10th International Aerosol Conference September 2 - September 7, 2018 America's Center Convention Complex St. Louis, Missouri, USA
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Predicting Atmospheric Gaseous and Particulate Phase PCDD/F Concentrations Using PM2.5 Data and Gas-Particle Partitioning Models of PCDD/Fs
Rong Zhao, Kangping Cui, Weiwei Wang, Lin-Chi Wang, Ping Yan, WEN-JHY LEE, National Cheng Kung University
Abstract Number: 257 Working Group: Aerosol Modeling
Abstract In this study, the data of PM2.5 in Handan City and Kaifeng City, China from 2015 to 2017 were obtained from Environmental Monitoring Website. The total PCDD/Fs-WHO2005-TEQ concentrations in ambient air were predicted by using two established equations for proportional relationships between PM10 and PCDD/F mass concentrations. The obtained total PCDD/Fs-WHO2005-TEQ concentrations in Handan city in spring, summer, autumn and winter were 0.100, 0.058, 0.087, and 0.127 pg WHO2005-TEQ m–3, respectively. The averaged total PCDD/Fs-WHO2005-TEQ concentration in Handan (0.093 pg-WHO2005-TEQ m–3) was 1.3 times of magnitude higher than that in Kaifeng (0.073 pg-WHO2005-TEQ m–3) due to higher consumption of heating coal and atmospheric inversion in winter. Furthermore, AQI index could be used to predict the level of total PCDD/Fs-WHO2005-TEQ in ambient air through regression equation. The R2 in 2015, 2016 and 2017 were 0.929, 0.921 and 0.876, respectively.