成都市冬季辐射雾生消过程的无机阴离子变化

29120101ENVIRONMENTALCHEMISTRYVo.l29,No.1January2010200959.*(KYTZ200806).**,Emai:lbelling15@126com*袁伟印红玲**杨迎春叶芝祥邱长燕唐文龙信欣(,,610225),pH458639,557.(SO42-,NO-3,Cl-).,SO42-(311mgl-1),NO-3(020mgl-1)Cl-(025mgl-1);..,,,.,,,..,[14],,.,[58].()()2008(SO42-,NO-3,Cl-),.111()().,15m.:CH926B(),,,.200812202009120.,:(21!4011!40)(11!451!45)(1!503!55)(4!006!00)(6!058!05)(8!1010!10).,,.21!309!3012h.,.()10%(V/V),,,,[9].3,pH,045m-5∀..12(GB13580592)1gl-1,761()(Cl-,NO-3SO42-)602686min9901004min15511566min.0300mgl-1,Cl-(r=09991)NO-3(r=09999)6429SO42-(r=09998)...(SO42-,NO-3Cl-)010mgl-1,008mgl-1,002mgl-1;835%1152%,93%1125%,928%1086%;47%78%.221pH1.pH484639,2861078Scm-1.pH#56010,6667%.pH557,(pH=560),,,.1(mgl-1)Table1TheconcentrationofanionsinChengdufogwaterSO42-NO-3Cl-pHEC/Scm-11200812203310086021555587220081223450047029484621320081224277038022572390420081229434017019553590520081230308008801955641862009011020100780176394297200901113080210435914868200901126930300415341078920090113371015030551657102009011424902302657045911200901151420150245912861220090116252014013530470132009011716601502655831614200901181800130255373591520090119314019022532484311020025557509,pH.6,,pH639,;8,,,,1078Scm-1.1SO42-,311mgl-1,NO-3Cl-,15601240.NO-3Cl-,020025mgl-1.,.1.(2),,SO42-,NO-3Cl-.,,.,,.SO42-,1/46,1/22,1/42.1:652(mgl-1)Table2ComparisonoftheconcentrationsofanionsindifferentregionsSO42-NO-3Cl-SO42-NO-3Cl-2009311020025[12]200368907561020[10,11]198419901445122204620[13]20061306031802950221SO42-.,,,,SO42-;,,SO42-,.,,,,.23,.,,,.2SO2-4,NO-3Cl-.3,.,,..1SO42-Fig1ConcentrationofSO42-ingenesisanddissipationoffog2Fig2Variationofanionconcentrationsinfogwaterandrain3(mgl-1)Table3ComparisonoftheanionconcentrationsbetweenfogwaterandrainSO2-4NO-3Cl-pHEC/Scm-1120081229434017019553590220081230308008801955641832008123119903830926005244200901015112060383958885200901095050260305606656200901102010078017639429243(SO2-4,NO-3Cl-).1662910,(555,162,099mgl-1),,,,,,.(162,015,024mgl-1)(159,012,022mgl-1),..,,(205,0094,016mgl-1),SO42-Cl-,NO-3(074mgl-1),(0095mgl-1)..,,,,,.3Fig3ConcentrationsofanionsingenesisanddissipationoffogattwositesinChengduonJan103(1)SO42-,[SO42-][Cl-][NO-3].(2),(SO42-,NO-3,Cl-),,..(3),,..[1]ManabuI,YasushiT,FogwaterChemistryataMountainsideForestandtheEstimationoftheAirPollutantDepositionviaFogDropletsBasedontheAtmosphericQualityattheMountainBase[J].EnvironmentalScience&Technology,1998,32!15661572[2]CollettJ,HoagK,ShermanDeta.l,SpatialandTemporalVariationsinSanJoaquinValleyfogChemistry[J].AtmosphericEnvironment,1999,33!129140[3]PierreH,TaehyoungL,LaurieTetal,OrganicMatterinCentralCaliforniaRadiationFogs[J].EnvironmentalScience&Technology,2002,36!47774782[4]HerckesP,ChangH,LeeTeta.l,AirPollutionProcessingbyRadiationFogs[J].WaterAirAndSoilPollution,2007,181!6575[5]PierreH,JerryA,JeffreyLeta.l,ComprehensiveCharacterizationofAtmosphericOrganicMatterinFresno,CaliforniaFogWater[J].EnvironmentalScience&Technology,2007,41!393399[6]RajaS,RaghunathanR,YuXYeta.l,FogChemistryintheTexasLouisianaGulfCoastCorridor[J].AtmosphericEnvironment,2008,42!20482061[7],,,Hg[J],2008,27(1)!1051091:67[8]KarthikeyanS,BalasubramanianRetal,SimultaneousDeterminationofInorganicAnionsandSelectedOrganicAcidsinAirborneParticulateMatterbyIonChromatography[J].EnvironmentalAnalysis,2007,40!793804[9]HJ/T1652004,[S][10],,[J],1994,52(4)!477483[11],,,[J].,1996,19(1)!6368[12],,[J].,2005,18(6)!79[13],,,2006[J].,2008,28(5)!395400STUDYOFANIONSINWINTERRADIATIONFOGSINCHENGDUAREAYUANWeiYINHonglingYANGYingchunYEZhixiangQIUChangyanTANGWenlongXINxin(ChengduUiversityofInformationTechnology,Chengdu,610225,China)ABSTRACTTwosamplingsiteswerechosentostudyconcentrationsandvariationsofanionsduringwinterradiationfogsinChengducityanditssuburbareaAnionsweremeasuredbyionchromatogramResultsshowedthatpHvaluesofthefogwaterwerebetween458and639,exhibitingacidityandtheaverageconcentrationofSO42-was311mgl-1,muchhigherthanthatofNO-3andCl-(020and025mgl-1)VariationoftheconcentrationofanionsingenesisanddissipationoffogbetweenurbanandsuburbanareashowedobviousdifferenceConcentrationsofanionsinfogwaterweresubstantiallylowerthanintherain.Keywords:radiationfog,ionchromatogram,fogwater,anion.