Department of Chemistry, University of Florence, Via della Lastruccia 3, 50019 Sesto Fiorentino, Florence, Italy.
Environ Int. 2013 Sep;59:363-71. doi: 10.1016/j.envint.2013.06.006. Epub 2013 Jul 25.
The occurrence of linear- and cyclic-volatile methyl siloxanes (lVMSs and cVMSs, respectively) in various indoor environments, occupational and domestic, in Italy and in the United Kingdom was studied. The results show that the cVMSs are the most abundant, detected in average concentrations that in some cases were as high as 170μgm(-3). Our study highlights the differences that can be observed between various indoor environments (e.g. domestic like bathrooms, bedrooms, or occupational) and between two countries. In most cases, the concentrations found in the UK are higher than in the respective indoor environments in Italy. The assessment of exposure to these two countries for adults and children revealed significant differences both not only in the levels of exposure, but also in the patterns. In Italy, the biggest part of the exposure to VMSs takes place domestically, whereas in the UK, it is observed for occupational environments. Additionally, the compound specific isotopic analysis was employed as a source identification technique. The results are promising mainly for D5 that occurs in higher concentrations, but not for the less abundant lVMSs and cVMSs.
研究了线性和环状挥发性甲基硅氧烷（分别为 lVMSs 和 cVMSs）在意大利和英国的各种室内环境（职业和家庭）中的发生情况。结果表明，cVMSs 是最丰富的，在某些情况下，其平均浓度高达 170μg/m3。我们的研究强调了不同室内环境（例如浴室、卧室或职业环境等）和两个国家之间可能存在的差异。在大多数情况下，英国的浓度高于意大利的相应室内环境。对这两个国家的成年人和儿童进行的暴露评估显示，不仅在暴露水平上，而且在模式上都存在显著差异。在意大利，接触 VMSs 的主要部分发生在家庭环境中，而在英国，主要发生在职业环境中。此外，还采用了化合物特异性同位素分析作为源识别技术。结果对于 D5 是有希望的，因为 D5 浓度较高，但对于较不丰富的 lVMSs 和 cVMSs 则不然。
