The effect of chronic silver nanoparticles on aquatic system in microcosms

doi:10.1016/j.envpol.2017.01.036

CORC > 武汉植物园 > 中国科学院武汉植物园

	The effect of chronic silver nanoparticles on aquatic system in microcosms
	Jiang, Hong Sheng 1,3,4; Yin, Liyan 2; Ren, Na Na 5; Xian, Ling 1,3; Zhao, Suting 1,3; Li, Wei 1,6; Gontero, Brigitte 4
刊名	ENVIRONMENTAL POLLUTION
	2017-04-01
卷号	223 页码:395-402
关键词	AgNPs Aquatic system 16S rDNA Nitrification Microbe
ISSN号	0269-7491
DOI	10.1016/j.envpol.2017.01.036
英文摘要	Silver nanoparticles (AgNPs) inevitably discharge into aquatic environments due to their abundant use in antibacterial products. It was reported that in laboratory conditions, AgNPs display dose-dependent toxicity to aquatic organisms, such as bacteria, algae, macrophytes, snails and fishes. However, AgNPs could behave differently in natural complex environments. In the present study, a series of microcosms were established to investigate the distribution and toxicity of AgNPs at approximately 500 mu g L-1 in aquatic systems. As a comparison, the distribution and toxicity of the same concentration of AgNO3 were also determined. The results showed that the surface layer of sediment was the main sink of Ag element for both AgNPs and AgNO3. Both aquatic plant (Hydrilla verticillata) and animals (Gambusia affinis and Radix spp) significantly accumulated Ag. With short-term treatment, phytoplankton biomass was affected by AgNO3 but not by AgNPs. Chlorophyll content of H. verticillata increased with both AgNPs and AgNO3 short-term exposure. However, the biomass of phytoplankton, aquatic plant and animals was not significantly different between control and samples treated with AgNPs or AgNO3 for 90 d. The communities, diversity and richness of microbes were not significantly affected by AgNPs and AgNO3; in contrast, the nitrification rate and its related microbe (Nitrospira) abundance significantly decreased. AgNPs and AgNO3 may affect the nitrogen cycle and affect the environment and, since they might be also transferred to food web, they represent a risk for health. (C) 2017 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[31170481] ; Wuhan Chen Guang Project[201150431069] ; National Key Research and Development Program of China[2016YFA0601000] ; China Scholarship Council[201504910622] ; Chinese Academy of Sciences[2016VBA006]
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000397359500042
内容类型	期刊论文
源URL	[http://202.127.146.157/handle/2RYDP1HH/1395]
专题	中国科学院武汉植物园
通讯作者	Yin, Liyan; Li, Wei
作者单位	1.Chinese Acad Sci, Wuhan Bot Garden, Key Lab Aquat Bot & Watershed Ecol, Wuhan 430074, Peoples R China 2.Hainan Univ, Coll Agr, Hainan Key Lab Sustainable Utilizat Trop Bioresou, Haikou 570228, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Aix Marseille Univ, BIP UMR 7281, IMM, FR 3479,CNRS, 31 Chemin Joseph Aiguier, F-13402 Marseille 20, France 5.China Univ Petr, Coll Geosci, Beijing 102249, Peoples R China 6.Chinese Acad Sci, Wuhan Bot Garden, Hubei Key Lab Wetland Evolut & Ecol Restorat, Wuhan 430074, Peoples R China
推荐引用方式 GB/T 7714	Jiang, Hong Sheng,Yin, Liyan,Ren, Na Na,et al. The effect of chronic silver nanoparticles on aquatic system in microcosms[J]. ENVIRONMENTAL POLLUTION,2017,223:395-402.
APA	Jiang, Hong Sheng.,Yin, Liyan.,Ren, Na Na.,Xian, Ling.,Zhao, Suting.,...&Gontero, Brigitte.(2017).The effect of chronic silver nanoparticles on aquatic system in microcosms.ENVIRONMENTAL POLLUTION,223,395-402.
MLA	Jiang, Hong Sheng,et al."The effect of chronic silver nanoparticles on aquatic system in microcosms".ENVIRONMENTAL POLLUTION 223(2017):395-402.