一、水污染的概念、来源与危害水污染是指水体因某种物质的介入而导致其化学、物理、生物或者放射性等特性的改变,从而影响水的有效利用,危害人体健康或者破坏生态环境,造成水质恶化的现象。水污染物质既有有机物又有无机物;既有需氧物质、病原体污染物、石油污染物,又有植物营养物质污染物和放射性污染物等。水污染有以下几种危害:1、对人体健康有危害。污染水经过以下途径来危害人体。(1)直接饮用;(2)污染水被食 First, the concept of water pollution, sources and hazards Water pollution refers to the water body due to the intervention of a substance led to its chemical, physical, biological or radioactive characteristics of change, thus affecting the effective use of water, endanger human health or damage the ecological environment , Resulting in the deterioration of water quality. Water pollutants both organic and inorganic; both aerobic substances, pathogens, petroleum pollutants, there are plant nutrients pollutants and radioactive contaminants. Water pollution has the following kinds of hazards: 1, harmful to human health. Polluted water through the following ways to endanger the human body. (1) direct drinking; (2) contaminated water is eaten