Environmental Impacts of Naturally-occurring Heavy Metals and Countermeasures
Environmental Impacts of Naturally-occurring Heavy Metals and Countermeasures
复制标题
天然重金属对环境的影响及对策
DOI：
10.5026/jgeography.116.6_892
复制
发表时间：
2007
影响因子：
3.1
通讯作者：
Y. Morimoto
中科院分区：
文献类型：
--
作者：
K. Okumura;K. Sakurai;Naoki Nakamura;Y. Morimoto
日本有许多火山和温泉，因此，许多地质层本身含有大量的重金属，这些重金属来自热液交替过程。地质层中所含重金属的毒性长期以来被认为是矿区金属或非金属资源开发带来的健康和/或环境风险。近年来，在道路、隧道等土木工程施工中，自然产生的重金属对环境的影响也被认为具有类似的危险性，2003年实施的《土壤污染对策法》规定了负责防止土壤污染的责任法人，并对调查调查和对策技术等技术问题进行了规定。该法主要涉及土壤污染案件，特别是在城市地区，以保护人类健康。因此，它还没有能够完全处理的有毒重金属污染的环境影响，由于建设工程不仅在城市地区，而且在郊区。本文的目的是审查和讨论的化学特性和环境影响的自然发生的重金属。此外，还介绍了一些必要的评估方法和对策技术的案例研究。
There are many volcanoes and hot springs in Japan; therefore, many geological layers inherently contain substantial amounts of heavy metals originating from hydrothermal alternation processes. The toxicities of heavy metals contained in geological layers have long been recognized as health and/or environmental risks from the development of metal or non-metal resources in mining areas. Recently, the environmental impacts of naturally-originating heavy metals during construction work for civil engineering purposes, such as roads and tunnels, have been recognized to raise similar risks.The Soil Contamination Countermeasures Law enforced in 2003 defines responsible corporations in charge of preventing environmental contamination of the ground, and stipulates technical aspects regarding investigation surveys and countermeasure techniques. This law mainly covers soil contamination cases, especially in urban areas, to preserve human health. Therefore, it has not been able to deal fully with the environmental impacts of contamination by toxic heavy metals due to construction work not only in urban areas but also in suburban areas.The intent of this paper is to review and discuss chemical characteristics and environmental impacts of naturally-occurring heavy metals. Furthermore, some case studies on necessary assessment methodologies and countermeasures techniques are introduced.