Quantitative Assessment Of Human Exposure –
UVA Radiation
Author(s)
M. G. Kimlin, A. V. Parisi, J. M. Macaranas & D. J. Turnbull
Abstract
Humans are exposed to ultraviolet radiation in their normal day-to-day lives.
Much research has been conducted into the impact of exposure to UVB radiation
(280 – 320nm), whist research into impact of exposures to UVA radiation (320 –
400 nm) is gaining momentum. Exposure to UVA radiation has been linked to
increasing the risk of skin cancer, DNA damage, ocular diseases and
immunosuppression. Unlike UVB radiation, UVA radiation is transmitted
through material such as window glass found in offices and homes. Accordingly,
humans are exposed to this radiation in environments where UV exposure is not
normally associated (indoors). This paper describes a prototype UVA dosimeter
that is responsive to the UVA wavelengths only and does not respond to the
UVB wavelengths and how this dosimeter can be used to assess personal UVA
exposure.
Keywords: UVA radiation, solar UV, dosimetry.
1 Introduction
Most acute responses of humans to UV exposure occur as a result of UVB
exposures (280nm to 320nm), as these wavelengths are highly sensitive in
creating a human biological response. However, of the solar UV radiation
reaching the surface of the earth, only 5% of it comes from UVB while at least
95% of the remaining comes from UVA (320 to 400nm). This high proportion of
UVA reaching the earth’s surface has prompted an awareness of its likely
Keywords
UVA radiation, solar UV, dosimetry.
Related Book
Other papers in this volume
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