ELF magnetic fields in a city environment

Citation
M. Lindgren et al., ELF magnetic fields in a city environment, BIOELECTROM, 22(2), 2001, pp. 87-90
Citations number
10
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Experimental Biology
Journal title
BIOELECTROMAGNETICS
ISSN journal
0197-8462 → ACNP
Volume
22
Issue
2
Year of publication
2001
Pages
87 - 90
Database
ISI
SICI code
0197-8462(200102)22:2<87:EMFIAC>2.0.ZU;2-6
Abstract
Some epidemiological studies indicate an association between extremely low frequency electromagnetic field (ELF-EMF) exposure and cancer risks. These studies have mainly taken residential and occupational exposure into consid eration. Outdoor environments are often considered as low level areas, but in this paper we show that this is not true in a city environment. We have mapped the ELF magnetic flux densities along certain stretches of sidewalk in central Goteborg City, Sweden. About 50% of the investigated street leng th shows flux densities of the same order of magnitude (0.2 muT and above) as those associated with increased risks of cancer in epidemiological studi es. We conclude that the outdoor exposures in a city environment also shoul d be considered in exposure assessments and risk evaluations. These elevate d flux densities are probably due to stray currents. We also found strong m agnetic flux densities (> 1.0 muT) close to ordinary distribution pillars, power substations. shoplifting alarms, and other electrical devices. Bioele ctromagnetics 22:87-90. 2001. (C) 2001 Wiley-Liss, Inc.