Exposure to ultraviolet (UV) radiation from sunlight induces the production of essential vitamin D, whereas overexposure to sunlight leads to skin cancer. Sunlight exposure has been measured using questionnaires, dosimeters, and vitamin D levels. Several studies have measured vitamin D in the working population; however, these studies were limited to certain occupations such as farmers and construction workers. In the present study, we evaluated sunlight exposure using blood vitamin D as an exposure surrogate across industries and occupations.

中文翻译：

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使用血液维生素 D 作为生物标志物评估跨行业和职业的阳光照射

暴露于阳光中的紫外线 (UV) 辐射可诱导必需维生素 D 的产生，而过度暴露于阳光下会导致皮肤癌。已使用问卷调查、剂量计和维生素 D 水平测量阳光照射。几项研究测量了工作人群的维生素 D；然而，这些研究仅限于某些职业，例如农民和建筑工人。在本研究中，我们使用血液维生素 D 作为跨行业和职业的暴露替代物来评估日光暴露。