The NO2, SO2, and HCHO trospheric vertical densities in Nanjing by MAX-DOAS, 2019

Based on ground-based MAX-DOAS, the concentrations of NO2, SO2 and HCHO vertical columns in the troposphere in Nanjing were observed, and the spatial and temporal variation characteristics and transport rules of pollutants in Nanjing were analyzed combined with the potential source model.本研究基于地基多轴差分吸收光谱（MAX-DOAS）技术，对南京地区对流层内二氧化氮（NO₂）、二氧化硫（SO₂）及甲醛（HCHO）的垂直柱浓度开展观测，并结合潜在源模型，分析了南京地区污染物的时空变化特征与传输规律。