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Occup Environ Med 57:249-257 doi:10.1136/oem.57.4.249
  • Paper

Non-Hodgkin's lymphoma among electric utility workers in Ontario: the evaluation of alternate indices of exposure to 60 Hz electric and magnetic fields

Table 1

Exposure indices

Electric fields Magnetic fields
Arithmetic mean Arithmetic mean
Geometric mean Geometric mean
Field strength (SD) Field strength (SD)
Autocorrelation at 5 minute lags Autocorrelation at 5 minute lags
Mean transition in field strength Mean transition in field strength
Time (%) spent above: 5, 10, 20, 40, 156, 625, and 2500 V/m Time (%) spent above: 0.2, 0.8, 3.0, 12.5, and 50 μT

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