Applied Physics Department, Faculty of Computer Science Engineering, University of Castilla-La Mancha, Avda. de España s/n, Campus Universitario, 02071 Albacete, Spain.
Medical Science Department, School of Medicine, University of Castilla-La Mancha, C/Almansa 14, 02071 Albacete, Spain.
Int J Environ Res Public Health. 2021 Feb 14;18(4):1857. doi: 10.3390/ijerph18041857.
In recent years, personal exposure to Radiofrequency Electromagnetic Fields (RF-EMF) has substantially increased, and most studies about RF-EMF with volunteers have been developed in Europe. To the best of our knowledge, this is the first study carried out in Mexico with personal exposimeters. The main objective was to measure personal exposure to RF-EMF from Wireless Fidelity or wireless Internet connection (Wi-Fi) frequency bands in Tamazunchale, San Luis Potosi, Mexico, to compare results with maximum levels permitted by international recommendations and to find if there are differences in the microenvironments subject to measurements. The study was conducted with 63 volunteers in different microenvironments: home, workplace, outside, schools, travel, and shopping. The mean minimum values registered were 146.5 μW/m in travel from the Wi-Fi 2G band and 116.8 μW/m at home from the Wi-Fi 5G band, and the maximum values registered were 499.7 μW/m and 264.9 μW/m at the workplace for the Wi-Fi 2G band and the Wi-Fi 5G band, respectively. In addition, by time period and type of day, minimum values were registered at nighttime, these values being 129.4 μW/m and 93.9 μW/m, and maximum values were registered in the daytime, these values being 303.1 μW/m and 168.3 μW/m for the Wi-Fi 2G and Wi-Fi 5G bands, respectively. In no case, values exceeded limits established by the International Commission on Non-Ionizing Radiation Protection (ICNIRP). Of the study participants ( = 63), a subgroup ( = 35) answered a survey on risk perception. According to these results, the Tamazunchale (Mexico) population is worried about this situation in comparison with several European cities; however, the risk perception changes when they are informed about the results for the study.
近年来，个人接触射频电磁场（RF-EMF）的情况大幅增加，且大多数针对志愿者的 RF-EMF 研究都是在欧洲开展的。据我们所知，这是在墨西哥使用个人暴露计进行的首次研究。主要目的是测量来自墨西哥圣路易斯波托西州塔马祖兰的无线保真或无线互联网连接（Wi-Fi）频段的个人 RF-EMF 暴露情况，将结果与国际建议允许的最大水平进行比较，并确定受测量影响的微环境是否存在差异。该研究共招募了 63 名志愿者，他们处于不同的微环境中：家庭、工作场所、户外、学校、旅行和购物。从 Wi-Fi 2G 频段旅行时记录的平均最小值为 146.5 μW/m，从 Wi-Fi 5G 频段家庭时记录的最小值为 116.8 μW/m，在工作场所时记录的最大值分别为 Wi-Fi 2G 频段 499.7 μW/m 和 Wi-Fi 5G 频段 264.9 μW/m。此外，按时间段和日期类型划分，夜间记录的最小值为 129.4 μW/m 和 93.9 μW/m，白天记录的最大值为 Wi-Fi 2G 频段 303.1 μW/m 和 Wi-Fi 5G 频段 168.3 μW/m。在任何情况下，值都未超过国际非电离辐射防护委员会（ICNIRP）规定的限值。在研究参与者中（n=63），一个亚组（n=35）回答了关于风险感知的调查。根据这些结果，与几个欧洲城市相比，塔马祖兰（墨西哥）的居民对这种情况感到担忧；然而，当他们了解到研究结果时，风险感知就会发生变化。
