Study on deposition effects of dioxins based on different air quality models
SHI Meng-xue1, BO Xin2,3, TIAN Fei4, YANG Zhao-Xu5, WANG Gang6, MA Gen-hui7, JIA Yu-ling8, LI Shi-bei2,3, ZHU Bin1
1. School of Atmospheric Physics, Nanjing University of Information Science & Technology, Nanjing 210044, China;
2. Appraisal Center for Environment and Engineering, Ministry of Ecology and Environment, Beijing 100012, China;
3. State Environmental Protection Key Laboratory of Numerical Modeling for Environment Impact Assessment, Beijing 100012, China;
4. Shandong Academy of Environmental Science Co., Ltd., Jinan 250013, China;
5. College of Resources and Environmental Engineering, Jilin Institute of Chemical Technology, Jilin 132022, China;
6. Trinity Consultants, Hangzhou 310012, China;
7. CERC(China) Co., Ltd., Beijing 100872, China;
8. Sichuan Environment and Engineering Appraisal Center, Chengdu 610041, China
In order to evaluate the modeling effects of different air quality models (AERMOD, ADMS and CALPUFF) on dry and wet deposition under complex terrain-weather conditions, using the above models simulated the impacts of dioxins on ambient environment from the medical waste and waste incineration projects which were in a representative mountainous area in southwest China. The deposition effects were verified by analysis of soil sampling data. The results showed that the annual average concentrations in the air modeled by AERMOD, ADMS and CALPUFF were 1.53×10-8~4.14×10-6, 5.23×10-9~3.28×10-6 and 2.66×10-9~2.59×10-7 ngTEQ/m3 respectively; the results of total soil deposition at the monitoring points modeled by AERMOD, ADMS and CALPUFF were 4.41~285.72, 3.07~268.02 and 0.02~1.35ngTEQ/m2 respectively. The modeling results of CALPUFF showed great differences in both diffusion & deposition patterns, compared to the other two models. The simulated deposition patterns of AERMOD and ADMS were similar, while the simulated diffusion patterns in the air were not. Through the verification of soil monitoring data, it was found that the correlation coefficients r of AERMOD, ADMS and CALPUFF were 0.66, 0.70 and 0.83 respectively. The modeling results of CALPUFF were superior in spatial distribution and can be used as the guidance model for related projects.
史梦雪, 伯鑫, 田飞, 杨朝旭, 王刚, 马根慧, 贾瑜玲, 李时蓓, 朱彬. 基于不同空气质量模型的二噁英沉降效果研究[J]. 中国环境科学, 2020, 40(1): 24-30.
SHI Meng-xue, BO Xin, TIAN Fei, YANG Zhao-Xu, WANG Gang, MA Gen-hui, JIA Yu-ling, LI Shi-bei, ZHU Bin. Study on deposition effects of dioxins based on different air quality models. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(1): 24-30.
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