Exposure Assessment of Aluminum Arc Welding Radiation

doi:10.1097/01.HP.0000267862.44497.a4

中山醫學大學機構典藏 CSMUIR > 健康管理學院 > 職業安全衛生學系暨碩士班 > 期刊論文 > Item 310902500/3708

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题名:	Exposure Assessment of Aluminum Arc Welding Radiation
作者:	Peng Chiung-yu;Lan Cheng-hang;Juang Yow-jer;Tsao Ta-ho;Dai Yu-tung;Liu Hung-hsin;Chen Chiou-jong
贡献者:	中山醫學大學:職安系
关键词:	exposure, occupational, health effects, hygiene, industrial, maximum permissible exposures
日期:	2007
上传时间:	2011-05-06T03:41:12Z (UTC)
ISSN:	0017-9078
摘要:	The purpose of this study is to evaluate the non-ionizing radiation (NIR) exposure, especially optical radiation levels, and potential health hazard from aluminum arc welding processes based on the American Conference of Governmental Industrial Hygienists (ACGIH) method. The irradiance from the optical radiation emissions can be calculated with various biological effective parameters [i.e., S(λ), B(λ), R(λ)] for NIR hazard assessments. The aluminum arc welding processing scatters bright light with NIR emission including ultraviolet radiation (UVR), visible, and infrared spectra. The UVR effective irradiance (Eeff) has a mean value of 1,100 μW cm-2 at 100 cm distance from the arc spot. The maximum allowance time (tmax) is 2.79 s according to the ACGIH guideline. Blue-light hazard effective irradiance (EBlue) has a mean value of 1840 μW cm-2 (300-700 nm) at 100 cm with a tmax of 5.45 s exposure allowance. Retinal thermal hazard effective calculation shows mean values of 320 mW cm-2 sr-1 and 25.4 mW cm-2 (380-875 nm) for LRetina (spectral radiance) and ERetina (spectral irradiance), respectively. From this study, the NIR measurement from welding optical radiation emissions has been established to evaluate separate types of hazards to the eye and skin simultaneously. The NIR exposure assessment can be applied to other optical emissions from industrial sources. The data from welding assessment strongly suggest employees involved in aluminum welding processing must be fitted with appropriate personal protection devices such as masks and gloves to prevent serious injuries of the skin and eyes upon intense optical exposure.
URI:	https://ir.csmu.edu.tw:8080/handle/310902500/3708 http://dx.doi.org/10.1097/01.HP.0000267862.44497.a4
關聯:	Health Physics,October 2007 - Volume 93 - Issue 4 - pp 298-306;
显示于类别:	[職業安全衛生學系暨碩士班] 期刊論文

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