Occupational Hygiene and Health Research Initiative (OHHRI), Faculty of Health Sciences, North-West University, Potchefstroom, South Africa.
Environmental and Health Research Unit, South African Medical Research Council (SAMRC), Pretoria, South Africa.
Photochem Photobiol. 2019 Jan;95(1):439-445. doi: 10.1111/php.13008. Epub 2018 Oct 7.
The exposure of outdoor car guards to solar ultraviolet radiation (UVR), the majority with deeply pigmented skin, to solar UVR was measured for five consecutive days during early spring (September 2017) in South Africa using electronic UVR dosimeters attached to the upper arm of each participant. The exposure of the nape of the neck, forehead, nose, cheek and hand was extrapolated from the measurements. The onsite ambient solar UVR on a flat, horizontal, unshaded surface was measured concurrently. The sun-related knowledge, behavior and attitudes of the car guards were evaluated using questionnaires. Total personal daily solar UVR exposure as a percentage of the ambient solar UVR exposure was 24%. The exposure of car guards on several body sites was in excess of the occupational threshold limit value. Sleeved shirts and hats were the most commonly used sun protection measures (worn by 70% and 80%, respectively). Considering the high levels of solar UVR reported on most days throughout the year in South Africa, more studies quantifying the personal exposure of outdoor workers in both the informal and formal sectors are necessary.
户外车管员长期暴露于太阳紫外线辐射（UVR）中，他们的皮肤大多颜色较深。2017 年 9 月早春期间，我们使用电子 UVR 剂量计连续五天测量了南非户外车管员的上臂 UVR 暴露情况，由此推断出他们的后颈、额头、鼻子、脸颊和手部的 UVR 暴露情况。同时，我们还测量了水平、无遮挡平面上的现场环境 UVR。我们使用问卷评估了车管员的与太阳相关的知识、行为和态度。车管员的个人日总 UVR 暴露量占环境 UVR 暴露量的 24%。多个身体部位的 UVR 暴露量超过了职业阈限值。有袖衬衫和帽子是最常用的防晒措施（分别有 70%和 80%的人使用）。考虑到南非一年中大部分时间的 UVR 水平都很高，有必要对非正式和正式部门的户外工作者的个人暴露情况进行更多的量化研究。
