Questions and Answers About EMF Electric and Magnetic Fields Associated with the Use of Electrical Power.
January 1995.

Your EMF Environment

Q. How does the magnetic field throughout my home compare with that of other homes?

A. As a source of comparison with the magnetic field throughout your home, see the figure below.

This chart summarizes data from a study by the Electric Power Research Institute (EPRI) in which spot measurements of magnetic fields were made in the center of rooms in 992 homes throughout the United States. Half of the homes studied had magnetic field measurements of 0.6 mG or less, when the average of measurements from the rooms in the home was calculated (the all-room mean magnetic field). The all-room mean magnetic field of all homes studied was 0.9 mG. The measurements were made away from electrical appliances and primarily reflect the fields from outside power lines, and electrical grounding sources.