Proceedings of the Korean Environmental Health Society Conference (한국환경보건학회:학술대회논문집)
- 2002.04a
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- Pages.37-39
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- 2002
Exposure Evaluation to Total Welding Fume and Manganese at Technical High Schools in Choong-Nam Area
충청지역 일부 공업고등학교 실습생의 용접흄 및 망간에 대한 노출 평가
Abstract
Geometric mean of airborne welding fume concentration at technical high schools was 4.80mg/㎥(N.D∼35.39mg/㎥) and the percentage of samples exceeded TLV of the Korean ministry of labor was 43.6%, Geometric mean of airborne Mn concentration was 0.06mg/㎥(N.D∼0.42mg/㎥) and the percentage of samples exceeded TLV of ACGIH was 15.4%. In case of airborne Mn concentration, there is a significant difference among schools (P<0.05). Mn concentrations in blood of the exposed and control groups were 1.84
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