Occurrence of synthetic phenolic antioxidants and transformation products in urban and rural indoor dust

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

	Occurrence of synthetic phenolic antioxidants and transformation products in urban and rural indoor dust
	Liu, Runzeng; Lin, Yongfeng; Ruan, Ting; Jiang, Guibin
刊名	ENVIRONMENTAL POLLUTION
	2017-12-01
卷号	221 期号:0 页码:227-233
关键词	Synthetic Phenolic Antioxidants Bht Transformation Products Indoor Dust Estimated Daily Intake
英文摘要	In this study, seven synthetic phenolic antioxidant (SPA) analogues were positively found in urban and rural indoor dust samples collected from Shandong province in China, among which the novel 2,4,6-tri-tert-butylphenol (AO 246), 2,6-di-tert-butyl-4-sec-butylphenol (DTBSBP), 2,4-di-tert-butylphenol (DBP) and 4,4'-butylidenebis (2-(1,1-dimethylethyl)-5-methyl-phenol) (AO 44B25) analogues accounted for 29% of total SPA concentrations (Sigma SPAs). Urban dust showed significantly higher Sigma SPA levels (range: 1.56e3 - 2.03e4 ng/g) compared with those in rural indoor dust (668-4.39e3 ng/g, p < 0.05). 2,6-Di-tert-butyl-4-methylphenol (BHT) was the dominate analogue in the urban indoor dust, which constituted of 74% in Sigma SPAs. While, varied composition profiles of SPAs were noticed in rural indoor dust, for instance, AO 246 (46%) and BHT (43%) had similar contributions to Sigma SPAs. Three BHT transformation products (TPs) were also detected in most of the urban and rural dust samples (>97%), with individual residue level in the same order: 2,6-di-tert-butyl-1,4-benzoquinone (BHT-Q) > 2,6-di-tert-butyl-4-hydroxy- 4-methyl-2,5-cyclo-hexadienone (BHT-quinol) > 3,5-di-tert-butyl-4-hydroxybenzal-dehyde (BHT-CHO). Geometric mean values of total TP concentrations were 555 ng/g and 131 ng/g for urban and rural indoor dust samples, respectively. A preliminary estimated daily intake calculation at dust ingestion scenario suggested additional concerns might be paid to simultaneous exposure of several SPA analogues and TPs besides current focus on BHT exposure risks. (C) 2016 Elsevier Ltd. All rights reserved.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39374]
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	Liu, Runzeng,Lin, Yongfeng,Ruan, Ting,et al. Occurrence of synthetic phenolic antioxidants and transformation products in urban and rural indoor dust[J]. ENVIRONMENTAL POLLUTION,2017,221(0):227-233.
APA	Liu, Runzeng,Lin, Yongfeng,Ruan, Ting,&Jiang, Guibin.(2017).Occurrence of synthetic phenolic antioxidants and transformation products in urban and rural indoor dust.ENVIRONMENTAL POLLUTION,221(0),227-233.
MLA	Liu, Runzeng,et al."Occurrence of synthetic phenolic antioxidants and transformation products in urban and rural indoor dust".ENVIRONMENTAL POLLUTION 221.0(2017):227-233.