01 Computer Monitor / Visual Display Unit Emissions
EM 02 Electricity
EM 03 Electricity
The way electricity is transported from power stations to sub-stations
near populations. This reduces the amount of energy lost in long-distance
EM 04 Electro-Magnetic
The field can be viewed as the combination of an electric field and
a magnetic field. The electric field is produced by stationary charges,
and the magnetic field by moving charges (currents); these two are
often described as the sources of the field. Any device connected
to an electrical outlet, even if the device is not switched on, will
have an associated electric field.
EM 05 Extremely
Low Frequency Radiation (ELF)
ELF fields are defined as those having frequencies up to 300 Hz. Emitted
by power lines, electrical wiring and common appliances (e.g. electric
blankets, televisions, hair-dryers, computers, etc.). Naturally occurring
ELF fields are associated with atmospheric processes such as ionospheric
currents, thunderstorms and lightning.
EM 06 Fluorescent
EM 07 Microwave 750 MHz
Used for telecommunications and heating food. Able to pass through
many things including human body.
EM 08 Mobile Phone
EM 09 Mobile Phone 1200 MHz
EM 10 Mobile Phone 1800 MHz
EM 11 Mobile Phone Mast G3
EM 12 Satellite Television Radio Waves (UK)
Radio waves, despite their name, are used for television transmissions.
EM 13 Tetra Mast
Terrestrial Trunked Radio (formerly known as Trans-European Trunked
Radio). TETRA was specifically designed for use by government agencies,
emergency services, (police forces, fire departments, ambulance) for
public safety networks, rail transportation staff for train radios,
transport services and the military. Used by countries in Western
Europe, Eastern Europe, Middle East, Africa, Asia Pacific, Caribbean
and Latin America.
EM 14 Television