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- W2264126988 abstract "The welding workers are frequently exposed to heavy metals such as manganese. Manganese is well evaporated into the air while welding. This study had been carried out to investigate the relationship of the blood manganese level to age, work duration, and smoking status among 128 welding workers in Gyeongnam and Jeonnam province from May to November, 2003. They showed high manganese level in the first health examination. Subjects were also classified for the investigation according to their smoking status as smokers and nonsmokers, work duration (≤9, 10~9, 20≤years), and ages (≤29, 30~39, 40~49, 50≤years). Blood manganese levels were analyzed by atomic absorption spectrophotometer (AAS). Mean blood manganese level was 1.62±0.56 ㎍/dl. In the comparison of blood manganese levels by age and smoking status, mean blood manganese levels of smokers in age of 20's, 30's, and 50's were 2.09±0.44 ㎍/dl, 1.94±0.33 ㎍/dl, and 2.15±0.33 ㎍/dl, respectively. Blood manganese levels of smokers were significantly higher than those of non-smokers, showing no significant difference in the 40's. In the comparison of blood manganese levels by work duration, the blood manganese levels of smokers were the highest in the case of 10 to 19 years work duration. This study showed that the blood manganese levels were related to the smoking status, work duration, and age. Mean manganese levels of smokers showed higher than those of nonsmokers. It also showed that the length of work duration was related to the elevation of blood manganese levels. Among the welding workers, blood manganese levels of smokers were the highest over their age of 50's. In conclusion, smoking was the most significant risk factor to increase blood manganese levels. The further study will need analysis of the other factors related to manganese level elevation." @default.
- W2264126988 created "2016-06-24" @default.
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- W2264126988 date "2003-12-01" @default.
- W2264126988 modified "2023-09-24" @default.
- W2264126988 title "A Study on the Blood Manganese Levels in Welding Workers" @default.
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