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地球是一个极其复杂的物理、化学和生物的综合体。随着人类的进步,人们不仅承认地球为维持人类生命提供了一切物质的源泉,而且认识到地球与人的健康之间有着直接的关系。地壳中的化学元素通过自然风化和人为因素进入环境,参与整个自然界的生态循环,通过食物链的传递进入人体。由于不同地区各种化学元素丰度的差异,人体中某些元素就有可能过剩或亏损,从
The Earth is an extremely complex physical, chemical and biological complex. With the progress of mankind, people have not only acknowledged that the earth has provided all the material sources for maintaining human life, but also realized that there is a direct relationship between the earth and human health. The chemical elements in the crust enter the environment through natural weathering and human factors, participate in the ecological cycle of the entire nature, and enter the human body through the food chain. Due to differences in the abundance of various chemical elements in different regions, some elements of the human body may have excess or loss, from