Exposure assessment of ELF magnetic fields in urban environments in Extremadura


Exposure assessment of ELF magnetic fields in urban environments in Extremadura (Spain).

Paniagua JM, Jimenez A, Rufo M, Antolin A.

Departamento de Fisica, Escuela Politecnica, Universidad de Extremadura, Caceres, Spain. paniagua@unex.es

We present the results of a study of the extremely low frequency (ELF) magnetic fields in urban environments of the Extremadura region (Spain). The study included a spectral analysis, an analysis of the temporal variation, and spot measurements in the streets of four cities. The spectral analysis showed that the main source of magnetic field exposure was that corresponding to the principal power frequency (50 Hz) and its third harmonic. The magnetic flux density measured at one point over 24 h presented rapid fluctuations in short time periods. Smoothing the time series eliminated these fluctuations, showing a temporal evolution associated with the differing levels of power consumption over the course of the day. The values of the spot measurements taken in the streets were all below the ICNIRP reference level, although 30% surpassed 0.2 microT, the value that some epidemiological studies take as the threshold above which there exist risks of effects that could be harmful to health. The values found for the magnetic flux density in these urban settings were generally greater than values reported in the literature for residential areas, and similar to, although in some cases less than those in workplace environments.

Copyright 2003 Wiley-Liss, Inc.

Publication Types: Evaluation Studies

Informant: Avoiding Ridicule


Assessment of ELF fields in urban environments in Spain


User Status

Du bist nicht angemeldet.




Juli 2005

Aktuelle Beitr├Ąge

Cardiac Effects of Natural...
http://groups.google.com/g roup/mobilfunk_newsletter/ t/54583fad05bdd0f6 http:/ /www.buergerwelle.de:8080/ helma/twoday/bwnews/storie s/7958/ http://omega.tw oday.net/search?q=electrom agnetic+fields http://omeg a.twoday.net/search?q=carc inog http://omega.twoday.n et/search?q=cardiac http:/ /omega.twoday.net/search?q =melatonin...
Starmail - 25. Apr, 08:19
Facts and Fiction about...
http://groups.google.com/g roup/mobilfunk_newsletter/ t/beee27b8e97546a5 http ://omega.twoday.net/search ?q=melanoma http://omega.t woday.net/search?q=Hallber g http://omega.twoday.net/ search?q=Johansson http:// omega.twoday.net/search?q= Philippe+Hug
Starmail - 15. Mrz, 17:12
Wird die Knesset mit...
http://www.next-up.org/pdf /Wird_die_Knesset_mit_Mikr owellen_verstrahlt_19_11_2 009.pdf http://omega.tw oday.net/search?q=cluster http://omega.twoday.net/se arch?q=Mikrowellen
Starmail - 15. Mrz, 17:08
Implant "chip-a-thon"...
http://www.katherinealbrec ht.com/blog/implant-chip-a -thon-as-fundraiser-agains t-cancer/...
Starmail - 15. Mrz, 17:06
Das Bundesamt für...
https://www.gigaherz.ch/da s-bundesamt-fuer-umwelt-ge steht/ http://omega.two day.net/search?q=BioInitia tive http://omega.twoday.n et/search?q=Cindy+Sage htt p://omega.twoday.net/searc h?q=BAFU http://omega.twod ay.net/search?q=ICNIRP
Starmail - 19. Dez, 16:07


Online seit 4897 Tagen
Zuletzt aktualisiert: 25. Apr, 08:19


vi knallgrau GmbH

powered by Antville powered by Helma

twoday.net AGB