Distribution and migration characteristics of dinitrotoluene sulfonates (DNTs) in typical TNT production sites: Effects and health risk assessment

doi:10.1016/j.jenvman.2021.112342

	Distribution and migration characteristics of dinitrotoluene sulfonates (DNTs) in typical TNT production sites: Effects and health risk assessment
	Zhao, Wenchu 1,3; Yang, Xiao 1,3; Feng, Aixi 2; Yan, Xiulan 1,3; Wang, Lingqing 1,3; Liang, Tao 1,3; Liu, Juan 4; Ma, Huansong 2; Zhou, Yaoyu 5
刊名	JOURNAL OF ENVIRONMENTAL MANAGEMENT
	2021-06-01
卷号	287 页码:11
关键词	Soil Dinitrotoluene sulfonate Distribution Geochemical transfer Human health risk assessment
ISSN号	0301-4797
DOI	10.1016/j.jenvman.2021.112342
通讯作者	Yang, Xiao(yangx@igsnrr.ac.cn) ; Yan, Xiulan(yanxl@igsnrr.ac.cn)
英文摘要	The production of 2,4,6-trinitrotoluene (TNT) produces a great deal of waste water, and dinitrotoluene sulfonates (DNTs) are the main pollutants in its waste. This paper presents a pilot investigation on the geochemical transformation of DNTs affected by historical wastewater spillage from a typical TNT production company in Northwest China. In the horizontal direction, DNTs diffused from the evaporation pond to the surrounding area of the site, and the concentration of DNTs in the evaporation pond surface soil exceeded 1000 mg/kg. The horizontal distribution of DNTs in the site showed a migration trend to the east and south of evaporation, which was consistent with the terrain of high northwest and low southeast of the site. Due to the high water solubility of pollutants, water flow is the main driving force for the horizontal distribution of DNTs. In the vertical direction, the concentration of pollutants gradually increased with the depth of the soil. DNTs are mainly adsorbed in the third layer (6.0?8.0 m). It can be seen that the accumulation of the 2,4-DNTs-3-SO3- is obviously larger than that of the 2,4-DNTs-5-SO3- , which may be related to the steric hindrance effect of sulfonic acid groups in the two isomers. Results showed DNTs distribution strongly linked to soil physicochemical properties and the migration of DNTs in soil exhibited obvious heterogeneity in time and space. The carcinogenic risks in surface soil (0?1.5 m) and lower soil (1.5?6.0 m, 6.0?8.0 m) are all higher than 1?10-6; non-carcinogenic risk surface soil (0?1.5 m) is 4.011?10, which is greater than 1, indicating that they may cause certain harm to the human body. Meanwhile, this study presented a pioneering investigation for the contamination and geochemical transfer of DNTs.
资助项目	National Natural Science Foundation of China[41571309] ; Dahegou Soil Treatment Project of Gansu Yinguang Chemical Industry Group Co., Ltd.
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
WOS记录号	WOS:000639196800003
资助机构	National Natural Science Foundation of China ; Dahegou Soil Treatment Project of Gansu Yinguang Chemical Industry Group Co., Ltd.
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/161794]
专题	中国科学院地理科学与资源研究所
通讯作者	Yang, Xiao; Yan, Xiulan
作者单位	1.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 2.Yuhuan Environm Technol Co Ltd, Shijiazhuang 050000, Hebei, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China 4.Guangzhou Univ, Sch Environm Sci & Engn, Inst Environm Res Greater Bay, Minist Educ,Key Lab Water Qual & Conservat Pearl, Guangzhou 510006, Peoples R China 5.Hunan Agr Univ, Coll Resources & Environm, Changsha 410128, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Wenchu,Yang, Xiao,Feng, Aixi,et al. Distribution and migration characteristics of dinitrotoluene sulfonates (DNTs) in typical TNT production sites: Effects and health risk assessment[J]. JOURNAL OF ENVIRONMENTAL MANAGEMENT,2021,287:11.
APA	Zhao, Wenchu.,Yang, Xiao.,Feng, Aixi.,Yan, Xiulan.,Wang, Lingqing.,...&Zhou, Yaoyu.(2021).Distribution and migration characteristics of dinitrotoluene sulfonates (DNTs) in typical TNT production sites: Effects and health risk assessment.JOURNAL OF ENVIRONMENTAL MANAGEMENT,287,11.
MLA	Zhao, Wenchu,et al."Distribution and migration characteristics of dinitrotoluene sulfonates (DNTs) in typical TNT production sites: Effects and health risk assessment".JOURNAL OF ENVIRONMENTAL MANAGEMENT 287(2021):11.