1492Ch11
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2020-01-11 19:44:52
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Manahan,StanleyE.GASEOUSINORGANICAIRPOLLUTANTSEnvironmentalChemistryBocaRaton:CRCPressLLC,200011GASEOUSINORGANICAIRPOLLUTANTS____________________________________________________11.1INORGANICPOLLUTANTGASESAnumberofgaseousinorganicpollutantsentertheatmosphereastheresultofhumanactivities.ThoseaddedinthegreatestquantitiesareCO,SO2,NO,andNO2.(ThesequantitiesarerelativelysmallcomparedtotheamountofCO2intheatmosphere.ThepossibleenvironmentaleffectsofincreasedatmosphericCO2levelsarediscussedinChapter14.)OtherinorganicpollutantgasesincludeNH3,N2O,N2O5,H2S,Cl2,HCl,andHF.Substantialquantitiesofsomeofthesegasesareaddedtotheatmosphereeachyearbyhumanactivities.Globally,atmosphericemissionsofcarbonmonoxide,sulfuroxides,andnitrogenoxidesareoftheorderofonetoseveralhundredmilliontonsperyear.11.2.PRODUCTIONANDCONTROLOFCARBONMONOXIDECarbonmonoxide,CO,causesproblemsincasesoflocallyhighconcentrationsbecauseofitstoxicity(seeChapter23).Theoverallatmosphericconcentrationofcarbonmonoxideisabout0.1ppmcorrespond
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