Methylsiloxanes in children silicone-containing products from China: Profiles, leaching, and children exposure
文献类型：期刊论文
| 作者 | Xu, Lin; Zhi, Liqin; Cai, Yaqi |
| 刊名 | ENVIRONMENT INTERNATIONAL
 |
| 出版日期 | 2017-12-01 |
| 卷号 | 101期号:0页码:165-172 |
| 关键词 | Methylsiloxane Children Silicone-containing Product Leaching Test Mouthing Exposure |
| 英文摘要 | Methylsiloxanes (D4 -D6, L5 -L16) were detected in children silicone -containing products (n = 190, detected frequencies = 46-89%) marketed in China. For the 15 target compounds, the average concentrations ranged from < LOQ - 0.005 +/- 0.007 mu g/g in hard toys, 0.084 +/- 0.281-22.2 +/- 29.6 mu g/g in pacifiers, 0.020 +/- 0.023-20.6 +/- 16.0 mu g/g in teethers, and 0.005 +/- 0.009-2.81 +/- 322 mu g in soft rubber toys. Linear methylsiloxanes were predominant in these four types of children products. In the leaching test, except for L6, the other 14 methylsiloxanes were detected (mean = 0.001 +/- 0.008-0.770 +/- 2.60 ng/mL) in saliva leachates for children products, with the detection frequencies ranging from 4 to 46%. The conservative mouthing exposure for children were 6.87-18.05 ng/kg bw-day via pacifiers and 0.44-2.29 ng/kg bw-day via teether/soft rubber toys for Sigma cyclic methylsiloxanes, and 7.89-20.74 ng/kg bw-day via pacifiers and 0.41-2.12 ng/kg bw-day via teether/soft rubber toys for E linear methylsiloxanes. Methylsiloxanes conservative mouthing exposure associated with children products were 1-2 order of magnitudes lower than the sum of children's daily inhalation exposure and dust ingestion exposure in the indoor environment. The above results indicated that although methylsilOXanes, as the impurities of polydimethylsiloxane, distributed in children silicone -containing products, exposure arising from directly mouthing these products may not be the dominated pathway for children exposure of methylsiloxanes. (C) 2017 Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/39362]  |
| 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 | Xu, Lin,Zhi, Liqin,Cai, Yaqi. Methylsiloxanes in children silicone-containing products from China: Profiles, leaching, and children exposure[J]. ENVIRONMENT INTERNATIONAL,2017,101(0):165-172. |
| APA | Xu, Lin,Zhi, Liqin,&Cai, Yaqi.(2017).Methylsiloxanes in children silicone-containing products from China: Profiles, leaching, and children exposure.ENVIRONMENT INTERNATIONAL,101(0),165-172. |
| MLA | Xu, Lin,et al."Methylsiloxanes in children silicone-containing products from China: Profiles, leaching, and children exposure".ENVIRONMENT INTERNATIONAL 101.0(2017):165-172. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。