この研究は、100μT、50Hzの超低周波電磁界(ELF EMF)のばく露(20時間/日、ばく露期間3ヵ月)が、ラットの健康全般に及ぼす影響を調べた。ラット(n=128)は、ELF EMFばく露群と擬似ばく露群に2分され、3ヵ月間、体重(2週間ごと)、食餌および水の摂取量(1週間ごと)を測定した。また、血液像パラメータを実験開始前と終了後に、血液化学パラメータを4週間ごとに分析した。その結果、ELF EMFばく露群の身体状況全般に影響は見られなかった;血液像および血液化学パラメータにも影響は見られなかった、と報告している。
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The effect of exposure of rats to a 50 Hz magnetic field on hematologic parameters and the function of liver and kidneys should be investigated.
Rats were divided into two groups (n=64 each): 1) exposure and 2) sham exposure.
ばく露 | パラメータ |
---|---|
ばく露1:
50 Hz
ばく露時間:
continuous for 20 h/day for 3 months
|
|
周波数 | 50 Hz |
---|---|
タイプ |
|
ばく露時間 | continuous for 20 h/day for 3 months |
ばく露の発生源/構造 | |
---|---|
チャンバの詳細 | plastic cages of 45 x 20 x 35 cm (L x W x H) |
ばく露装置の詳細 | exposure device was a rack made of plastics (1 x 2 x 2 m (L x W x H) with five floors made of bronze wires to produce magnetic field; the top and bottom floors were made of 400 turns and the internal floors were made of 200 turns of wire; inside the device, a four-floor shelf was placed, which was also made with plastic in the center, and the height of every floor was the same as that of the device (?); two un-restrained rats per cage |
Sham exposure | A sham exposure was conducted. |
測定量 | 値 | 種別 | Method | Mass | 備考 |
---|---|---|---|---|---|
磁束密度 | 100 µT | - | 測定値 | - | - |
No significant differences were found between the exposure group (group 1) and the sham exposure group (group 2).
The authors conclude that exposure of rats to a 50 Hz magnetic field has no effect on the investigated hematologic parameters or the function of liver and kidneys.
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