UV protection effect for human body parts by UV protection items

Abstract

Excessive irradiation of UV rays increases health risks. The objective of this research is to clarify the UV protection rate for human body parts as well as a whole body of combination of clothing, hat, arm-cover, parasol by experiment with two manikins. The manikin with 24 UV sensors were used for measurement. The following findings were obtained. The combination of one-piece dress, arm-cover, and parasol had the highest UV protection rate for the whole body with 60.3% at 14:00. The hat and arm-cover completely prevented the body parts covered by them from UV rays, but the effect was limited to local. In contrast, the UV protection effect of the parasol spread widely not only on the head but also on the shoulder and chest. As the sun altitude decreased, the UV protection rate of the parasol and the hat against the face as well as the whole body decreased.