Bioaccumulation of C-14-Labeled Graphene in an Aquatic Food Chain through Direct Uptake or Trophic Transfer

CORC > 生态环境研究中心 > 中国科学院生态环境研究中心 > 环境化学与生态毒理学国家重点实验室

	Bioaccumulation of C-14-Labeled Graphene in an Aquatic Food Chain through Direct Uptake or Trophic Transfer
	Dong, Shipeng; Xia, Tian; Yang, Yu; Lin, Sijie; Mao, Liang
刊名	ENVIRONMENTAL SCIENCE & TECHNOLOGY
	2018-01-16
卷号	52 期号:2 页码:541-549
ISSN号	0013-936X
文献子类	Article
英文摘要	The growing applications of graphene materials warrant a careful evaluation of their environmental fate in aquatic food webs. Escherichia coli (Bacteria), Tetrahymena thermophila (protozoa), Daphnia magna (zooplankton), and Danio rerio (vertebrate) were used to build aquatic food chains to investigate the waterborne uptake and trophic transfer of C-14-labeled graphene. Body burden factor (BBF) and trophic transfer factor (TTF) were analyzed for each organism and food chain to assess the bioaccumulation and biomagnification of graphene. The test organisms have high potential of accumulating graphene via direct uptake from culture medium with log-transformed BBF (log BBF) values of 3.66, 5.1, 3.9, and 1.62 for each organism, respectively. In the food chain from E. coli to T. thermophila, the calculated TTFs of 0.2 to 8.6 indicate the high trophic transfer potential in this aquatic food chain. However, the TTFs calculated for the food chain from T. thermophila to D. magna and from D. magna to D. rerio are much lower than 1, indicating that biomagnification was unlikely to occur in these food chains. Body burden measured for dietary uptake by T. thermophila, D. magna, and D. rerio are higher than that via waterborne exposure in a similar nominal concentration, respectively, indicating that trophic transfer is a nonnegligible route for the bioaccumulation of graphene in organisms.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/40886]
专题	生态环境研究中心_环境化学与生态毒理学国家重点实验室
推荐引用方式 GB/T 7714	Dong, Shipeng,Xia, Tian,Yang, Yu,et al. Bioaccumulation of C-14-Labeled Graphene in an Aquatic Food Chain through Direct Uptake or Trophic Transfer[J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY,2018,52(2):541-549.
APA	Dong, Shipeng,Xia, Tian,Yang, Yu,Lin, Sijie,&Mao, Liang.(2018).Bioaccumulation of C-14-Labeled Graphene in an Aquatic Food Chain through Direct Uptake or Trophic Transfer.ENVIRONMENTAL SCIENCE & TECHNOLOGY,52(2),541-549.
MLA	Dong, Shipeng,et al."Bioaccumulation of C-14-Labeled Graphene in an Aquatic Food Chain through Direct Uptake or Trophic Transfer".ENVIRONMENTAL SCIENCE & TECHNOLOGY 52.2(2018):541-549.