CAJ | 학술논문

在重庆市大气污染区域输送通道上设置龙市站、超级站、南坪站三个观测站点，利用基于被动DOAS技术的MAX-DOAS地基多轴差分吸收光谱仪对SO2和NO2垂直柱浓度进行连续探测，实时获取两种大气污染物的时空分布和区域性输送过程，并将MAX-DOAS探测结果与当地API数据进行了对比分析。探测结果显示，龙市站、超级站、南坪站NO2垂直柱浓度均值分别为5.90×1015、18.96×1015、17.82×1015 molec./cm2，超级站最高，龙市站最低；SO2垂直柱浓度均值分别为16.46×1015、18.35×1015、55.56×1015 molec./cm2，南坪站最高，龙市站最低；分析研究表明，NO2受本地交通排放源影响为主，SO2则受周边工业污染源排放的影响较大。
재중경시대기오염구역수송통도상설치룡시참、초급참、남평참삼개관측참점，이용기우피동DOAS기술적MAX-DOAS지기다축차분흡수광보의대SO2화NO2수직주농도진행련속탐측，실시획취량충대기오염물적시공분포화구역성수송과정，병장MAX-DOAS탐측결과여당지API수거진행료대비분석。탐측결과현시，룡시참、초급참、남평참NO2수직주농도균치분별위5.90×1015、18.96×1015、17.82×1015 molec./cm2，초급참최고，룡시참최저；SO2수직주농도균치분별위16.46×1015、18.35×1015、55.56×1015 molec./cm2，남평참최고，룡시참최저；분석연구표명，NO2수본지교통배방원영향위주，SO2칙수주변공업오염원배방적영향교대。
Three monitoring sites, namely Longshi site, supersite, Nanping site, were arranged in the transport pathway of atmospheric pollutants in Chongqing. Vertical column concentration of SO2 and NO2 was detected contin-uously with MAX-DOAS ground-based multi-axis differential absorption spectrometer and results were compared to local API data. Real-time spatial and temporal distributions of both pollutants as well as their regional transport pro-cess were observed. It was found that the average vertical column concentration of NO2 at Longshi site, supersite and Nanping site was 5.90 × 1015、18.96 × 1015、17.82 × 1015 molec./cm2, respectively, with supersite having the highest NO2 concentration and Longshi site the lowest. In comparison, the average vertical column concentration of SO2 was 16.46 × 1015、18.35 × 1015、55.56 × 1015 molec./cm2 at sites in the same order and the highest and lowest SO2 concentra-tion appeared at Nanping site and Longshi site, respectively. Analysis indicated that NO2 mainly come from local traf-fic emissions, while SO2 was greatly influenced by surrounding industrial emissions.