この研究は、GSM（移動通信用グローバルシステム）基地局の954MHz放射アンテナからの電磁界ばく露を受けた全血試料をばく露後に培養し、染色体異常の分析を行った。また、この周波数および他の周波数のマイクロ波の職業的ばく露がある保守作業員から得られた限定的な数量の血液試料も調べた。その結果、血液試料がアンテナに非常に接近して置かれていた場合、インビトロでの細胞遺伝学的損傷がいくつか見られたが、データを総合して考察すると、GSM基地局から放射されるマイクロ波は一般人口集団に遺伝的異常を誘発することはできないと思われる、と報告している。
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The first part of this publication is an experimental in vitro study about the possible effects on human blood lymphocytes caused by 954 MHz irradiation. The second part is an observational in vivo study. In this pilot experiment blood samples obtained from maintenance workers, occupationallly exposed to microwaves of several frequencies, were investigated.
| ばく露 | パラメータ |
|---|---|
|
ばく露1:
954 MHz
Modulation type:
pulsed
ばく露時間:
continuous for 2 h
in vitro study
|
|
|
ばく露2:
450–900 MHz
Modulation type:
pulsed
ばく露時間:
repeated daily exposure for at least 1 h/day for at least 1 year
in vivo study
|
- |
| 周波数 | 954 MHz |
|---|---|
| タイプ |
|
| 特性 |
|
| ばく露時間 | continuous for 2 h |
| Additional information | in vitro study |
| Modulation type | pulsed |
|---|---|
| Additional information |
| ばく露の発生源／構造 |
|
|---|---|
| Distance between exposed object and exposure source | 5 cm |
| ばく露装置の詳細 | Heparinized blood samples (10 ml) were aliquoted over three test tubes. Aliquot A was placed 5 cm from the emitting antenna in a cooled box at 17 ± 1 °C. Aliquot B was placed in a metallic box but the conditions were same as for A. Aliquot C served as control and was kept in another room away from the antenna. |
| Additional information | Three aliquots were made from each 10-ml blood sample: exposed, sham-exposed, and outside control. |
| 周波数 | 450–900 MHz |
|---|---|
| タイプ |
|
| ばく露時間 | repeated daily exposure for at least 1 h/day for at least 1 year |
| Additional information | in vivo study |
| Additional information | and other frequencies |
| Modulation type | pulsed |
|---|
| ばく露の発生源／構造 |
|
|---|---|
| ばく露装置の詳細 | Investigation on a limited sample of six workers occupationally exposed. |
| Additional information | A control sample of six healthy men was selected for comparable age and life-style. |
No parameters are specified for this exposure.
In conclusion, the present investigation failed to demonstrate any important cytogenetic damage in in vivo exposed subjects. Some cytogenetic effects were observed in in vitro exposed blood samples but only very close to the antenna.
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