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Walk-through survey report of potash facility Amax Chemical, Inc. Carlsbad, New Mexico.

Authors
Boeniger M
Source
Cincinnati, OH: U.S. Department of Health, Education, and Welfare, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, IWS 122-17, 1980 Mar; :1-6
Link
NIOSHTIC No.
00113358
Abstract
Worker exposure to diesel exhaust emissions was investigated at the Potash Facility (SIC-2819), Amax Chemical, Inc. in Carlsbad, New Mexico, on February 8, 1980. Amax employed 301 workers underground over three shifts, 7 days a week. Complete files on inactive workers were retained for epidemiological followup. Carbon-monoxide (630080) direct reading indicator tubes registered about 5 parts per million (ppm), carbon-dioxide (10102440) about 1600ppm, and nitrogen- dioxide (124389) about 2.5ppm. Off gases leaving the blast area through the main exhaust air corridor exceeded the measurement tube's capacity (greater than 60ppm). Measurements in an operating face indicate that the air velocity ranged from 25 to 45 linear feet per minute (lfm) in the primary incoming air passages to 90 to 100lfm leaving the entry face, using a face fan. The author suggests that most exposures to diesel exhaust emissions are distributed equally throughout the mine because the use of most diesel vehicles is not directly related to production. Exposure would likely be highest to those working in the mine toward the outlet of the exhausted air. The author recommends further study into exposures in the mine, the contributory effect of blasting to total noxious gas exposure, which job categories represent those most highly exposed, and what are individual exposure concentrations.
Keywords
NIOSH-Author; NIOSH-Survey; Field-Study; Region-6; Health-surveys; Worker-health; Industrial-hygiene; Diesel-emissions; Combustion-products
CAS No.
630-08-0; 10102-44-0; 124-38-9
Publication Date
19800303
Document Type
Field Studies; Industry Wide
Fiscal Year
1980
NTIS Accession No.
PB83-103945
NTIS Price
A02
Identifying No.
IWS-122-17
NIOSH Division
DSHEFS
SIC Code
2819
Source Name
National Institute for Occupational Safety and Health
State
NM; OH
Page last reviewed: September 2, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division