An overhead power line running close to commercial buildings

An existing overhead transmission line (120–315 kV) runs close to commercial buildings in a shopping center in Ontario, Canada. The center of the power line is located approximately 100 feet (30 meters) from the buildings. Measurements taken near the structures indicated a potential for exceeding recommended levels based on guidelines in other countries. In other countries at similar distances, values have been recorded that exceed limits set by strict regulations for commercial buildings.
In cases like this, activity usually occurs during daytime hours and less at night. Therefore, radiation measurements for such sites are typically performed during the day or even over several days to check for changes in power consumption. This type of test is called continuous radiation monitoring. It can be carried out for a period of one day, one week, or one month, and it is also possible to install a permanent radiation monitoring unit.