A Study on Distribution of Volatile Organic Compounds Concentration over Paju National Publishing Complex

Paju National Publishing Complex emitted many Volatile Organic Compounds (VOCs). As a precursor of ozone and secondary organic aerosol, VOCs effected on climate change, air quality degradation, and human health. In this study, we used a real-time monitoring device of proton transfer reaction-time of flight-mass spectrometer (PTR-ToF-Ms) on board a mobile laboratory to measure the concentration on the Paju National Publishing Complex from September 9 to September 11, 2021. Mobile measurement found that dominant species of VOCs in the Paju National Publishing Complex are investigated with toluene (22.51 ± 2.14%), methanol (19.04 ± 0.96%), and acetone (16.39 ± 0.61%). Temporal and spatial distributions of VOCs on Sep. 9 (M6), Sep. 10 (M8), and Sep. 11 (M15) cases showed mostly high concentrations. Moreover, heatmap analysis suggested a high pollution area near the printing industry. Based on the characteristics of VOCs distribution, it is conceivable that small-scale industry emission control could lead to regional air quality improvement.