锌、镉、铅、镍)和类金属(As)在路边土壤和野鼠体内的积累。样本来自一个铅锌矿附近(赞比亚卡布韦)和赞比亚首都(卢萨卡)。用原子吸收光谱法测定土壤样品中7种金属元素和As的含量以及大鼠组织样品中的铅含量。卡布韦土壤中铅、锌、铜、镉、砷的含量远高于基准值。地理信息系统分析表明，金属污染的来源是采矿和冶炼活动。有趣的是，尽管当时的风是向西吹的，但矿井以南的地区污染更严重。卡布韦野鼠的组织铅浓度比卢萨卡野鼠高得多。它们的体重和肾脏铅水平呈负相关，这表明采矿活动可能会影响卡布韦的陆地动物。(C)2010年由爱思唯尔有限公司出版。
Metal (Cr, Co, Cu, Zn, Cd, Pb, Ni) and metalloid (As) accumulation was studied in roadside soil and wild rat (Rattus sp.) samples from near a Pb Zn mine (Kabwe, Zambia) and the capital city of Zambia (Lusaka). The concentrations of the seven metals and As in the soil samples and Pb in the rat tissue samples were quantified using atomic absorption spectroscopy. The concentrations of Pb, Zn, Cu, Cd, and As in Kabwe soil were much higher than benchmark values. Geographic Information System analysis indicated the source of metal pollution was mining and smelting activity. Interestingly, the area south of the mine was more highly contaminated even though the prevailing wind flow was westward. Wild rats from Kabwe had much higher tissue concentrations of Pb than those from Lusaka. Their body weight and renal Pb levels were negatively correlated, which suggests that mining activity might affect terrestrial animals in Kabwe. (C) 2010 Published by Elsevier Ltd.