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Indoor Air Quality Testing - Regina, Sk.
RMO Environmental Inspection Services
Indoor & Environmental Health Services
Regina, Sk. Canada Ph: 306-543-1833
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EPA -Environmental Protection Agency
EPA Protocol
EPA IAQ
Health Canada
Radon - IAQ
Its Your Health
NEHA
National Environmental
Health Association
NRPP
National Radon
Proficiency Program
WHO
IRP-International
Radon Project
WHO International EMF Project
IAQ Guidelines
Authorized Inspector
IAQ Standards, Guidelines and Protocols
EMF - Home, Workplace and Public Health
Electric and Magnetic (Electromagnetic) Fields (EMF),
and sometimes referred to as Electromagnetic Radiation (ER, EMR)
What Are EMFs?
EMF (or Electric and Magnetic Field) is a broad term which includes electric fields generated by charged particles, magnetic fields generated by charged particles in motion, and radiated fields generated by power lines and electrical devices such as TVs, cell phones, and microwaves, etc.
AC Power and time-varying fields:
Time-varying electric and magnetic fields are produced by AC or alternating currents. Alternating currents reverse their direction at regular intervals which then creates waves. For example, in Europe electricity changes direction with a frequency of 50 cycles per second or 50 Hertz. Equally, the associated electric and magnetic fields change orientation 50 times every second. North American electricity has a frequency of 60 Hertz.
DC Power, static and natural fields:
A static field does not vary over time. A DC
or direct current is an electric current flowing in one direction only. As it is
constant, or “static”, it does not make waves and therefore is “0 Hertz”. For example,
in DC battery powered appliances the current flows from the battery to the appliance
and then back to the battery creating a static EM field. Additionally, the earth's
magnetic field and fields around everyday magnets, are also static fields. These
are commonly referred to as “natural” EMFs, or ambient fields. Other examples of
“natural” EMFs are: lightning, and “static” electric discharge shocks. Static electricity
is often created from friction, like what a person may experience after walking across
carpeting.
EM fields are always strongest near the source and diminish as you move away from the source. These energies have the ability to influence particles at great distances. For example, the radiation from a radio tower influences the atoms within a distant radio antenna, allowing it to pick up the signal. Despite the many wonderful conveniences of electrical technology, the effects of EMF on biological tissue remains the most controversial aspect of the EMF issue with virtually all scientists agreeing that more research is necessary to determine safe or dangerous levels. Iron, for example, which is necessary for healthy blood and stored in the brain, is highly effected by EMF. The permeability of the cell membrane of our nerves, blood vessels, skin, and other organs, is effected by EMFs, and the intricate DNA of the chromosomes has been shown to be effected as well. In fact, throughout our bodies, every biochemical process involves precisely choreographed movement of EMF-sensitive atoms, molecules, and ions.
Understanding Radiation and EMFs
Non-Ionizing (EMFs) and Ionizing Radiation
Radiation is broken down into two basic types: non-ionizing and ionizing. On the electromagnetic (EM) spectrum (See: EM spectrum illustration), this break occurs between infrared and ultraviolet.
Non-ionizing radiation is relatively low-energy radiation that doesn't have enough energy to ionize (separate) atoms or molecules. It's located at the low end of the electromagnetic spectrum. Non-ionizing radiation sources include power lines, microwaves, radio waves, infrared radiation, visible light and lasers. Although considered less dangerous than ionizing radiation, overexposure to non-ionizing radiation can cause health issues.
Ionizing radiation is high-energy radiation that has enough energy to ionize (separate) atoms or molecules. Ionizing radiation comes in 4 main types: alpha particles, beta particles, gamma and X rays. Overexposure to ionizing radiation is considered dangerous.
