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HHE determination report no. HHE-77-56-467, Johns-Manvill Products Corporation, Pittsburg, California.

Authors
Okawa-MT; Apol-AG
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, HHE 77-56-467, 1978 Feb; :1-19
NIOSHTIC No.
00080132
Abstract
An investigation was made to determine whether fibrous-glass used in the production of asphalt (8052424) shingles (SIC-2952) is toxic in the concentrations used. For purposes of completeness, environmental evaluations of worker exposure to some of the other materials in the workplace such as asbestos (1332214), crystalline- silica (7631869), formaldehyde (50000), and asphalt (petroleum) were made. The methods for the evaluation of the work environment varied depending upon the substance being sampled. No medical investigation was made. Employees working in and around the shingle manufacturing line are not exposed to excessive levels of fibrous- glass. The slateman is exposed to potentially toxic levels of dust containing crystalline-silica. Employees entering the saturator are exposed to potentially high levels of benz(a)pyrene (50328). Employees' exposures to asphalt-fumes could not be adequately characterized to make a definite conclusion concerning toxicity with the currently available sampling and analytical techniques. Employees' exposures to formaldehyde, aromatic hydrocarbons, and total aliphatic hydrocarbons are not toxic.
Keywords
NIOSH-Author; NIOSH-Health-Hazard-Evaluation; Air-sampling; Air-quality-measurement; Roofing-materials; Air-contamination; Fibrous-glass; Polynuclear-hydrocarbons; Aldehydes; Fibrous-bodies; Aromatic-hydrocarbons; Aliphatic-hydrocarbons; Fumes; Industrial-hygiene; Asphalt-industry; Occupational-health; HHE-77-56-467; Hazards-Confirmed; Region-9; Author Keywords: shingle manufacturing; fibrous glass; crystalline silica; benz(a)pyrene; asphalt fumes; formaldehyde; aromatic hydrocarbons; total aliphatic hydrocarbons
CAS No.
8052-42-4; 1332-21-4; 7631-86-9; 50-00-0; 50-32-8
Publication Date
19780201
Document Type
Field Studies; Health Hazard Evaluation
Fiscal Year
1978
NTIS Accession No.
PB-291657
NTIS Price
A03
Identifying No.
HHE-77-56-467
NIOSH Division
DSHEFS
SIC Code
2952
Source Name
National Institute for Occupational Safety and Health
State
CA; OH
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