Assessment of exposure to magnetic fields in occupational settings.

摘要: Objective It is important to have data about occupational magnetic field intensity consider the contribution of exposure on human body. We conducted research fields and tried qualify distribution field' in certain general working environments with individual measurements. Subjects methods performed sample low-frequency workers occupations environment. also assessed relationship between environmental exposure. Results Some were found be exposed high fields. observed that some workspaces, such as transformer substation, generally had a uniform measurement but employees lower intensity. welders at 600 microT very short time geometrical value 0.08 microT. Conclusion The determination administrative levels control levels, not only weighted average threshold limits or term limits, ceiling should considered. More systematic necessary determine variables operating conditions, measuring position, frequency bands. Also, further studies will needed make job-exposure matrix for each occupation type combine it non-occupational settings commuting ordinary life situations explore causal disease.