Measurement of personal radio frequency exposure in Japan: The Hokkaido Study on the Environment and Children's health
Measurement of personal radio frequency exposure in Japan: The Hokkaido Study on the Environment and Children's health
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日本个人射频暴露测量：北海道环境与儿童健康研究
DOI：
10.1016/j.envres.2022.114429
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发表时间：
2023
影响因子：
8.3
通讯作者：
Kishi Reiko
中科院分区：
文献类型：
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作者：
Yamazaki Keiko;Ikeda-Araki Atsuko;Miyashita Chihiro;Tamura Naomi;Yoshikawa Toshio;Hikage Takashi;Omiya Manabu;Mizuta Masahiro;Ikuyo Miwa;Tobita Kazuhiro;Onishi Teruo;Taki Masao;Watanabe Soichi;Kishi Reiko
儿童暴露于射频电磁场（RF-EMF）的机会正在增加。使用个人暴露测量仪（ExpoM-RF）记录了日本儿童暴露于RF-EMF的情况，并检查了与暴露相关的因素。共有101名10-15岁的儿童参加了前瞻性出生队列“北海道研究”。在700 MHz-5.8 GHz频率范围内记录3天的RF-EMF数据。记录的数据被总结为六组频带：从移动的电话基站（DL）的下行链路、从移动的电话到基站（UL）的上行链路、无线局域网（LAN）、地面数字电视广播（数字电视）、2.5 GHz和3.5 GHz时分双工（TDD）、1.9 GHz TDD和总（所有测量频带中的功率密度的总和）。调查问卷被用来记录互联网环境（在家里）和移动的电话的使用。日本儿童的个人RF-EMF暴露低于欧洲研究报告的暴露。来自移动的电话基站的DL信号是总暴露量的最重要贡献者，而无线LAN和数字电视仅在家中更高。城市住宅与四组频带（DL，UL，数字电视和TDD）的增加一致相关。TDD级别与移动的电话使用（使用移动的电话呼叫、视频观看、文本消息服务和在线游戏）有几个关联。还注意到优势和困难问卷（SDQ）的注意力不集中/多动子量表与夜间较高的无线LAN暴露之间的关联。进一步的研究与额外的数据将揭示在日本儿童的RF-EMF暴露所涉及的因素。
The opportunities for exposure to radiofrequency electromagnetic fields (RF-EMF) among children are increasing. Children's exposure to RF-EMF in Japan was recorded using a personal exposure meter (ExpoM-RF), and factors associated with the exposure examined. A total of 101 children, aged 10–15 years old, participated in the prospective birth cohort “Hokkaido study”. RF-EMF data were recorded in the 700 MHz-5.8 GHz frequency range for 3 days. The recorded data were summarized into six groups of frequency bands: downlink from mobile phone base stations (DL), uplink from mobile phones to a base station (UL), Wireless Local Area Network (LAN), terrestrial digital TV broadcasting (digital TV), 2.5 GHz and 3.5 GHz Time Division Duplex (TDD), 1.9 GHz TDD, and total (the summation of power density in all measured frequency bands). A questionnaire was used to document the internet environment (at home) and mobile phone usage. Personal RF-EMF exposure in Japanese children was lower than that reported in studies in Europe. The DL signals from mobile phone base stations were the most significant contributors to total exposure, while Wireless LAN and digital TV were only higher at home. The urban residence was consistently associated with increases in the four groups of frequency bands (DL, UL, digital TV, and TDD). TDD level has several associations with mobile phone usage (calls using mobile phones, video viewing, text message service, and online game). The association between inattention/hyperactivity subscale of the Strengths and Difficulties Questionnaire (SDQ) and higher Wireless LAN exposure at nighttime was also noted. Further studies with additional data will shed light on factors involved in RF-EMF exposure among Japanese children.