The Effect of Silica Dust on Ventilatory Function in Foundry Workers

Jung Wan Koo; Kyoung Ah Kim; Chee Kyung Chung

doi:10.35371/kjoem.1998.10.1.94

The Effect of Silica Dust on Ventilatory Function in Foundry Workers

Korean Journal of Occupational and Environmental Medicine ◽

10.35371/kjoem.1998.10.1.94 ◽

1998 ◽

Vol 10 (1) ◽

pp. 94

Author(s):

Jung Wan Koo ◽

Kyoung Ah Kim ◽

Chee Kyung Chung

Keyword(s):

Ventilatory Function ◽

Silica Dust ◽

Foundry Workers

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The Effect of Silica Dust on Ventilatory Function of Foundry Workers

Journal of Occupational Health ◽

10.1539/joh.42.251 ◽

2000 ◽

Vol 42 (5) ◽

pp. 251-257 ◽

Cited By ~ 4

Author(s):

Jung Wan Koo ◽

Chee Kyung Chung ◽

Chung Yill Park ◽

Se‐Hoon Lee ◽

Kang‐Sook Lee ◽

...

Keyword(s):

Ventilatory Function ◽

Silica Dust ◽

Foundry Workers

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Antinuclear Antibody and Rheumatoid Factor in Silica-Exposed Workers

Archives of Industrial Hygiene and Toxicology ◽

10.2478/10004-1254-60-2009-1892 ◽

2009 ◽

Vol 60 (2) ◽

pp. 185-190 ◽

Cited By ~ 7

Author(s):

Omid Aminian ◽

Seyed Sharifian ◽

Ramin Mehrdad ◽

Khosro Haghighi ◽

Maria Mazaheri

Keyword(s):

Rheumatoid Factor ◽

Antinuclear Antibody ◽

Control Group ◽

Humoral Immune ◽

Silica Dust ◽

Work Duration ◽

Exposed Workers ◽

Permissible Levels ◽

And Control ◽

Foundry Workers

Antinuclear Antibody and Rheumatoid Factor in Silica-Exposed WorkersA lot of workers in industries such as foundry, stonecutting, and sandblasting are exposed to higher than permissible levels of crystalline silica. Various alterations in humoral immune function have been reported in silicosis patients and workers exposed to silica dust. The aim of this study was to measure antinuclear antibody (ANA) and rheumatoid factor (RF) levels in foundry workers exposed to silica and to compare them with a control group without such exposure. ANA and RF were measured in 78 exposed and 73 non-exposed workers, and standard statistical methods were used to compare them. The two groups did not significantly differ in age and smoking. Mean work duration of the exposed and non-exposed workers was (14.9±4.72) years and (12.41±6.3) years, respectively. Ten exposed workers had silicosis. ANA was negative in all workers in either group. Its mean titer did not differ significantly between the exposed and control workers [(0.39±0.15) IU mL-1vs. (0.36±0.17) IU mL-1, respectively]. RF was positive in two workers of each group. Other studies have reported an increase in ANA and RF associated with exposure to silica dust and silicosis.In contrast, our study suggests that exposure to silica dust does not increase the level of ANA and RF in exposed workers.

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