EPRI EMF Exposure Database: SCE Utility Worker Data Set

This abstract describes the final report (EPRI TR-107060) for this data set.

Last updated: September 5, 1997

Prepared by:

T. Dan Bracken, Inc.
5415 S.E. Milwaukie Avenue, Suite 4
Portland, Oregon, 97202, USA


This document describes the SCE Utility Workers data set containing the measurement data collected during a cohort and case-control study of cancer among workers of the Southern California Edison Company (SCE). The project was sponsored by SCE. The data were supplied to the EPRI EMF Exposure Database by the original researchers at SCE. The project was performed in two phases: in 1991 data were collected on a workday basis; during 1992 and 1993 bar code readers were used by the volunteers to record activity information during the work day, allowing more detailed analyses. The five data products in the SCE Utility Workers Data Set contain the magnetic field personal exposure measurements collected during the study and summaries of those measurements along with associated descriptive information. The five exposure measurement data products are: the binary and ASCII time-series files of individual measurements and three summary files with records for each individual activity period, each consolidated activity within a session and each full session. The time-series files represent nearly 42 million individual magnetic field measurements. A record in a summary file contains a collection of calculated values for the measurements being summarized and categorical variables describing the worker and activity (if applicable). The documentation contains a project synopsis, full descriptions of all data elements, and the format and size of each data product. Published articles and other references are cited as sources of detailed information about study design, protocols, and results.

Note: Distribution of the EPRI data sets is limited. For additional information, contact EPRI Project Manager, Randall Takemoto-Hambleton.