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题名: Observation of Emerging Photoinitiator Additives in Household Environment and Sewage Sludge in China
作者: Liu, Runzeng; Lin, Yongfeng; Hu, Fanbao; Liu, Ruirui; Ruan, Ting; Jiang, Guibin
刊名: ENVIRONMENTAL SCIENCE & TECHNOLOGY
出版日期: 2016-01-05
卷号: 50, 期号:1, 页码:97-104
DOI: 10.1021/acs.est.5b04977
部门归属: 环境化学与生态毒理学国家重点实验室
英文摘要: Photoinitiators (PIs) are widely used additives in industrial polymerization process, the contamination of which through migration into foodstuffs has been subjected to increasing public scrutiny. Nevertheless, little attention has been paid to the PI residue levels and potential exposure pathways from other environmental compartments. In the present study, the occurrence of PI additives with discrete molecular structures, that is, nine benzophenones (BZPs), four thioxanthones (TXs), and eight amine co-initiators (ACIs), was investigated in commercial products, indoor dust and sewage sludge samples. Nine PI compounds were positively detected in ultraviolet curable resins with concentrations of Sigma PIs (sum of the detected PIs) up to 2.51 X 10(4) ng/g, and 20 PIs can be found in food contact materials with concentrations of Sigma PIs varying from 65.9 to 6.93 X 10(3) ng/g. The wide usage of PIs in commercial products led to the occurrence of 19 PIs in indoor dust, with concentrations of Sigma PIs in the range of 245-5.68 X 10(3) ng/g. Meanwhile, all 21 targeted PIs could be identified in the sewage sludge, with concentrations from 67.6 to 2.03 x 10(3) ng/g. Distinct PI composition profiles were observed in different investigated compartments, and BZPs were the dominant homologues in all samples. Most of the target PIs were further identified as class RI chemicals by toxic hazard estimation algorithm (Toxtree), which indicates the compounds might be of significant toxicity or have reactive functional groups.
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/35906
Appears in Collections:环境化学与生态毒理学国家重点实验室_期刊论文

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