Electromagnetic fields (EMFs) occur around anything that produces, transmits, or uses electricity. They are associated with the earth’s core and solar energy, but they are also emitted by many manufactured or household products that use electricity.

Every day, we’re exposed to Electromagnetic fields (EMFs) at extremely low frequencies. 

What’s the difference between an electric field and a magnetic field.

As the name implies, EMFs are the combination of electric fields and magnetic fields.

An electric field happens whenever you plug in a lamp, computer, or other appliance into an outlet. When you turn on that device, the flow of the electrical current, known as an alternating current (AC) forms a magnetic field.

What qualifies as extremely low frequency?

According to Health Canada, extremely low frequencies are between 1 hertz (Hz) and 3 kilohertz (kHz). 

The frequency for electricity distributed by power lines to our homes and businesses is 60 Hz and considered extremely low frequency.

What about EMFs and electric network equipment?

EMFs are strongest at their source or closer to equipment or directly below a high-voltage line, however even in these situations, EMF exposure is considered extremely low.  

When you increase the distance between yourself and the equipment, your exposure to EMFs decreases quickly. 

Should I be concerned about EMFs?

The World Health Organization has not found any conclusive evidence showing that low level long-term exposure to EMFs from power lines is harmful.

Health Canada acknowledges that some people have concerns about EMFs, however scientific evidence doesn’t support claims that low-frequency EMFs are harmful. 

What is ENMAX doing?

ENMAX is committed to staying informed about any changes to research or guidelines related to EMFs, and to supporting an ongoing dialogue with our customers and the public.

For further information, or to schedule an in-home magnetic field measurement, reach out to our team.