元素的环境化学与地球的温室效应

ENVIRONMENTAL CHEMISTRY OF ELEMENTS AND GREENHOUSE EFFECT OF THE EARTH

摘要:

本文讨论了一些重要元素的环境化学特征和一些重要金属和痕量元素对人类健康的影响。在地球温室效应一节中重点叙述了本世纪初以来CO_2浓度剧烈的增加,使地球的气候变暖,海洋表面的温度也上升了0.6±0.3℃。因此,必须严格限制CO_2排放。还讨论了对流层中的臭氧是一种对植物有害和对人体不利的污染物,然而平流层中的臭氧却是地球表面免受紫外线辐射的重要屏障。因此,应防止CFCl_3和CF_2Cl_2的一组化学剂,以便保护臭氧。

Abstract:

The paper addresses the environmental chemical characteristics of some major metals and the effects that some major metals and trace elements have on human health. In the section Greenhouse Effect of the Earth, it is emphasized that the concentration of carbon dioxide has been dramatically increasing since the turn of the century, which in turn has raised the earth s temperature and that of the ocean surface by 0.6±0.3 degrees Celsius. Therefore, discharge of carbon dioxide into the atmosphere should be res...