• 主题
高级搜索  >
历史搜索 清空历史
首页> 美国卫生研究院文献>Springer Open Choice >The chemistry and toxicity of discharge waters from copper mine tailing impoundment in the valley of the Apuseni Mountains in Romania
【2h】

The chemistry and toxicity of discharge waters from copper mine tailing impoundment in the valley of the Apuseni Mountains in Romania

机译：罗马尼亚阿普塞尼山脉山谷铜矿尾矿库排出水的化学和毒性

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Copper mining generates large quantities of waste, tailings, and acid outflows causing long-term environmental impacts and potential threats to human health. Valea Şesei is the largest tailing impoundment in Romania, created by flooding the valley (known as Valea Şesei) of the Metalliferous Mountains (a division of the Apuseni Mountains) with copper mining waste. The present study (i) estimated the total volume of tailings in this area; (ii) screened the concentration of 65 elements (rare earth and platinum group elements, alkali metals and alkali earth metals, transition and post-transition metals and metalloids) and cyanide concentrations in wastewater samples collected from tailing impoundment; (iii) evaluated the toxicity of these water samples using five in vitro bioassays employing human cells isolated from healthy donors and a short-term (1 h) exposure model. The sampled waters were highly acidic (pH 2.1–4.9) and had high electrical conductivity (280–1561 mS cm−1). No cyanides were detected in any sample. Water samples collected from the stream (AMD) inflowing to the tailing impoundment were characterized by the greatest concentrations of alkali metals, alkaline earth metals, transition and post-transition metals, metalloids, rare earth elements, and noble metal group. At other sites, the elemental concentrations were lower but remained high enough to pose a relevant risk. The greatest magnitude of in vitro toxic effects was induced by AMD. Observed alterations included redox imbalance in human neutrophils followed by lipid peroxidation and decreased cell survival, significant aggregation of red blood cells, and increased prothrombin time. The study highlights that Valea Şesei is a large sink for toxic elements, posing environmental and health risks, and requiring action to prevent further release of chemicals and to initiate restoration of the area.Electronic supplementary materialThe online version of this article (doi:10.1007/s11356-017-9782-y) contains supplementary material, which is available to authorized users.
机译：铜矿开采会产生大量废物，尾矿和酸液，造成长期的环境影响，并对人类健康构成潜在威胁。 Valea eaesei是罗马尼亚最大的尾矿库，是通过用铜矿开采的废料淹没Metalliferous山（Apuseni山的一个分区）的山谷（称为ValeaŞesei）而建立的。本研究（i）估算了该地区尾矿的总量； （ii）筛选了从尾矿库中收集的废水样品中的65种元素（稀土和铂族元素，碱金属和碱土金属，过渡和过渡后金属和准金属）的浓度和氰化物的浓度； （iii）使用五种体外生物测定法评估了这些水样的毒性，这些生物测定法采用了从健康供体中分离出的人类细胞和短期（1h）暴露模型。采样的水是高酸性的（pH 2.1–4.9），并且具有高的电导率（280–1561 mS·cm -1 ）。在任何样品中均未检测到氰化物。从流入尾矿库的水流（AMD）收集的水样的特征在于最大浓度的碱金属，碱土金属，过渡金属和过渡金属，准金属，稀土元素和贵金属族。在其他地点，元素浓度较低，但仍高到足以引起相关风险。 AMD诱导了最大程度的体外毒性作用。观察到的变化包括人类嗜中性粒细胞的氧化还原失衡，随后是脂质过氧化和细胞存活率降低，红细胞显着聚集以及凝血酶原时间延长。研究强调，ValeaŞesei是大量有毒元素的汇，构成环境和健康风险，需要采取行动防止化学品进一步释放并启动该地区的恢复。电子补充材料本文的在线版本（doi：10.1007 / s11356-017-9782-y）包含补充材料，授权用户可以使用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号