汽车排放与发动机污染探讨

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1、......汽车排放与发动机污染探讨目  录引言·····························································13第一章汽车的发展与对环境的影响···························141.1汽车的发展···············································141.2汽车对人类的影响·········································14第二章汽车的主要污染方式与污染物··························152﹒1尾

2、汽污染·················································152﹒2噪音污染·················································152﹒3车内污染·················································162.1.1汽车尾气对大气的污染····································162﹒2.1汽车产生噪音对环境的影响·······························172﹒3.1汽车室内的污染学习好帮手

3、......········································18第三章：减少汽车污染的方法探讨····································19　3.1前处理净化·················································193.2.机内净化··················································193.3.后处理净化················································213.4清洁汽油···

4、················································223.5开发混淆动力汽车·········································22参考文献························································24谢辞·····························································25学习好帮手......引言汽车工业的快速成长,汽车的保有量在一年一年地增加,它在给许多人的工作带来利便的同时,但排放的

5、污染物也越来越多,给许多人的生产、工作和环境造成为了一天比一天严重的危害.随着石油资源的逐步减少和以汽油、柴油为主的汽车逐步的在增加，汽车对我们生活环境所造成的污染已日益明显,除了对以汽油、柴油为主的汽车技术上的改造和采取比较严格的制约标准之外,另外研发清洁能源去替代汽油、柴油,从而减轻汽车排放的污染物对环境所造成的不良影响,是今后汽车成长必须认真探讨和研究的重要课题。学习好帮手......第一章：汽车的发展与对环境的影响1.1汽车的发展汽车发展至今已逾越百年多，其对人类的影响达到了惊人的程度，而今越来越多的家庭和个人拥有了汽车。汽车已从当时的奢侈品逐渐变为一种生活工具，人

6、们的生活已经与汽车紧密的联系到一起。一辆车对一个家庭来说，带来的不仅仅是便利，而是一种变化，一种生活方式的变化抑或可以称之为升华，汽车可以使人类的生活半径成倍的扩大，拉近了城市中的人们与自然的距离，同时也拉近了城乡两地的距离，而更重要的是汽车对一个国家的经济起了决定性作用，物流业的蓬勃发展，汽车可以说是功不可没，而当我们使用汽车，当我们感受汽车带给我们便利，当我们逾悦其中时，确忽视了一些重要的东西，当人们进入21世纪，汽车污染日益成为全球性问题。随着汽车数量越来越多、使用范围越来越广，它对世界环境的负面效应也越来越大，尤其是危害城市环境，引发呼吸系统疾病，造成地表空气臭氧含

7、量过高，加重城市热岛效应，使城市环境转向恶化。有关专家统计，到21世纪初，汽车排放的尾气占了大气污染的30～60%。随着机动车的增加，尾气污染有愈演愈烈之势，由局部性转变成连续性和累积性，而各国城市市民则成为汽车尾气污染的直接受害者。1.2汽车对人类的影响法国环境健康安全理事会日前发表报告指出，法国每年有９０００多人被汽车尾气等造成的污染夺取生命，其中汽车尾气是各种污染源中的“第一杀手”。在法国，有关专家经过８个月的调查发现，在法国３０岁以上的人群中，有６％到１１％的肺癌死亡病例是由排放到大气中的污染颗粒造成的；另