水体中的主要污染物及其危害

The Main Pollutants in Water and Its Hazards

介绍了水体污染的概念,水体污染是指排入水体的污染物在数量上超过了该物质在水体中的本底含量和水体的环境容量,从而导致水体的物理特征、化学特征和生物特征发生不良变化,破坏了水体固有的生态系统,破坏了水体的功能及其在经济发展和人民生活中的作用。并列举了能够造成水体污染的12类主要物质,并对其所造成的危害加以分析。

The paper mainly introduced the concept of the water pollution.Water pollution means the amount of the discharged pollutants exceed the background concentration and environmental capacity of the water body,which result in the harmful patterns of the physical characters,chemical characters and biological characters.Accordingly,the natural ecosystems of the water body will be destroyed,and the water function as well as its roll in the economic development and people living will be affected.Also,the major 12 s...