CAJ | 학술논문

利用气象和环境监测资料分析了2013年2月19日南京一次短时强降雪过程对各类污染源及污染物浓度的影响，并利用 Pearson 相关系数法分析不同污染物之间及污染物浓度与气象要素之间的相关关系。结果表明：此次南京暴雪过程对面源影响最大，扬尘排放量几乎为零，流动源主要受机动车早晚高峰变化影响，对工业点源影响较小。此次暴雪过程后，南京空气质量达到优级，2013年2月19日 AQI 比18日与20日均下降35％，SO2日变化仍呈单峰型，颗粒物及 NO2日变化则未呈现早晚双峰变化。PM2.5浓度与 PM10、SO2、NO2、CO 浓度呈显著正相关，相关系数分别为0.979、0.663、0.837和0.875，说明污染物来源具有一定的同源性。污染物浓度与风速和相对湿度呈显著负相关，与温度和大气压强呈显著正相关。
이용기상화배경감측자료분석료2013년2월19일남경일차단시강강설과정대각류오염원급오염물농도적영향，병이용 Pearson 상관계수법분석불동오염물지간급오염물농도여기상요소지간적상관관계。결과표명：차차남경폭설과정대면원영향최대，양진배방량궤호위령，류동원주요수궤동차조만고봉변화영향，대공업점원영향교소。차차폭설과정후，남경공기질량체도우급，2013년2월19일 AQI 비18일여20일균하강35％，SO2일변화잉정단봉형，과립물급 NO2일변화칙미정현조만쌍봉변화。PM2.5농도여 PM10、SO2、NO2、CO 농도정현저정상관，상관계수분별위0.979、0.663、0.837화0.875，설명오염물래원구유일정적동원성。오염물농도여풍속화상대습도정현저부상관，여온도화대기압강정현저정상관。
A short but intensive snowfall occurred in Nanjing on February 19,2013.Based on meteorological and environmental monitoring data,the impact of this process on various pollution sources and concentrations of pollu-tants was analyzed.Correlations between different pollutants and meteorological factors were discussed by a Pear-son correlation analysis method.The results indicate that this snowstorm has significant impact on area pollution sources in Nanjing.In particular,fugitive dust emissions are almost not found.Mobile sources are mainly influ-enced by the number of vehicle during morning and evening rush hour peaks.Very little impact is found for indus-trial point sources.After this process,the ambient air quality reaches the excellence grade.AQI on February 19 de-creases by 35% compared with that on February 18 or 20,2013.SO2 diurnal variation on February 19 remains to be a single peak,while PM and NO2 diurnal variation in this day is not bimodal pattern as usual.PM2.5 concentra-tion has a significant positive correlation with concentrations of PM10 ,SO2 ,NO2 and CO,and corresponding corre-lation coefficients are 0.979,0.663,0.837,and 0.875 respectively,which means the similar sources of those pol-lutants emissions.Concentrations of pollutants are significant negative correlations with wind speed and relative hu-midity and positive correlations with air temperature and pressure.