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Radiat Prot Dosimetry. 2008;131(4):469-73. doi: 10.1093/rpd/ncn199. Epub 2008 Jul 30.

Exposure to 50 Hz magnetic field in apartment buildings with built-in transformer stations in Hungary.

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Fréderic Joliot-Curie National Research Institute for Radiobiology and Radiohygiene, H-1221 Budapest Anna u.5, Hungary.


Exposure to 50 Hz magnetic field (MF) was evaluated in 31 multi-level apartment buildings with built-in step-down transformer stations. In each building, three apartments were selected: one apartment located immediately above the transformer room (index apartment), one located on the same floor and one on a higher floor. The mean value of measured MFs was 0.98 microT in apartments above transformers, 0.13 microT on the same floor, and 0.1 microT in on higher floors. The mean measured MF value was higher than 0.2 microT in 30 (97%) index apartments, 4 (14%) on the same floor as the index apartments and 4 (13%) on higher floors. The corresponding numbers were 25 (81%), 0 and 0, respectively, when 0.4 microT was used as cut-point. It is concluded that apartments in building with built-in transformers can be reliably classified into high and low-exposure categories based on their location in relation to transformers.

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