大气环境污染之化学元素 环境工程专业

名称：大气环境污染之化学元素 【内容摘要】：由于人们对工业高度发达的负面影响预料不够,预防不利，导致了全球性的三大危机:资源短缺、环境污染、生态破坏.人类不断的向环境排放污染物质。但由于大气、水、土壤等的扩散、稀释、氧化还原、生物降解等的作用。污染物质的浓度和毒性会自然降低，这种现象叫做环境自净。如果排放的物质超过了环境的自净能力，环境质量就会发生不良变化，危害人类健康和生存，这就发生了环境污染。【关键词】：环境污染、酸雨、温室效应、臭氧层空洞、光化学污染【ABSTRACT】due to the people to the negative effects of highly developed industry, prevent adverse, not expected the three crisis led to a global shortage of resources, environment pollution and ecological destruction to environment. Human constant emission pollution substances. But because the atmosphere, water, soil, and the diffusion, dilute oxidation and reduction, 第 1 页 共 22 页biological degradation function. Pollutant concentration and toxicity will naturally decreases, the phenomenon is called environment since net. If emissions than the environment of material, the environmental quality self-purification would happen, adverse change is harmful to human health and survival, that's what happened the pollution of environment. 【key words】:environmental pollution, acid rain, greenhouse effect, ozone hole, photochemical pollution .目录第 2 页 共 22 页引言..............................................4一、大气环境污染概念..............................5二、大气环境污染的原因：......................... 51、生活污染源：............................. 52、工业污染源：.............................. 53、交通污染源................................ 5三、酸雨......................................... 5四、温室效应..................................... 6五、臭氧层空洞的形成及其控制对策..................7六、光化学烟雾及其控制对策....................... 8（一）、光化学烟雾深化认知........................