Human UVA exposures estimated from ambient UVA measurements

Photochem Photobiol Sci. 2003 Apr;2(4):365-9. doi: 10.1039/b207953d.


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 degrees and 0 degrees will allow extension of this technique to other latitudes.

MeSH terms

  • Calibration
  • Face / radiation effects
  • Humans
  • Radiation Dosage*
  • Ultraviolet Rays*