336Vol.33No.620196JournalofAridLandResourcesandEnvironmentJun.20191003-7578201906-150-08doi10.13448/j.cnki.jalre.2019.181*111231.0100512.2500313.2645002015-2016PM2.5、PM10、SO2、CO2、NOO3IAQIAQIIAQIIAQIPM2.5>100、IAQIPM10>150IAQIO3>100。1O32、、PM2.5、、O3PM103201782.5%、75%81.1%。X51A。、、、。1。、、2。、、、、、3-6。74d、3d5WNW、、。815d。3°-5°990-1100m91011-12。。*2018-5-312018-10-8。2016CMAHX20160305。1981-Emailwutong2829@sina.com1971-、、Emaillxh101900@163.com2015-2016IAQI。11.12015-20178PM2.5、PM10、SO2、CO2、NOO3。8、、、、、、、160km2。00h-23h≤4201532420163512017361。、、、、、、、、、。1.2AQIIAQI。《AQI》HJ633-201213AQI1。800h-23hPM2.5、PM10、SO2、NO2、CO24O38O31Table1DivisionoftheAQIlevels0-5051-100101-150151-200201-300>3001、2IAQIAQI。3-5、6-8、9-1112-2。IAQIP=IAQIHi-IAQILoBPHi-BPLoCP-BPLo+IAQILo1AQI=maxIAQI1IAQI2IAQI3…IAQIn21IAQIPPCPPBPHiCPBPLoCPBPHiBPLo《AQI》HJ633-2012IAQIHiBPHiIAQILoBPLo。2IAQIn。22.1AQIIAQI2015-2016AQI1AQI50-10011、11-1AQI8-10。20151a26.5%12。20161b201623.9%2015。AQI、。IAQI。22015-2016IAQI。PM2.5、PM10O3。2015-·151·61AQIa2015b2016Figure1DailyvariationofAQIa2015b20162IAQIa2015b2016Figure2DailyvariationofIAQIa2015b20162016PM2.5、PM10、O3、CO、NO2、SO213.6%、16.4%、6.2%、0.7%、3.0%0.9%11-2PM2.533.8%、9-10PM1019.0%O317.4%CO、NO2SO2·251·3311-1PM2.5PM10。PM10>PM2.5>O3>NO2>SO2>COPM2.5O3PM10PM2.5PM2.5PM10PM10O3、VOCsO3。2.2IAQIxyRH、xVx、yVy、P、E、SD、T、Tmax、R、Ts、DT11PM2.5、PM10O32。2IAQI**α=0.01Table2CorrelationcoefficientbetweenIAQIofdifferentpollutantandmeteorologicalelements**meansthecorrelationtestofα=0.01ispassedIAQIPM2.5IAQIPM10IAQIO3IAQIPM2.5IAQIPM10IAQIO3RH0.48**-0.18**-0.071410Vx-0.110.21**0.12929Vy-0.44**0.01-0.28**2105P-0.04-0.27**-0.0411111E0.34**-0.130.23**467SD-0.36**-0.010.26**3106T0.29**0.060.55**683Tmax0.3**0.110.56**572R-0.12-0.19**-0.17838Ts0.24**0.050.58**791DT0.060.17**0.35**10541IAQIPM2.5。2015-201611-2216。IAQIPM2.5>y>>>>2。6IAQIPM2.53IAQIPM2.5。、、PM2.5PM2.5。IAQIPM2.5、y、、、。PM2.5、10PM2.537-87%y≤3.3m/s8-74hPa≥-5.3℃≥-10.7℃。>87%IAQIPM2.5-。143cIAQIPM2.515。2IAQIPM10。2015-20163-5、9-10282。IAQIPM10>x>>>。5IAQIPM104IAQIPM10>150。2015-2016IAQIPM10>150PM10IAQIPM10>150、x、、、。PM10·351·6a%bym/schdhPae℃f℃32015-2016IAQIPM2.5Figure3VariationtrendsofmeteorologicalfactorswiththelevelofIAQIPM2.5intheendofautumnandallwinterfrom2015to2016aDailyaveragerelativehumidityunit%bDailyaveragewindspeedonYdirectionunitm/scDailysunshinehoursunithdDailyaveragewaterpressureunithPaeDailymaximumtemperatureunit℃fDailyaveragetemperatureunit℃。4bPM10PM10。、、≤888hPax≥1.3m/s≤3.4mm≤48%8.1-15.4℃。·451·33ahPabxm/scmmd%e℃42015-2016IAQIPM10Figure4VariationtrendsofmeteorologicalfactorswiththelevelofIAQIPM10intheendofautumnandallwinterfrom2015to2016aDailyaveragepressureunithPabDailyaveragewindspeedonXdirectionunitm/scDailyprecipitationunitmmdDailyaveragerelativehumidityunit%eDailytemperaturerangeunit℃3IAQIO3。2015-20166-8177。IAQIO3>>>>y>>。yIAQIO3IAQIO3IAQIO3O3。O3·551·6O3。IAQIO3、、、、y、、O3≥24.9℃≥26.2℃≥20.3℃≥10.3℃y≤4.5m/s≥6h74-195hPa。2.320171-121-2、11-123-5、9-106-82.2PM2.5、PM10、O3。20171-2、11-12PM2.54062PM2.53382.5%。20176-8O33753O330O381.1%。20173-5、9-10PM10321PM1075%2.2IAQIPM2.5、IAQIPM10、IAQIO3。PM10。3。AQI、16。PM2.5、PM10O3O317。O3182015-2016O3、VOCsO3。。PM2.5、y、、、、PM2.5PM2.519。37-87%y≤3.3m/s8-74hPa≥-5.3℃≥-10.7℃PM2.5。PM10≤888hPax≥1.3m/s≤3.4mm≤48%8.1-15.4℃PM10。O3、、、y、、、、O3≥24.9℃≥26.2℃≥20.3℃≥10.3℃y≤4.5m/s≥6h74-195hPaO3。PM2.5O3、PM10。41PM2.5、PM10O3O3。237-87%y≤3.3m/s8-74hPa≥-5.3℃≥-10.7℃PM2.5。·651·333≤888hPax≥1.3m/s≤3.4mm≤48%8.1-15.4℃PM10。4≥24.9℃≥26.2℃≥20.3℃≥10.3℃y≤4.5m/s≥6h74-195hPaO3。1.M.2008.2.J.2014S140-48.3.2014J.201639134-42.4.2005-2009J.201127329-32.5.PM2.5J.201431101193-1196.6MamtiminBMeixnerFX.Thecharacteristicsofairpollutioninthesemi-aridcityofUrumqiNWChinaanditsrelationtoclimatologicalprocessJ.GeophysicalResearchAbstracts2007906537.7.J.2003316345-350.8.J.2012416-10.9.J.2013231-33.10.J.200733S1107-110.11.C.199852-56.12.J.2001322-24.13.HJ633-2012《AQI》J.2012449-49.14.J.20121051-55.15.J.201534112118-2126.16.J.2018326187-193.17.PM2.5J.2018325191-195.18.2015-2016J.20183862179-2190.19.J.201832328-33.ThestudyofcharacteristicsofairpollutionandmeteorologicalfactorsinHo-hhotXULina1LIXinghua1FENGZhen1HUANGQi2HAOLingling31.InnerMongoliaServiceCenterofMeteorologyHohhot0100512.ShandongMeteorologicalBureauJinan250031China3.MeteorologicalBu-reauofRushanshandongWeihai264500ChinaAbstractTheseasonalvariationcharacteristicsofdailyindividualairqualityindexIAQIanddailyairqualityindexAQIwereanalyzedbyusinghourlymassconcentrationdataofPM2.5PM10SO2CO2NOandO3from2015to2016inHohhot.CombiningwithmeteorologicalelementsthemeteorologicalinfluencefactorsthataffectthechangeofIAQIandthepollutionmeteorologicalindexesinthecaseofIAQIPM2.5>100IAQIPM10>150andIAQIO3>100weredetermined.TheresultsshowthatiTheairpollutionhasobviouslyseasonalvariationregularity.Theextremepollutioneventsofparticulatemainlyoccurredinheatingperiodandthehigh-incidenceseasonofthesandanddustweathertheO3'sslightlypollutioneventswereeasytooccurintheseasonofstrongestultravioletradiation.iiUndertheconditionofbreezeincreasingtemperatureandhighhumidityweatherinlateautumnandwinteritwaseasytoproducePM2.5pol