As, Cd, and Pb relative bioavailability in contaminated soils: Coupling mouse bioassay with UBM assay

doi:10.1016/j.envint.2019.05.069

	As, Cd, and Pb relative bioavailability in contaminated soils: Coupling mouse bioassay with UBM assay
	Zhu X; Li MY; Chen XQ; Wang JY; Li LZ; Tu C; Luo YM; Li HB; Ma LQ
发表期刊	Environment International
ISSN	0160-4120
	2019
卷号	130 页码:104875
关键词	Heavy metals Mouse model Bioavailability In vitro assay Bioaccessibility
研究领域	Environmental Sciences
DOI	10.1016/j.envint.2019.05.069
产权排序	[Zhu, Xia; Li, Lian-Zhen; Tu, Chen; Luo, Yong-Ming] Chinese Acad Sci, Yantai Inst Coastal Zone Res, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China; [Zhu, Xia; Luo, Yong-Ming] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Li, Meng-Ya; Chen, Xiao-Qiang; Wang, Jue-Yang; Li, Hong-Bo; Ma, Lena Q.] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210023, Jiangsu, Peoples R China; [Luo, Yong-Ming] Chinese Acad Sci, Inst Soil Sci, Key Lab Soil Environm & Pollut Remediat, Nanjing 210008, Jiangsu, Peoples R China; [Ma, Lena Q.] Univ Florida, Soil & Water Sci Dept, Gainesville, FL 32611 USA
通讯作者	Luo, Yong-Ming(ymluo@yic.ac.cn) ; Li, Hong-Bo(hongboli@nju.edu.cn)
作者部门	海岸带环境过程实验室
英文摘要	The robustness of in vitro bioaccessibility assays to predict oral relative bioavailability (RBA) of multiple metals in contaminated soils requires validation using additional soil samples. In this study, 11 contaminated soils from mining/smelting areas were analyzed for As-, Cd-, and Pb-RBA using a mouse bioassay and metal bioaccessibility via the UBM gastric phase assay. Metal-RBA varied considerably among soils, with As-RBA (2.5-23%, mean 12%) being generally lower than Cd-and Pb-RBA (3.4-88 and 3.3-59%, mean 42 and 28%), due to higher proportions of As in the residual fractions. Metal-RBA generally decreased with increasing metal concentrations probably due to reduced labile metal fractions. In addition, strong negative correlations were observed between total Fe with As-, Cd-, and Pb-RBA (R-2 = 0.46-0.77), suggesting the role of Fe in controlling metal-RBA in soils. Like RBA, metal bioaccessibility by the UBM assay also varied among samples. However, strong in vivo-in vitro correlations (IVIVCs) were observed between metal-RBA and bioaccessibility (R-2 = 0.52-0.81). Further, there were little differences when As-, Cd-, and Pb-IVIVCs established using soils from this study and soils pooled from literature were compared, suggesting the robustness of the UBM assay to predict metal-RBA in contaminated soils.
文章类型	Article
资助机构	National Key Research and Development Plan Projects ; National Natural Science Foundation of China
收录类别	SCI
语种	英语
关键词[WOS]	IN-VITRO ASSAYS ; UNIFIED BARGE METHOD ; ARSENIC BIOAVAILABILITY ; PREDICTIVE CAPABILITIES ; BIOACCESSIBILITY ; LEAD ; VIVO ; CADMIUM ; VALIDATION ; SPECIATION
研究领域[WOS]	Environmental Sciences
WOS记录号	WOS:000477934800014
引用统计	被引频次：23[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/24141
专题	中国科学院海岸带环境过程与生态修复重点实验室中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
通讯作者	Luo YM; Li HB
推荐引用方式 GB/T 7714	Zhu X,Li MY,Chen XQ,et al. As, Cd, and Pb relative bioavailability in contaminated soils: Coupling mouse bioassay with UBM assay[J]. Environment International,2019,130:104875.
APA	Zhu X.,Li MY.,Chen XQ.,Wang JY.,Li LZ.,...&Ma LQ.(2019).As, Cd, and Pb relative bioavailability in contaminated soils: Coupling mouse bioassay with UBM assay.Environment International,130,104875.
MLA	Zhu X,et al."As, Cd, and Pb relative bioavailability in contaminated soils: Coupling mouse bioassay with UBM assay".Environment International 130(2019):104875.