19523(,()100021)1050:NO:CO:NH:HCHOHFCHCHCH:CH(CH:):CHcl3(50~140tnl/min,),1%,,25%,109,,(passivePersonalsapler),,,,,,,,,,,,,,,,,11170,,,T1050:NOzCONH3HCHOHFCHCHCH:C6H(CH:):CHCls,,,25%,,1()ll11,2.,3,4(70)5.,6.,7,8.,47mm,smm,10919(5.62mm,l.s4mm)43mm(1m,11m,15.7%)(),(0.3mm,85.5%),(36.85mm,3.53mm)(42mm),(20~40),,,,,,,,,,,Ficks,=()(cc)x1-3;W,g,,cmZ/min,A,cm,L,cm;C-,mg/m,C,,mg/m,t,,min,,C*(1):=(DA),xl-3(2)A~~,_,~~,,=-,j!1994231,(ml/min),r),,FL~~~~,~,~~~,~,~,(),,,K,(2):JOdZ3n,XKC=K,t,(3),(2)2_____._._____._,,,,._,_._._R:R:R3R4(2)I;DC;L/A/,,/4,t,Hu~,.~~,;Ficks1nL,L,,._,...L,/,,,.L3,*J.LR=()=(9)+,()+()+A/AlzA:~~A3-A()(4),L,tl=Al01841()=0.0390em151.25%11X10)x57%=0.00O7em1,3x0.92%TRRs_L3_A,6852030=0.O033Cm1(85.5%\21433%R;_L4A4=-=0.033cm13685Xl,\2143.50%R=OA_L0390+0.0007+0.0033+0.0331=o.076leml=13.1m00761RRl+RZ+R3+R4-l~V(2R:R:R3R4vDco.o761cm,,R~51%,R:~1%,R3~4%R~44%,19,(),,(A/L),13,Icm(cmZ/s)K(ml/min60,1,l,50~1()K(ml/min)(cm,/s)(1)(2)(2)(%)NH,HFHCHONO:50:CHCH.CH:CH(CH:):CHCI:02540250016001540123009300850.06700892001971261219773675370136110105(3)(1)74716054954::83(66)61828192,031-.0n0on0J.11,...On,Roq,.13.6916611975:(1)n200ml/min,75%19,(1),,,,,232.121cm,12ocm4,,,,5~1OL/min,2%2.2502NOZNH:HF;;COCO:(2)146,,,2%2.3,(111AADCO),,,199423i__-----------------------------lll!!!!!!!!!!!!!!!!!!!!!!!!!!!!!III)___31.2.3.()4.5.67.8.9.10.11.(TEI6)12.(aadc37)13..15.16.,,2.4(),,,1~2,,,,2%2.5,,,,,(),20cm/s,(s000m/s)33.1,,0.555,S(),6~10,,6~10,,,,90%,7%(50:NO:HCHo),3.2KDoAAL,D,,K(L),,(.55152555),6~10,(8,12,24h),(3)K:;K,10%(3)3.3t//,25R=80%,20cm/s,30min~24/48h6~10,4,44,(25%),(),,(),,1994231.7NHsHFHCHONO:50:CHeCH.CH:CH(CHaCHCI:CO:2C/mg.m30,05~170002~010002~084007~065007~090030~750030~360020~120110~3600.07~0.60(1)AHMTSaltzmanPRA:(l)(%)3NH,KC(ml/min)(%)C(ml/min)(%)C=o045~1.66mg/m3t=40~1440mint10~35Cy20~25oem/sRH=10%~80%C=0.019~o.oo6mg/m.t=60~1440mint=10~35oCF=10~150cm/sRH=10%80%108136CO:C007~06%t=60~12Omint=10~35C14~177em/sRH=15%~85%60HF65110CHC=028~7smg/m3t=120~1442IDint=10~35oCV=20~150em/sRH=10%80%12560HCHOC=0.02o.sdmg/m.t=30ew1350mint=10~35OC=20300em/sRH=10%90%C=0.073~o.651mg/mt=824ro1445mint=10ro35C=20~250em/sRH=10%~80%,54_51)105_(83)9_(9)(CH)C=0.343.6mg/m3CH=120~1442mint=10ro350C=20~150em/sRH=10%80%12554NO957410(CH)C=0.171.2mg/m3.CH.):t=1201442mint=10ee35oC=20150em/sRH10%80%1254950:C=0.070.gomg/m.t=82~1522mint=10~35=20280em/sRH=10%~70%7471CHCIC=1.136mg/m3=120~1442mint10ee35OCV=20~150em/sRH=10%80%11354.(l)n,(mg/m)h()(),,,,2/3,1/3,,003O4CO~-024C810243724:3.4,,,(l),(2),,(3),202555,RH80%,(24h,12h),10,10,80%,,1095%10%,3.5,,,:10155580%,;(5)2,(25)12(),95%10%,,,,;(1),,,3.6,1555,,,,,95%10%,,,,19942313..1:10cm/s,,(5cm/s),,,,,,,,10~15Ocm/s,50~150cm/s,10~150cm/s;,(500m/s),1555,95%25,3..2:1.5,,,(g/Lmg/m),,,CT/Tt=,.....,.,t,Hy1HC:CH()(),,,12540,610,1525,1/2,,,,,,,3..3:,,,,,,(50:NH3),,,,,,,,,RH10%80%,3.8,,,,,;,,(l),(95%10%),,,,,,3.9,,,,(),,2t,,25%():,,(20cm/s),,:,3.9.1::0.5~55,,10%,,95%25%3,6(Relativeoveralluneertainty):ROU=}}+Zx}MCF}x100%(6):!bl,1C}b1+bZn:+bininni1:i;bibl=01:i,.i,M:)(C1)2+(nZx)(CU:)++(ni)_(CV,)n(n1)=11925i:ii,Ci-i,n*C::392i,n,/()S=)i,t:,t()(9)(d;)((10)(Sd);(11)t.,n=*;=1;J)2=z(10)=~ntt.5,,tt.,:1,(1)(95%),4,4ml/min)(d)(2)(2h,mg/m.)(d)(%)nUnnonoj.NH:HFHCHOAHMT1719(40)(1(23)181612122616++++++OnJDNO:50:CO:SaltzmanPRA136110105(3)747160CHCHCH:CH(CH:):CHCls605449541414141400052000066000187(0012)(7)001330001270.03%60(l~Zh)000814000914000914001014:(l)H(2)1012.,,,4CassinelliME,HullRDProtocolfortheevaluationofPassivemonitors,cincinnati,ohio,45226:NationalInstituteforoccPationalSafetyandHealth,1986RoseVE,PerkinsJL.Passivedosimetrystateoftheartreviow.AmIndHygAssocJ,198243605~621NamiesnikJ,GoreekiT,KozilowskiE.PassivedosimetersanaPProaehtoatmosPh-eriePollutantsanalysis,SciTotalEnviron,1984,58:225~258.:,1991MDHS.HealthandSafetyexeeutivemethodsforthedeterminationofhazardoussubstances,ProtocalforassessingthePerformanceofadiffusivesamPler.London:MDHS27,HSE,1987DuPont.LaboratoryvalidationProtoeol,duPontPROTEKTMcolorimetrieairmonit-0ringbadgesystems,DiffusiontyPeairmonitoringbadgeswithliquidsorbeors.Wil-mington,Delaware19898:E1duPontderemoursandCo,198145PrineipleofstrueturaldesinandevaluationofperformaneeeharaeteristiesofpasssivepersonalsamPlersbymoleeulardiffusionCuiJiusi(InstituteofEnvironmentalHealthMonitoring,ChineseAeademyofPreventiveMedicine,Beijing100021,China)ThePaPerPresentsaPrineiPleofstrueturaldesign,laboratorytestaPParatusandevaluationofPerformaneeeharaeteristiesofPassivePersonalsamPlersbymoleeulardiffusion.SamPlingratesof10kindsofgaseousorvaPourPollutants502,NOZ,NH3,HF,CO:,HCHO,CeHe,CeHSCH:,CoH(CH3):,CHC13inambientairhavebeenrespeetivelydeterminated.Therangeofsamplingrateofsingleside155014oml/min,parallelsidesampling15double,Relativestandarddeviation15lessthan10%.Faetorsofeffectonsamplingrateshavebeendiseussed.Comparedwithaetivedevieesinfieldandlaboratoryexperiments,therelativeoveralluneertiantyofpassivepersonalsamplers15lessthan25%.Aspassivepersona]samplersaresmall,weightlight(109),inexpensive,simPletooPerate,theirPro-pertiesare