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Asbestos Exposure in the Research LaboratoryGarcia, Ediberto D. 01 January 2013 (has links)
Introduction: Asbestos has been employed in a myriad of industrial applications for more than a century. Of the 181 Mt of asbestos produced worldwide, over 31 Mt was consumed in the U.S. The production and consumption of this mineral eventually was found to cause asbestosis, lung cancer and mesothelioma. While the brunt of the human exposure to asbestos occurred in insulation work, many more workers in other jobs were expose to asbestos fibers. Very little is known about the potential exposure to asbestos in research labs.
Goal: In order to investigate potential research lab work exposures, we simulated lab work with various asbestos-containing items commonly found in research laboratories: 6 wire gauze pads, 3 gloves, 3 beaker tongs, and 3 Transite boards. All samples were analyzed by Phase Contrast Microscopy and, when appropriate, by Transmission Electron Microscopy and Polarized Light Microscopy.
Results: All tested items were confirmed by bulk sampling to have asbestos fibers in their composition. Exposures from the 7 wire gauze pads were significantly lower than the PEL and the excursion limit, the highest exposure concentration measuring 0.029 f/cc. For the 3 beaker tongs with asbestos sleeves, exposure was below the PEL for 2 of the 3, with one resulting in an exposure of 0.160 f/cc (8-h TWA = 0.01 f/cc). For the Transite boards had the highest exposures of all tested items, with a maximum concentration of 0.320 f/cc (8-h TWA = 0.02 f/cc).
Conclusion: Asbestos exposure in our simulated research lab work was significantly lower than any of the historical exposures associated with asbestos-related disease including cancer.
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A funeral homeChan, Hong-ming, Dennis., 陳康明. January 1998 (has links)
published_or_final_version / Architecture / Master / Master of Architecture
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Kwun Tong civil/cultural complex姚木輝, Yiu, Muk-fai. January 1995 (has links)
published_or_final_version / Architecture / Master / Master of Architecture
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Artists village-place (space) for artists in Yau Tong Bay, Yau TongLeung, Lo-ming., 梁路明. January 1999 (has links)
published_or_final_version / Architecture / Master / Master of Architecture
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Connecting Kwun TongLeung, Yiu-fai, Bernard., 梁曜暉. January 2004 (has links)
published_or_final_version / Architecture / Master / Master of Architecture
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Visual arts warehouses, Yau TongYu, Ka-wah, Janet, 余嘉華 January 2001 (has links)
published_or_final_version / Architecture / Master / Master of Architecture
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Zhen jiu zhi liao san cha shen jing tong lin chuang de xi tong fen xi /Su, Wenhua. January 2006 (has links) (PDF)
Thesis (M.CM)--Hong Kong Baptist University, 2006. / Dissertation submitted to the School of Chinese Medicine. Includes bibliographical references (leaves 61-63).
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Wu shi Zhong yi shou fa zhi liao yao tong de lin chuang yan jiu /Huang, Yuyun. January 2006 (has links) (PDF)
Thesis (M.CM)--Hong Kong Baptist University, 2006. / Dissertation submitted to the School of Chinese Medicine. Includes bibliographical references (leaf 53).
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Zhen ci dui ying ji fan ying zhong xue ya he xin shuai de ying xiang ji qi ji li tan tao : wen xian zong shu /Huang, Shaofen. January 2006 (has links) (PDF)
Thesis (M.CM)--Hong Kong Baptist University, 2006. / Dissertation submitted to the School of Chinese Medicine. Includes bibliographical references.
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Is Kowloon Tong a representative environment? /Sun, Kwok-kee. January 1998 (has links)
Thesis (M. Sc.)--University of Hong Kong, 1998. / Includes bibliographical references (leaf [76]).
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