题目名称：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, 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 1 页 共 12 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...
