基于不同空气质量模型的二噁英沉降效果研究

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Abstract

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.

Key words： dioxin AERMOD deposition ADMS CALPUFF

Received: 18 June 2019

PACS:

X511

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	Articles by authors
	SHI Meng-xue
	BO Xin
	TIAN Fei
	YANG Zhao-Xu
	WANG Gang
	MA Gen-hui
	JIA Yu-ling
	LI Shi-bei
	ZHU Bin

Cite this article:

SHI Meng-xue,BO Xin,TIAN Fei等. Study on deposition effects of dioxins based on different air quality models[J]. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(1): 24-30.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2020/V40/I1/24

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