大气污染与防治.pdf

第三讲第三讲

大气污染及其防治大气污染及其防治
AirAir pollutionpollution andand
EnvironmentalEnvironmental protectionprotection
南开大学环境科学与工程学院南开大学环境科学与工程学院 鞠美庭鞠美庭
AirAir isis essentialessential toto allall organismsorganisms onon .
ForFor humanhuman beings,beings, airair forfor breathingbreathing isis mormoree
importantimportant thanthan ourour dailydaily . TheThe airair wewe
inhaleinhale isis mademade upup ofof 21%21% oxygenoxygen andand %%
carboncarbon . WeWe exhaleexhale 17%17% oxygenoxygen andand 4%4%
carboncarbon . OxygenOxygen isis neededneeded forfor thethe
metabolicmetabolic processesprocesses whichwhich occuroccur withinwithin thethe
. AnAn adultadult inhalesinhales approximatelyapproximately 1400014000
litersliters ofof airair daily,daily, whichwhich isis equivalentequivalent toto thethe
volumevolume ofof aboutabout 5050 .
Visibility impaired by air pollution.
A clear view and clouded view: what air pollution does to visibility.
Smoky vehicles are a problem.
Smoky vehicles will have to
undergo tests on a tamper-
proof treadmill from mid-
1999. (HK)
讲授内容讲授内容
ContentContent ofof DiscussionDiscussion
第一部分：概述第一部分：概述






第二部分：大气污染物各论第二部分：大气污染物各论

. 碳氢化合物碳氢化合物

概述概述----大气的组成及结构大气的组成及结构
干洁空气的组成干洁空气的组成::
氮（氮（NN2））%%

氧（氧（OO2））%%
氩（氩（ArAr））占占 %%
%%。。
概述概述----大气的组成及结构大气的组成及结构
大气圈的结构大气圈的结构
由于地