Health Service Center, Aichi University of Education, Japan.
Department of Occupational and Environmental Health, Graduate School of Medical Sciences, Nagoya City University, Japan.
Ind Health. 2024 Jul 24;62(4):271-280. doi: 10.2486/indhealth.2023-0185. Epub 2024 Mar 25.
Librarians at a university had planned to check the collection prior to the library renovations that began in 2015. They had previous knowledge of the presence of a light greyish-white powder with an unpleasant odour (hereinafter referred to as 'powder') sprinkled between the pages of antiquarian books in the library archive. The purpose of this study was to identify this powder with the help of experts from both inside and outside the university. The powder was qualitatively analysed using gas chromatography with mass spectrometry after hexane extraction. The powder was examined under a polarised light microscope and a field-emission scanning electron microscope equipped with an energy-dispersive X-ray spectrometer. Benzene hexachloride (BHC) was detected in the powder. Talc was the most abundant particle in the powder. The powder also contained 0.52 wt% asbestos, which belonged to the tremolite-actinolite series. No other types of asbestos were detected. The powder was presumed to be a bulking agent for BHC, and its major constituent was talc. This is the first report on asbestos-containing insecticides.
大学图书馆员计划在 2015 年开始图书馆翻新之前对藏书进行检查。他们之前就知道图书馆档案中旧书的书页之间撒有一种浅灰白色粉末，气味难闻（以下简称“粉末”）。本研究的目的是在大学内外的专家的帮助下确定这种粉末。粉末经过正己烷提取后，使用气相色谱-质谱法进行定性分析。在偏光显微镜和场发射扫描电子显微镜下，粉末用能量色散 X 射线光谱仪进行了检查。在粉末中检测到了六氯环己烷（BHC）。滑石粉是粉末中含量最丰富的颗粒。粉末还含有 0.52wt%的石棉，属于透闪石-阳起石系列。未检测到其他类型的石棉。该粉末被认为是 BHC 的膨化剂，其主要成分是滑石粉。这是首例含石棉杀虫剂的报告。
