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HHE Determination Report No. HHE-79-105-1, ASARCO Mission Unit Mine, Sahuarita, Arizona.

Authors
Jankovic J
Source
Morgantown, WV: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, HHE-79-105-1, 1982 Feb; :1-5
Link
NIOSHTIC No.
00123223
Abstract
Heat stress among heavy equipment operators (SIC-3532) at near Sahuarita, Arizona was investigated by NIOSH in 1979. NIOSH investigators rode in the operator cabs of heavy equipment vehicles and measured wet bulb temperature (WBT) with a Botsball. Wet globe bulb temperature (WGBT) were calculated directly from WBT. over a 5 day period 524 measurements were taken in five types of vehicles. Relative humidity was below 50 percent and the ambient air temperature ranged from 27.8 to 42.8 degrees C. None of the measurements approached the WGBT threshold limiting value of 30 degrees C. Ninety percent of the measurements were below the NIOSH WGBT action level of 26 degrees C. NIOSH concluded that no heat stress hazard existed for the heavy equipment operators given the moderate conditions of relative humidity.
Keywords
NIOSH-Author; HHE-79-105-1; NIOSH-Health-Hazard-Evaluation; Hazards-Unconfirmed; Region-9; Health-surveys; Heat-stress; Heat-exposure
Publication Date
19820201
Document Type
Field Studies; Hazard Evaluation and Technical Assistance
Fiscal Year
1982
NTIS Accession No.
PB82-213257
NTIS Price
A01
Identifying No.
HHE-79-105-1
NIOSH Division
DRDS
SIC Code
3532;
Source Name
National Institute for Occupational Safety and Health
State
AZ; WV
Page last reviewed: April 12, 2019
Content source: National Institute for Occupational Safety and Health Education and Information Division