Determination of benzo(a)pyrene emission factor using inverse model
BO Xin1,2, LI Shi-bei2, WU Zhong-xiang3, LI Chong-yang4, SHANG Guo-dong5, REN Hao6, ZHOU Bei-hai1
1. Civil and Environmental Engineering School, University of Science and Technology Beijing, Beijing 100083, China;
2. The Appraisal Center for Environment and Engineering, Ministry of Environmental Protection, Beijing 100012, China;
3. Exponent, Maynard, Massachusetts, USA 01754;
4. Beijing Municipal Research Institute of Environmental Protection, Beijing 100037, China;
5. School of Environment, Tsinghua University, Beijing 100084, China;
6. Southwest Jiaotong University, Chengdu 610000, China
Since it is difficult to measure BAP unorganized emissions directly from coke ovens, a large uncertainty exists in related studies. So with the observation data and production capacity of a coke plant in Shanghai from 1999 to 2003, we used an inverse model based on AERMOD (AMS/EPA REGULATORY MODEL) to estimate the BAP emission factor. The results show that annual concentration of three monitoring stations near this plant are 0.033,0.0024,0.0031μg/m3, all exceeded the standard. The unorganized emission factor from this study was 14.71mg/tcoke, The area where BAP concentration exceeded the standard was 125km2 surrounding the coke plant and the atmospheric environment protection zone should be set to 6300m.
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