One of the traders employed by a trading company in downtown Toronto was pregnant and had expressed concerns about the number and location of computer monitors at and around her work station. A reorganization of the trading area had resulted in banks of ten to twelve monitors being situated back to back. Where formerly each trader would have only faced a single bank - his/her own, each now faces, in effect, a double bank - his/her own plus the backs of those of a co-worker. This was perceived as substantially increasing and possibly doubling any adverse exposure to emissions from the monitors that might be occurring.
Both 60 Hz and VLF magnetic field levels were measured in the trading area and found to be within the range typically observed in urban office and commercial environments. All the levels were far below exposure limits currently established or proposed by various international or national agencies or organizations.
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