Azizi Mahtab, Golmohammadi Rostam, Aliabadi Mohsen
Department of Occupational Health, School of Public Health, Hamadan University of Medical Sciences, Hamadan, Iran.
Center of Excellence for Occupational Health, Research Center for Health Sciences, Hamadan University of Medical Sciences, Hamadan, Iran.
J Res Health Sci. 2016 fall;16(4):200-205.
Some characteristics of lighting sources such as color properties and ultraviolet emissions have important roles on visual and non-visual health effects of lighting. This study aimed to investigate the light emissions of some compact fluorescent lamps (CFLs) and incandescent lamps commercially available to the Iranian consumers.
Sixty lamps included 48 single envelope CFLs, and 12 incandescent lamps available in the electrical devices markets (in the west of Iran) were randomly selected from famous manufacturers between 2014 and 2015. Lighting characteristics and ultraviolet (UV) emissions were measured using spectroradiometer and calibrated radiometer, respectively. Data analysis was performed using SPSS16 software.
Color-rendering indexes of the studied lamps were above 80, which showed good color properties. The daylight CFLs had more desirable and natural color temperature (near to 5000 0k) compared with the other types of the studied lamps. Occupational exposures for periods up 8 h to UVB from the studied lamps at distances up to 0.25 m were more than the recommended limits. Moreover, public exposures for periods up 16 h to UVB from the studied lamps at any distances up to 2 m were more than the recommended limits.
Warm white lamps are suitable for homes usage, while daylight lamps can be used for offices rooms. Occupational exposure to single envelope CFLs near the body at distances of less than 25 cm can result in overexposure to actinic UV. Moreover, CFLs must be used at distances greater than 200 cm for public exposure.
光源的某些特性，如颜色特性和紫外线发射，对光照的视觉和非视觉健康影响具有重要作用。本研究旨在调查一些伊朗消费者可买到的紧凑型荧光灯（CFL）和白炽灯的光发射情况。
2014年至2015年间，从著名制造商处随机选取了60盏灯，其中包括48盏单端紧凑型荧光灯和12盏伊朗西部电器市场上可买到的白炽灯。分别使用光谱辐射计和校准辐射计测量照明特性和紫外线（UV）发射。使用SPSS16软件进行数据分析。
所研究灯具的显色指数均高于80，显示出良好的颜色特性。与其他类型的研究灯具相比，日光紧凑型荧光灯具有更理想、更自然的色温（接近5000K）。在距离灯具0.25米以内，工作8小时对UVB的职业暴露超过了推荐限值。此外，在距离灯具2米以内的任何距离，公众暴露16小时对UVB的暴露也超过了推荐限值。
暖白色灯适用于家庭使用，而日关灯可用于办公室。在距离身体不到25厘米的地方使用单端紧凑型荧光灯进行职业暴露，可能会导致过度暴露于光化性紫外线。此外，紧凑型荧光灯用于公众暴露时，必须在距离大于200厘米的地方使用。
