BCCDC carried out a study to measure the microwave levels from cellular/PCS phone base station transmitters. This data was then compared to Health Canada's Exposure Guideline, Safety Code 6.
To determine the levels of electromagnetic energy on the ground from base station antennae located on buildings and towers, measurements were made using the Geographically Located Observations of Base-station Emissions (GLOBE) from Health Canada.
The GLOBE device measures and records the total power density at a location from all frequency bands used by cellular/digital service providers. At the same time, it records its location using an onboard global positioning system (GPS). Health Canada prepared a report on the use of this device entitled Measurement of Cellular Base-station Emissions Using a Newly Developed RF Field Mapping System.
The total power densities coming from all base-stations and active cell phones in the area are measured and recorded. The power density readings are stored in a file along with the associated GPS coordinates and time of measurement.
It can be seen from the plots that the power density level drops off with distance away from the cellular tower or building with antennae. The highest recorded level of exposure for any of the locations surveyed was 3000 times lower than Safety Code 6's allowable exposure levels.
The 20 areas surveyed include: Abbottsford; Aldergrove; Burnaby; Coquitlam; Fort Langley; Harrison Hot Springs; Kamloops; Kelowna; Langley; Maple Ridge; Mission; New Westminster; North Vancouver; Richmond; Salt Spring Island; Surrey; Vancouver; Vernon; Victoria, and White Rock.
Click on any of the links below to view the GLOBE map of that area.
For a comparison, please see the results of GLOBE measurements for locations in the Ottawa, Ontario (archived) region made by Health Canada.