高速電車内での電磁界への曝露

Exposure to electromagnetic fields aboard high-speed electric multiple unit trains.

• D Niu
• F Zhu
• R Qiu
• Q Niu

抄録

高速電車は、走行時に高周波電界、低周波磁界、高周波広帯域の電磁波を発生させます。この電磁妨害は、主に窓から車内に侵入し、そこから乗客や駅員に伝達されるため、人体への健康影響が懸念されています。電磁界放射を支配する透過量や振幅分布特性を調べ、人への電磁界放射の曝露レベルを測定する必要がある。私たちは、複数の高速鉄道路線において、車内電磁界分布の一連の試験を実施しました。その結果、許容範囲内であることが確認されたが、長期的な健康影響の可能性を検討する必要がある。

High-speed electric multiple unit (EMU) trains generate high-frequency electric fields, low-frequency magnetic fields, and high-frequency wideband electromagnetic emissions when running. Potential human health concerns arise because the electromagnetic disturbances are transmitted mainly into the car body from windows, and from there to passengers and train staff. The transmission amount and amplitude distribution characteristics that dominate electromagnetic field emission need to be studied, and the exposure level of electromagnetic field emission to humans should be measured. We conducted a series of tests of the on board electromagnetic field distribution on several high-speed railway lines. While results showed that exposure was within permitted levels, the possibility of long-term health effects should be investigated.