干旱区生态环境知识资源中心(Arid): Multiphase distribution and migration characteristics of heavy metals in typical sandy intertidal zones: insights from solid-liquid partitioning

Arid

DOI	10.1016/j.ecoenv.2020.111674
	Multiphase distribution and migration characteristics of heavy metals in typical sandy intertidal zones: insights from solid-liquid partitioning
	Liao, Jianbo; Qian, Xiao; Liu, Fang; Deng, Sheng; Lin, Hui; Liu, Xinhui; Wei, Chaohai
通讯作者	Liao, JB (corresponding author), Dongguan Univ Technol, Res Ctr Ecoenvironm Engn, Dongguan 523808, Peoples R China. ; Liu, XH (corresponding author), Beijing Normal Univ, Res & Dev Ctr Watershed Environm Ecoengn, Zhuhai 519087, Peoples R China.
来源期刊	ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY
ISSN	0147-6513
EISSN	1090-2414
出版年	2021
卷号	208
英文摘要	With the increase of development and utilization of coastal tidal flats, the desertification of intertidal zone is becoming more and more serious, which will inevitably lead to changes in the distribution and migration of heavy metals. This study reported the multiphase distribution and solid-liquid partitioning of Cr, Ni, Cu, Zn, Pb and Cd in typical sandy intertidal zones and predicted the migration of heavy metals with stepwise multiple linear regression. The distribution of heavy metals in surface water was comparable with that in pore water, while the content of heavy metals in suspended solids was obviously greater than that in sediments. Compared to non-sandy sediments, the bioavailability state of heavy metals extracted from sandy sediments by diethylene triamine penta-acetic acid was much smaller. The mean partitioning coefficient values (Kd) ranged from 21.56 to 166.18, which were 10-40 times lower than those of organic-rich sediments and 100-750 times lower than those of mineral soils. The dynamics in solid clay, SOC and ORP greatly affected the variations of Kd values. Clay had a significant positive correlation with bioavailability but did not have a significant correlation with logKd, indicating that the adsorption capacity of heavy metals in the intertidal zone is not the only factor controlling heavy metal migration. Stepwise multiple linear regression analysis confirmed that the prediction equations of heavy metals are composed of multiple physicochemical factors. All predicted and tested values were of the same order of magnitude, with R2 values ranging from 0.8223 to 0.9775. Although our data focus on a single species of sandy intertidal zone, characterizing the Kd value and its relationship with site-specific factors provides different tools for assessing the probability of heavy metal contamination and migration in sandy intertidal zones.
英文关键词	Sandy intertidal zone Heavy metals Migration Solid-liquid partitioning Stepwise multiple linear regression
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000604135800017
WOS关键词	ECOLOGICAL RISK-ASSESSMENT ; DAYA BAY ; TRACE-ELEMENTS ; SEDIMENTS ; SOIL ; CONTAMINATION ; RIVER ; COPPER ; ACCUMULATION ; POLLUTION
WOS类目	Environmental Sciences ; Toxicology
WOS研究方向	Environmental Sciences & Ecology ; Toxicology
来源机构	北京师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/347833
作者单位	[Liao, Jianbo; Deng, Sheng; Lin, Hui] Dongguan Univ Technol, Res Ctr Ecoenvironm Engn, Dongguan 523808, Peoples R China; [Qian, Xiao; Liu, Fang; Liu, Xinhui] Beijing Normal Univ, Sch Environm, Beijing 100875, Peoples R China; [Liu, Xinhui] Beijing Normal Univ, Res & Dev Ctr Watershed Environm Ecoengn, Zhuhai 519087, Peoples R China; [Wei, Chaohai] South China Univ Technol, Sch Environm & Energy, Guangzhou 510006, Peoples R China
推荐引用方式 GB/T 7714	Liao, Jianbo,Qian, Xiao,Liu, Fang,et al. Multiphase distribution and migration characteristics of heavy metals in typical sandy intertidal zones: insights from solid-liquid partitioning[J]. 北京师范大学,2021,208.
APA	Liao, Jianbo.,Qian, Xiao.,Liu, Fang.,Deng, Sheng.,Lin, Hui.,...&Wei, Chaohai.(2021).Multiphase distribution and migration characteristics of heavy metals in typical sandy intertidal zones: insights from solid-liquid partitioning.ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY,208.
MLA	Liao, Jianbo,et al."Multiphase distribution and migration characteristics of heavy metals in typical sandy intertidal zones: insights from solid-liquid partitioning".ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 208(2021).