Sunlight is one of the main environmental resources that keeps all the organisms alive on earth. The ultraviolet (UV) radiation from the sun is essential for vitamin D synthesis in the human body, which is crucial for bone and muscle health. In addition, sun exposure also helps to reduce the risk of some cardiovascular diseases and cancers. However, excessive UV exposure can lead to adverse effects, including some eye diseases, premature aging, sunburn and skin cancers. The solar UV irradiance itself depends on many environmental factors. In fact, the UV index reported in weather forecasts is an estimation under cloudless conditions. Personal UV exposure also depends on one’s outdoor activities and habits. Furthermore, the UV intake depends on the skin sensitivity. Therefore, there is a need for research into monitoring the optimal daily UV exposure for health benefits, without developing potential health risks. To facilitate the monitoring of solar UV intensity and cumulative dose, a variety of UV sensors have been developed in the past few decades and many are commercially available. Examples of sensors being marketed are: portable UV dosimeter, wearable UV radiometer, personal UV monitor, and handheld Solarmeter®. Some of the UV sensors can be worn as personal health monitors, which promote solar exposure protection. The paper provides a comprehensive review of the wearable and portable UV sensors for monitoring personal UV exposure, including a discussion of their unique advantages and limitations. Proposals are also presented for possible future research into reliable and practical UV sensors for personal UV exposure monitoring.

阳光是地球上所有生物赖以生存的主要环境资源之一。来自太阳的紫外线 (UV) 辐射对于人体合成维生素 D 至关重要，而维生素 D 对骨骼和肌肉健康至关重要。此外，晒太阳还有助于降低某些心血管疾病和癌症的风险。然而，过度暴露于紫外线会导致不利影响，包括一些眼部疾病、过早衰老、晒伤和皮肤癌。太阳紫外线辐照度本身取决于许多环境因素。事实上，天气预报中报告的紫外线指数是在无云条件下的估计值。个人紫外线照射还取决于一个人的户外活动和习惯。此外，紫外线的摄入量取决于皮肤的敏感性。所以，需要研究监测最佳的每日紫外线照射对健康有益，同时不会产生潜在的健康风险。为了便于监测太阳紫外线强度和累积剂量，在过去的几十年中开发了多种紫外线传感器，其中许多已在市场上销售。已上市的传感器示例包括：便携式紫外线剂量计、可穿戴紫外线辐射计、个人紫外线监测器和手持式 Solarmeter®。一些紫外线传感器可以作为个人健康监测器佩戴，以促进日晒保护。该论文全面回顾了用于监测个人紫外线照射的可穿戴和便携式紫外线传感器，包括对其独特优势和局限性的讨论。