Journal of Environmental Health Sciences (한국환경보건학회지)
- Volume 27 Issue 4
- /
- Pages.51-62
- /
- 2001
- /
- 1738-4087(pISSN)
- /
- 2233-8616(eISSN)
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~35.39 mg/ ㎥ and the percentage of samples exceeded TLV of the Korean ministry of labor was 43.6%, Geometric mean of airborne Mn concentration was 0.06 mg/㎥(N.D~0.42mg/㎥) and the percentage of samples exceeded TLV of ACGIH was 15.4 % In case of airborne Me concentration, there is a significant difference among schools (p<0.05) Mn concentrations in blood of the exposed and control groups were 1.84