干旱区生态环境知识资源中心(Arid): TiO2 nanoparticles in irrigation water mitigate impacts of aged Ag nanoparticles on soil microorganisms, Arabidopsis thaliana plants, and Eisenia fetida earthworms

Arid

DOI	10.1016/j.envres.2019.02.010
	TiO2 nanoparticles in irrigation water mitigate impacts of aged Ag nanoparticles on soil microorganisms, Arabidopsis thaliana plants, and Eisenia fetida earthworms
	Liu, Jia 1,4; Williams, Philip C.1; Goodson, Boyd M.2,4; Geisler-Lee, Jane 3; Fakharifar, Masoud 1; Gemeinhardt, Max E.2
通讯作者	Liu, Jia
来源期刊	ENVIRONMENTAL RESEARCH
ISSN	0013-9351
EISSN	1096-0953
出版年	2019
卷号	172 页码:202-215
英文摘要	Treated wastewater is reclaimed to irrigate crops in a growing number of arid and semi-arid areas. In order to study the impacts of metallic nanoparticles (NPs) present in treated wastewater on soil ecosystems, a soil micro ecosystem containing Arabidopsis thaliana plants, soil microorganisms, and Eisenia fetida earthworms was developed. The soil was irrigated with deionized water containing environmentally relevant concentrations of 70 mu g/L of TiO2 NPs; or 20 mu g/L of an Ag mixture, which included 90% (w/w) Ag2S NPs, 7.5% (w/w) Ag-0 NPs, and 2.5% (w/w) Ag+ to represent speciation of aged Ag NPs in treated wastewater; or a combination of the TiO2 NPs and the Ag mixture to reflect the frequent presence of both types of materials in treated wastewater. It was found that TiO2 NPs alone were not toxic to the soil micro-ecosystem. Irrigation water containing 20 mu g/L of the Ag mixture significantly reduced the soil microbial biomass, and inhibited the growth of plants and earthworms; however, a combination of 70 mu g/L of TiO2 and 20 mu g/L of Ag did not show toxic impact on organism growth compared to the Control of deionized water irrigation. Taken together, these results indicate the importance of investigating the effects of different nanomaterials in combination as they are introduced to the environment-with environmentally relevant concentrations and speciation-instead of only selecting a single NP type or residual ion. Moreover, the results of this study support the safe application of reclaimed water from wastewater treatment plants for use in agricultural lands in regard to limited concentrations of aged NPs (i.e., TiO2 and Ag) if present in combination.
英文关键词	Nanoparticle Irrigation Arabidopsis Microorganism Earthworm Wastewater
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000468377500022
WOS关键词	ORYZA-SATIVA L. ; ENVIRONMENTALLY RELEVANT CONCENTRATIONS ; SILVER NANOPARTICLES ; WASTE-WATER ; ENGINEERED NANOMATERIALS ; TITANIUM-DIOXIDE ; LUMBRICUS-RUBELLUS ; METALLIC NANOPARTICLES ; ANTIBACTERIAL ACTIVITY ; ANTIBIOTIC-RESISTANCE
WOS类目	Environmental Sciences ; Public, Environmental & Occupational Health
WOS研究方向	Environmental Sciences & Ecology ; Public, Environmental & Occupational Health
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215500
作者单位	1.Southern Illinois Univ, Dept Civil & Environm Engn, 1230 Lincoln Dr, Carbondale, IL 62901 USA; 2.Southern Illinois Univ, Dept Chem & Biochem, 1245 Lincoln Dr, Carbondale, IL 62901 USA; 3.Southern Illinois Univ, Dept Plant Biol, 1125 Lincoln Dr, Carbondale, IL 62901 USA; 4.Southern Illinois Univ, Mat Technol Ctr, 1245 Lincoln Dr, Carbondale, IL 62901 USA
推荐引用方式 GB/T 7714	Liu, Jia,Williams, Philip C.,Goodson, Boyd M.,et al. TiO2 nanoparticles in irrigation water mitigate impacts of aged Ag nanoparticles on soil microorganisms, Arabidopsis thaliana plants, and Eisenia fetida earthworms[J],2019,172:202-215.
APA	Liu, Jia,Williams, Philip C.,Goodson, Boyd M.,Geisler-Lee, Jane,Fakharifar, Masoud,&Gemeinhardt, Max E..(2019).TiO2 nanoparticles in irrigation water mitigate impacts of aged Ag nanoparticles on soil microorganisms, Arabidopsis thaliana plants, and Eisenia fetida earthworms.ENVIRONMENTAL RESEARCH,172,202-215.
MLA	Liu, Jia,et al."TiO2 nanoparticles in irrigation water mitigate impacts of aged Ag nanoparticles on soil microorganisms, Arabidopsis thaliana plants, and Eisenia fetida earthworms".ENVIRONMENTAL RESEARCH 172(2019):202-215.