Abstract
As a contribution to the general knowledge on exposure to static and low frequency magnetic fields in Norwegian power intensive industry, a survey covering 12 such industry plants has been carried out. Magnetic fields have been measured and mapped out in the proximity to the central production units, alloy furnaces using 50-Hz alternating current and electrolysis halls using direct current. The intention behind the survey was partly to evaluate the exposure with reference to existing proposals to guidelines, partly to supply two on-going epidemiological investigations on cancer incidences and death causes in this kind of industry with exposure data, and partly to provide a basis for evaluation of present day exposure in context to future health investigations, particularly with reference to possible long-time effects and delayed health impairments. The measurements show that production employees at the alloy plants may regularly be exposed to 50-Hz magnetic fields over 1000 {mu}T for shorter periods of time (minutes) and up to about 500 {mu}T during fractions of an hour. Magnetic fields of 100 {mu}T are not uncommon in permanent working stations. Workers in electrolysis plants are regularly exposed to static magnetic fields of 3 to 10 mT, and up to about 50 mT
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Citation Formats
Thommesen, G, and Bjoelseth, P S.
Static and low frequency magnetic fields in Norwegian alloy and electrolysis plants; Statiske og lavfrekvente magnetfelt i norske smelte- og elektrolyseverk.
Norway: N. p.,
1992.
Web.
Thommesen, G, & Bjoelseth, P S.
Static and low frequency magnetic fields in Norwegian alloy and electrolysis plants; Statiske og lavfrekvente magnetfelt i norske smelte- og elektrolyseverk.
Norway.
Thommesen, G, and Bjoelseth, P S.
1992.
"Static and low frequency magnetic fields in Norwegian alloy and electrolysis plants; Statiske og lavfrekvente magnetfelt i norske smelte- og elektrolyseverk."
Norway.
@misc{etde_10127752,
title = {Static and low frequency magnetic fields in Norwegian alloy and electrolysis plants; Statiske og lavfrekvente magnetfelt i norske smelte- og elektrolyseverk}
author = {Thommesen, G, and Bjoelseth, P S}
abstractNote = {As a contribution to the general knowledge on exposure to static and low frequency magnetic fields in Norwegian power intensive industry, a survey covering 12 such industry plants has been carried out. Magnetic fields have been measured and mapped out in the proximity to the central production units, alloy furnaces using 50-Hz alternating current and electrolysis halls using direct current. The intention behind the survey was partly to evaluate the exposure with reference to existing proposals to guidelines, partly to supply two on-going epidemiological investigations on cancer incidences and death causes in this kind of industry with exposure data, and partly to provide a basis for evaluation of present day exposure in context to future health investigations, particularly with reference to possible long-time effects and delayed health impairments. The measurements show that production employees at the alloy plants may regularly be exposed to 50-Hz magnetic fields over 1000 {mu}T for shorter periods of time (minutes) and up to about 500 {mu}T during fractions of an hour. Magnetic fields of 100 {mu}T are not uncommon in permanent working stations. Workers in electrolysis plants are regularly exposed to static magnetic fields of 3 to 10 mT, and up to about 50 mT for shorter periods. 15 refs., 11 figs., 3 tabs.}
place = {Norway}
year = {1992}
month = {Oct}
}
title = {Static and low frequency magnetic fields in Norwegian alloy and electrolysis plants; Statiske og lavfrekvente magnetfelt i norske smelte- og elektrolyseverk}
author = {Thommesen, G, and Bjoelseth, P S}
abstractNote = {As a contribution to the general knowledge on exposure to static and low frequency magnetic fields in Norwegian power intensive industry, a survey covering 12 such industry plants has been carried out. Magnetic fields have been measured and mapped out in the proximity to the central production units, alloy furnaces using 50-Hz alternating current and electrolysis halls using direct current. The intention behind the survey was partly to evaluate the exposure with reference to existing proposals to guidelines, partly to supply two on-going epidemiological investigations on cancer incidences and death causes in this kind of industry with exposure data, and partly to provide a basis for evaluation of present day exposure in context to future health investigations, particularly with reference to possible long-time effects and delayed health impairments. The measurements show that production employees at the alloy plants may regularly be exposed to 50-Hz magnetic fields over 1000 {mu}T for shorter periods of time (minutes) and up to about 500 {mu}T during fractions of an hour. Magnetic fields of 100 {mu}T are not uncommon in permanent working stations. Workers in electrolysis plants are regularly exposed to static magnetic fields of 3 to 10 mT, and up to about 50 mT for shorter periods. 15 refs., 11 figs., 3 tabs.}
place = {Norway}
year = {1992}
month = {Oct}
}