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Distribution and migration characteristics of dinitrotoluene sulfonates (DNTs) in typical TNT production sites: Effects and health risk assessment
Zhao, Wenchu1,2; Yang, Xiao1,2; Feng, Aixi3; Yan, Xiulan1,2; Wang, Lingqing1,2; Liang, Tao1,2; Liu, Juan4; Ma, Huansong3; Zhou, Yaoyu5
2021-06-01
Source PublicationJOURNAL OF ENVIRONMENTAL MANAGEMENT
ISSN0301-4797
Volume287Pages:11
Corresponding AuthorYang, Xiao(yangx@igsnrr.ac.cn) ; Yan, Xiulan(yanxl@igsnrr.ac.cn)
AbstractThe 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.
KeywordSoil Dinitrotoluene sulfonate Distribution Geochemical transfer Human health risk assessment
DOI10.1016/j.jenvman.2021.112342
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[41571309] ; Dahegou Soil Treatment Project of Gansu Yinguang Chemical Industry Group Co., Ltd.
Funding OrganizationNational Natural Science Foundation of China ; Dahegou Soil Treatment Project of Gansu Yinguang Chemical Industry Group Co., Ltd.
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000639196800003
PublisherACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.igsnrr.ac.cn/handle/311030/161795
Collection中国科学院地理科学与资源研究所
Corresponding AuthorYang, Xiao; Yan, Xiulan
Affiliation1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Land Surface Pattern & Simulat, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
3.Yuhuan Environm Technol Co Ltd, Shijiazhuang 050000, Hebei, 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
Recommended Citation
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.
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