DATASET-DESCRIPTION
Personal 24 Hour Emdex Pilot Project
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DATASET-STATUS
Project completed by Lynne Gillette, while working at the
U.S. EPA, no resrictions on it's use
DATASET-ABSTRACT
This project involved twenty volunteers who wore EMDEX C meters
for 24 hours (including a typical work/school day) and logged
information about their activities and possible sources of
magnetic fields they encountered. Most of the subjects (18)
were federal office workers, one was a middle school student,
another was a horse stable operator. Magnetic fields in the ELF
range were collected at 10 second intervals.
TIME-PERIOD
Data were collected during the period March to June 1992.
GEOGRAPHIC-LOCATION
Data were collected in the Washington DC metropolitan area, in
the US.
GENERAL-LOCATION
At the volunteer's work or school, and various sites away from
work or school incuding residences, vehicles, retail stores,
medical offices, horse pastures and other locations.
DATASET-PURPOSE
MEASUREMENT-DESIGN
SAMPLE-SELECTION
Volunteers were recruited from among the researchers coworkers
and friends. This was in no way intended to be a random
sample. Only one coworker who was asked to participate
declined.
SAMPLE-SIZE
20 volunteers, each collecting one 24-hour session
MEASURED-PARAMETER
Resultant magnitude of contemporaneous three-axis magnetic
field measurements.
METHODOLOGY
Work and nonwork exposures recorded using personal exposure
data logger worn in a pouch at the waist. Activities were
noted on a log sheet by the subject.
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SAMPLING-INTERVAL
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INSTRUMENTATION
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