この研究は、15人の男性のばく露ボランティア被験者（1-20年間、職場および自宅で50Hz磁界に慢性的に毎日ばく露した人：1週間のばく露の幾何平均値は0.1～2.6 μT。）の免疫系及び血液学的パラメータを15人の男性の非ばく露ボランティア（年齢をマッチ。ばく露群と同様の身体的活動度。磁界ばく露は0.004～0.092 μT。）のものと比較した。検査項目は、赤血球・ヘモグロビン・ヘマトクリット・血小板・平均血小板容積・総白血球・リンパ球・単球・好酸球・好塩基球・好中球・Ig (免疫グロブリン) A, IgM, IgG, CD (分化抗原群) 3, CD4, CD8, ナチュラルキラー細胞・B細胞・total CD28・CD8+・ CD28+・活性化T細胞・IL（インターロイキン）-2・IL-6・IL-2レセプタで、20時から翌朝8時まで1時間毎に採血した。その結果、ばく露ボランティア群の免疫系及び血液学的パラメータのレベルおよびパターンには非ばく露群と何も違いがなかった、と報告している。
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To study the effects of an exposure to electromagnetic fields in workers chronically exposed to electromagnetic fields both at work and at home (between 1 and 20 years duration) on immunological-hematological parameters (q.v. Touitou et al. 2012).
The exposed volunteers (n=15) worked in substations and their main tasks included installing couplings between extra high voltage lines and voltage transformers. Moreover, the exposed subjects lived near the substations.
None of the controls had a professional position that could have resulted in occupational exposure to magnetic fields. They were subjected only to the normal electromagnetic fields of our daily environment.
All subjects were synchronized with daytime activity from 7:00 h to 23:00 h and nocturnal rest.
Blood samples were taken hourly from 20.00 h -8:00 h.
|ばく露時間||continuous for up to 20 years (10 workers: 7-20 years; 5 workers: 1-4 years)|
|Additional information||extra high voltage substations (occupational) and power lines (residential exposure) of a 225 kV and 400 kV electricity transmission network|
The data showed that a long-term chronic exposure to 50 Hz magnetic fields did not affect the hematological and immune system functions or their profiles in healthy men, at least for the variables studied. Thus, the data suggest that magnetic fields have no cumulative effects on these functions.