Skip header and navigation

4 records – page 1 of 1.

Source
Occup Health Saf. 1977 Nov-Dec;46(6):38-43
Publication Type
Article
Source
Am Ind Hyg Assoc J. 1978 Apr;39(4):261-9
Publication Type
Article
Date
Apr-1978
Author
H M Nelson
G S Rajhans
S. Morton
J R Brown
Source
Am Ind Hyg Assoc J. 1978 Apr;39(4):261-9
Date
Apr-1978
Language
English
Publication Type
Article
Keywords
Air Pollutants - analysis
Air Pollutants, Occupational - analysis
Dust
Environmental Exposure
Humans
Maximum Allowable Concentration
Ontario
Particle Size
Silicon Dioxide - analysis
Silicosis - epidemiology
Abstract
A total of 16 cases of silicosis are reported in Ontario plants where there was exposure to silica flour. Dust counts expressed as mppcf are shown for four of these plants taken over a period of 37 years. A relationship has been obtained experimentally to permit conversion of the counts to respirable mass concentrations. Based on the information obtained, a TLV of 0.05 mg/m3 for silica flour is proposed.
PubMed ID
206125 View in PubMed
Less detail