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HHE Report No. HETA-90-0365-2415, U.S. Department of the Interior, National Park Service, Yosemite National Park, California.

Authors

Reh-CM; Letts-D; Deitchman-S

Source

NIOSH 1994 Apr:56 pages

Link

http://www.cdc.gov/niosh/hhe/reports/pdfs/1990-0365-2415.pdf 

NIOSHTIC No.

00227192 

Abstract

In response to a request from the US Department of the Interior, National Park Service, an investigation was begun into possible hazardous exposures for workers fighting the Arch Rock Fire (SIC- 0851) in Yosemite National Park, California. The survey assessed exposure to carbon-monoxide (630080) (CO), sulfur-dioxide (7446095) (SO2), nitrogen-dioxide (10102440), respirable particulate matter, polynuclear aromatic hydrocarbons, volatile organic compounds, aldehydes, and acid gases. Samples of new and washed bandannas, often used for respiratory protection by firefighters, were also measured to determine the pore size. Cross shift changes in lung function, CO levels in exhaled breath, and respiratory and central nervous system symptoms were monitored. The study determined that there was a hazard at the operation, with three CO exposure concentrations being above the adjusted guideline of 21 parts per million (ppm) and two of the 11 exposure concentrations for SO2 being above the NIOSH recommended exposure limit of 2.0ppm. Evidence was also gathered which suggested that there were acute changes in lung function associated with the activities of Type-I crew members. The authors conclude that a potential health hazard existed from exposure to carbon-monoxide and sulfur dioxide. The authors recommend that respiratory protection and respiratory surveillance programs be instituted.

Keywords

NIOSH-Author; NIOSH-Health-Hazard-Evaluation; NIOSH-Technical-Assistance-Report; HETA-90-0365-2415; Region-9; Hazard-Confirmed; Fire-fighting; Firemen; Air-quality-monitoring; Pulmonary-function; Toxic-gases; Combustion-products; Forestry-workers; Occupational-exposure;

CAS No.

630-08-0; 7446-09-5; 10102-44-0;

Publication Date

19940401

Document Type

Hazard Evaluation and Technical Assistance;

Fiscal Year

1994

NTIS Accession No.

PB95-242541

NTIS Price

A05

Identifying No.

HETA-90-0365-2415

NIOSH Division

DSHEFS;

SIC Code

851;

Source Name

Hazard Evaluations and Technical Assistance Branch, NIOSH, U.S. Department of Health and Human Services, Cincinnati, Ohio, Report No. HETA-90-0365-2415, 56 pages, 33 references

State

CA; OH;