埃及室内灰尘和食品包装材料中的多氟和全氟烷基物质 (PFASs)：发达国家和发展中国家的趋势。
Poly- and perfluoroalkyl substances (PFASs) in indoor dust and food packaging materials in Egypt: Trends in developed and developing countries.
机构信息
Department of Chemistry, The American University in Cairo, New Cairo 11835, Egypt; Centre for Analytical Science, Department of Chemistry, Loughborough University, Loughborough, Leicestershire LE11 3TU, UK.
Department of Chemistry, The American University in Cairo, New Cairo 11835, Egypt.
出版信息
Chemosphere. 2016 Feb;144:1573-81. doi: 10.1016/j.chemosphere.2015.08.066. Epub 2015 Oct 26.
PFASs concentrations in dust samples collected from three microenvironments in Cairo ranged from 1.3 to 69 ng g(-1) with FTOHs being dominant. The 8:2 FTOH was detected in all samples. Among the FOSAs and FOSEs the MeFOSE was dominant while among ionic PFASs, PFOS and PFOA were most prominent. The concentrations of PFASs were among the lowest worldwide. Correlations between worldwide concentrations of PFOS + PFOA and country development indexes highlight higher usage and human exposure in more developed countries. Food packaging was analyzed for PFSAs, PFCAs and PAPs. The 6:2 and 8:2 monoPAPs were found to be above the MDL in 18% of the samples. PFOA was detected in 79% of the samples with median concentration of 2.40 ng g(-1). PFOS was detected in 58% of the samples with median concentration of 0.29 ng g(-1) while PFHxS and PFDS were below detection limit. Different human exposure scenarios were estimated.
PFASs 浓度在开罗三个微环境中的灰尘样本中从 1.3 到 69ng/g 不等，其中 FTOHs 占主导地位。所有样品中都检测到了 8:2 FTOH。在 FOSAs 和 FOSEs 中，MeFOSE 占主导地位，而在离子型 PFASs 中，PFOS 和 PFOA 最为突出。PFASs 的浓度在全球范围内处于最低水平。PFOS+PFOA 在世界范围内的浓度与国家发展指数之间的相关性突出了在较发达的国家中更高的使用和人类暴露程度。对食品包装进行了 PFSAs、PFCAs 和 PAPs 的分析。在 18%的样本中，6:2 和 8:2 单 PAPs 的浓度高于 MDL。79%的样本中检测到了 PFOA，其浓度中位数为 2.40ng/g。58%的样本中检测到了 PFOS，浓度中位数为 0.29ng/g，而 PFHxS 和 PFDS 的浓度低于检测限。估计了不同的人类暴露情景。
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