Erythemal irradiances of filtered ultraviolet radiation
نویسندگان
چکیده
منابع مشابه
Erythemal irradiances of filtered ultraviolet radiation.
A spectrum evaluator (3 cm x 3 cm) employing four passive dosimeters has been used to evaluate the time averaged spectrum to allow calculation of the erythemal exposures resulting from the predominantly UVA component of filtered solar ultraviolet radiation. An exposure interval of approximately 20 min to autumn and spring sunshine was required for the spectrum evaluator to allow evaluation of t...
متن کاملInfluence of solar UVA on erythemal irradiances.
Many materials in everyday use such as window glass in homes and offices, glass in sunrooms and greenhouses, vehicle glass and some brands of sunscreens act as a barrier to the shorter UVB wavelengths while transmitting some of the longer UVA wavelengths. This paper reports on the erythemal exposures due to the UVA waveband encountered over a 12-month period for a solar zenith angle (SZA) range...
متن کاملSpatiotemporal exposure modeling of ambient erythemal ultraviolet radiation
BACKGROUND Ultraviolet B (UV-B) radiation plays a multifaceted role in human health, inducing DNA damage and representing the primary source of vitamin D for most humans; however, current U.S. UV exposure models are limited in spatial, temporal, and/or spectral resolution. Area-to-point (ATP) residual kriging is a geostatistical method that can be used to create a spatiotemporal exposure model ...
متن کاملHuman Exposure to Filtered Solar Ultraviolet Radiation
The erythemal exposure due to filtered ultraviolet radiation has been evaluated with a dosimetric spectrum evaluator in a glass enclosure to simulate a sun-room with glass roof and walls, in a greenhouse and in a small and large car. The ratio expressed as a percent of the erythemal irradiances to the shoulder of a person in an upright position inside each of the environments to those measured ...
متن کاملThe Relationship Between Disability-Adjusted Life Years of Cataracts and Ambient Erythemal Ultraviolet Radiation in China
BACKGROUND Cataracts are one of the major public health problems worldwide. Ultraviolet radiation (UVR) is one of the risk factors for cataract development. We analyzed the relationship between disability-adjusted life year (DALY) rates of cataracts and UVR exposure in China. METHODS DALY rates of cataracts and UVR exposure in 31 regions of China were calculated based on data from the Second ...
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ژورنال
عنوان ژورنال: Physics in Medicine and Biology
سال: 1997
ISSN: 0031-9155,1361-6560
DOI: 10.1088/0031-9155/42/7/003