Measurement of personal radio frequency exposure in Japan : the Hokkaido study on the environment and children's health

Yamazaki, Keiko; Ikeda-Araki, Atsuko; Miyashita, Chihiro; Tamura, Naomi; Yoshikawa, Toshio; Hikage, Takashi; Omiya, Manabu; Mizuta, Masahiro; Miwa, Ikuyo; Tobita, Kazuhiro; Onishi, Teruo; Taki, Masao; Watanabe, Soichi; Kishi, Reiko

Measurement of personal radio frequency exposure in Japan : the Hokkaido study on the environment and children's health

Yamazaki, Keiko; Ikeda-Araki, Atsuko; Miyashita, Chihiro et al.

Environmental research, 2023, 216(Part 1), 114429

Permalink : https://hdl.handle.net/2115/94187

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アクセス権	open access
URI	https://hdl.handle.net/2115/94187
タイトル	Measurement of personal radio frequency exposure in Japan : the Hokkaido study on the environment and children's health
著者	Yamazaki, Keiko ; Ikeda-Araki, Atsuko ; Miyashita, Chihiro ; Tamura, Naomi ; Yoshikawa, Toshio ; Hikage, Takashi ; Omiya, Manabu ; Mizuta, Masahiro ; Miwa, Ikuyo ; Tobita, Kazuhiro ; Onishi, Teruo ; Taki, Masao ; Watanabe, Soichi ; Kishi, Reiko
e-Rad_Researcher 60732120 著者名 Yamazaki, Keiko
著者名 Ikeda-Araki, Atsuko
e-Rad_Researcher 70632389 著者名 Miyashita, Chihiro
e-Rad_Researcher 80836164 著者名 Tamura, Naomi
著者名 Yoshikawa, Toshio
著者名 Hikage, Takashi
著者名 Omiya, Manabu
著者名 Mizuta, Masahiro
著者名 Miwa, Ikuyo
著者名 Tobita, Kazuhiro
著者名 Onishi, Teruo
著者名 Taki, Masao
著者名 Watanabe, Soichi
e-Rad_Researcher 80112449 著者名 Kishi, Reiko
言語	英語
キーワード	RF electromagnetic Field
	Exposimeter
	Children
	Internet environment
	Mobile phone usage
	Epidemiology
発行日	2023-01-01
出版者	Elsevier
収録物名	Environmental research
巻(号)	216(Part 1)
ページ	114429
抄録	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.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
権利情報	© 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
PISSN	0013-9351
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.envres.2022.114429