CAJ | 학술논문

分析了西安世园会召开期间春、夏季大气环境质量监测数据,发现PM10、NO2、SO2之间相关性较高,在短时间尺度上变化趋势一致,指示出较为单一的污染来源。利用同期获取的气象资料与PM10指数简单相关分析结果表明,春季风速愈大,大气PM10浓度愈高,而夏季风速较大有利于大气污染物扩散。气压、能见度、相对湿度在春季与PM10指数表现出较为显著的负相关性,与气温为明显的正相关关系。夏季只有风速和气温与PM10指数相关关系较为显著且变化趋势相反。最后综合春夏季6个气象因子与大气环境PM10指数偏相关分析的结果表明：相对湿度为首要控制因子;能见度呈较显著负相关性;由于春季大气环境监测资料较短,与风速总体呈弱负相关关系;研究时段内降水频次有限,对PM10浓度的抑制作用在统计意义上体现不明显;PM10与气温和气压的关系不显著。
분석료서안세완회소개기간춘、하계대기배경질량감측수거,발현PM10、NO2、SO2지간상관성교고,재단시간척도상변화추세일치,지시출교위단일적오염래원。이용동기획취적기상자료여PM10지수간단상관분석결과표명,춘계풍속유대,대기PM10농도유고,이하계풍속교대유리우대기오염물확산。기압、능견도、상대습도재춘계여PM10지수표현출교위현저적부상관성,여기온위명현적정상관관계。하계지유풍속화기온여PM10지수상관관계교위현저차변화추세상반。최후종합춘하계6개기상인자여대기배경PM10지수편상관분석적결과표명：상대습도위수요공제인자;능견도정교현저부상관성;유우춘계대기배경감측자료교단,여풍속총체정약부상관관계;연구시단내강수빈차유한,대PM10농도적억제작용재통계의의상체현불명현;PM10여기온화기압적관계불현저。
The atmospheric environmental data monitored in spring and summer during the period of 2011 International Horticultural Exposition in Xi＇an were analyzed and results showed that PM10,NO2 and SO2 indices had uniform trends on short time scale with relatively high correlations among them,which indicated that they were from the same pollution sources.By analysis of the correlations between PM10 index and contemporary meteorological data,we found when wind speed was higher in spring,the concentration of PM10 was higher too;but in summer higher wind speed would lead to diffusion of atmospheric pollutants.In spring,there were significantly negative correlations between atmospheric pressure,visibility and relative humidity and PM10 index,but positive correlation for temperature.But in summer,only wind speed and temperature presented significant correlation but opposite trends with PM10 index.Detailed partial correlations between six meteorological factors in spring and summer and PM10 index indicated that relative humidity was the primary controlling factor and visibility presented significantly negative correlation,and wind speed showed generally weak correlation in spring probably due to short monitoring interval.It was not obvious in statistics that the inhibition of PM10 concentration because of limited precipitation frequencies during this period.And there were no significant correlations between PM10 index and temperature as well as pressure.