AC Magnetic Fields: Living spaces contain dozens of electronic devices and electrical appliances. When this equipment is active or turned on, a flow of electrical current begins. This flow of electricity through the equipment and wiring is responsible for creating AC Magnetic Fields (B-Fields). The intensity or strength of the magnetic field is directly related to the power consumption of the device. A more powerful device will produce a higher magnetic field. These fields usually remain close to their source (2-3 feet) but can travel several hundred feet; an example is in the case of high voltage power lines.
AC Magnetic Fields are considered low frequency electromagnetic radiation. (5 Hz – 400,000 Hz). They can be measured with a tesla meter in nanoTesla (nT) or with a gauss meter in milliGauss mG. AC Magnetic Fields are present when there is electrical current running through a wire, metal, an appliance or the ground. Common sources include power lines, transformers, AC units, home appliances, home wiring, wiring errors (i.e. Neutral to Neutral, Neutral to Ground), electrical current running on metal water pipes, gas pipes or the home’s grounding system. Less than 1mG is ideal, more than 3mG is strong concern.
AC Electric Fields created by a voltage within 60 Hz (50 Hz in Europe). (E-Fields) are produced by the presence of electricity. Their strength is determined by voltage; the higher the voltage, the stronger the field. AC Electric Fields are generated by live electrical wires and generally travel 6-8 feet from the source, but in some cases further. An electric field will exist even when a device is not in use (turned off). In other words, these sources produce a continual emission. AC Electric Fields have a natural attraction to ground and the human body. They are considered low frequency electromagnetic radiation. (5 Hz –400,000 Hz). AC Electric or Dirty Electricity are caused by: faulty wiring, appliances, smart TV's, computers, routers, printers, chargers, dimmers, unshielded electrical wiring, plastic AC electrical cords, and other electrical devices. It is measured with a Graham Stetzer Meter. Less than 50 is ideal, 75 and over is strong concern.
Harmonics (commonly referred to as “dirty electricity” as well): These are frequencies other than the standard 50 Hz/60 Hz cycle generated by things like solar inverters, dimmer switches, fluorescent lighting, solar inverters, variable speed motors, new electronic systems with switch mode power supplies (SMPS), and other sources. These higher-frequency electrical fields conduct along the home’s wiring system and radiate into the living environment, causing a great deal of electromagnetic interference (EMI) in the home.
Radiofrequency "RF" Wave technology plays an integral part in our daily lives. As AC Electric fields and AC Magnetic fields approach higher frequencies, the fields become airborne and in this condition become Radio Waves. Microwaves are simply higher frequency radio waves. RF waves are used to convey information from one place to another through the air. They are used in mobile communication, radio and television broadcasts, radar, satellite navigation and are a significant part of what we recognize today as an international communication infrastructure. These high energy, airborne waves are capable of traveling miles. RF waves are considered high frequency electromagnetic radiation (10 MHz -300 GHz). Power density readings in microwatts per square meter are often used to express the magnitude of the signals. A spectrum analyzer is used to identify the specific frequency of a signal. Radiofrequency radiation is technically pulse-modulated microwave radiation. RF radiation is also emitted from Wi-Fi routers, microwave ovens, baby monitors, wireless enabled devices, gaming consoles, cell towers, Bluetooth devices, smart gadgets, cordless phones, cell phones, smart meters, alarm systems, and more. Wireless exposure is measured in: (uW/m2). Less than 100 microWatts per square meter is ideal during the day, Less than 10 microWatts per square meter is ideal during the night especially in sleeping areas.
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