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Paper
Photochem. Photobiol. Sci., 2003, 2, 365 - 369, DOI: 10.1039/b207953d
Human UVA exposures estimated from ambient UVA measurements
Michael G. Kimlin, Alfio V. Parisi and Nathan D. Downs
The methods presented in this paper allow for the estimation of human UVA exposure using measured UVA irradiance values. Using measured broadband UVA irradiances over the period of a year, it was estimated that for humans in an upright posture and not moving the head with respect to the body, the nose received 26.5% of the available ambient UVA radiation, whilst the shoulders and vertex of the head received 81% and 100% respectively of the available ambient UVA radiation. Measurement of the exposure ratios for a series of solar zenith angles between 90° and 0° will allow extension of this technique to other latitudes.
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