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Development of historical exposure estimates of cosmic radiation and circadian rhythm disruption for cohort studies of Pan Am flight attendants.

Authors

Waters-MA; Grajewski-B; Pinkerton-LE; Hein-MJ; Zivkovich-Z

Source

Am J Ind Med 2009 Oct; 52(12):751-761

Link

http://dx.doi.org/10.1002/ajim.20738 

NIOSHTIC No.

20035890 

Abstract

Background: The National Institute for Occupational Safety and Health is conducting cohort studies of flight crew employed by the former Pan American World Airways company (Pan Am) as part of an effort to examine flight crew workplace exposures and health effects. Flight crew are exposed to elevated levels of cosmic radiation and to disruption of circadian rhythm when flying across multiple time zones. Methods exist to calculate cosmic radiation effective doses on individual flights; however, only work histories which provided an employee’s domicile (home base) history rather than a record of every flight flown were available. Methods/Results: We developed a method for estimating individual cumulative domicilebased cosmic radiation effective doses and two metrics for circadian rhythm disruption for each flight attendant: cumulative times zones crossed and cumulative travel time during the standard sleep interval. Conclusions: The domicile-exposure matrix developed was used to calculate exposure estimates for a cohort mortality study of former Pan Amflight attendants.

Keywords

Aircrews; Circadian-rhythms; Exposure-assessment; Exposure-methods; Flight-personnel; Health-hazards; Health-surveys; Occupational-health; Occupational-safety-programs; Qualitative-analysis; Radiation-effects; Radiation-exposure; Shift-workers; Sleep-deprivation; Time-weighted-average-exposure; Work-analysis; Work-environment; Worker-health; Workplace-studies; Work-practices; Author Keywords: cosmic radiation; flight attendants; exposure assessment; aircraft; flight crew; retrospective

Contact

Barbara Grajewski, CDC, National Institute for Occupational Safety and Health (NIOSH), 4676 Columbia Pkwy (R-15), Cincinnati, OH 45226

CODEN

AJIMD8

Publication Date

20091001

Document Type

Journal Article

Email Address

bag2@cdc.gov

Fiscal Year

2010

NTIS Accession No.

NTIS Price

Issue of Publication

12

ISSN

0271-3586

NIOSH Division

DSHEFS; DART

Priority Area

Transportation, Warehousing and Utilities; Manufacturing

Source Name

American Journal of Industrial Medicine

State

OH