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KMID : 0895419960060020249
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Journal of Korean Society of Occupational and Enviromental Hygiene
1996 Volume.6 No. 2 p.249 ~ p.264
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A Study on Metal Concentrations in the Air of Metal Products Manufacturing Industry
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김세동/Kim, Se Dong
강용선/구태형/윤형렬/문덕환/한용수/Kang, Yong Seon/Ku, Tae Hyeong/Yoon, Hyeong Ryeol/Moon, Deon Hwan/Han, Yong Soo
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Abstract
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This study was conducted for the purpose of obtaining the fundamental data on improvement of working environment and contributing to health improvement of workers who dealed with metal by assessing the metal concentration in air of industries located in Chang-Won Industrial Complex.
Authors measured the concentration of metals(Al, Cd, Cr, Cu, Mn, Ni, Pb, Sn and Zn) is the air to 25 working processes of 73 industries by flame atomic absorption spectrometry from February to December 1994.
Personal air sampler was used for air sampling with mixed cellulose-ester membrane filter.
The results were as follows :
1. The geometric means(range) of metal concentration;
1) Al: 0.1505 ㎎/㎥ (0.0147 - 18.6100 ㎎/㎥)
2) Cd: 0.0077 ㎎/㎥ (0.0003 - 7.0710 ㎎/㎥)
3) Cr: 0.0163 ㎎/㎥ (0.0013 - 1.1510 ㎎/㎥)
4) Cu: 0.0097 ㎎/㎥ (0.0009 - 0.4950 ㎎/㎥)
5) Mn: 0.0412 ㎎/㎥ (0.0006 - 4.7877 ㎎/㎥)
6) Ni: 0.0088 ㎎/㎥ (0.0001 - 1.0170 ㎎/㎥)
7) Pb: 0.0152 ㎎/㎥ (0.0015 - 0.4499 ㎎/㎥)
8) Sn: 0.0486 ㎎/㎥ (0.0037 - 0.1500 ㎎/㎥)
9) Zn: 0.1911 ㎎/㎥ (0.0122 - 8.2920 ㎎/㎥)
2. The geometric mean of lead exceeded TWA in assembling process of other general purpose machinery not elsewhere classified products manufacturing industries.
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