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KMID : 0895420040140030290
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Journal of Korean Society of Occupational and Enviromental Hygiene
2004 Volume.14 No. 3 p.290 ~ p.300
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A Study on the Soil Pollution in Lead Industry
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Lee Ik-Jin
Ahn Kyu-Dong
Cho Kwang-Sung
Kim Nam-Su
Lee Sung-Soo
Lee Byung-Kook
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Abstract
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This study is to find out which the elements could cause the pollution in the soil, and to what the degree of the pollution has been progressed so far, with samples of the soils from such work places as 6 lead storage battery factories, a primary lead smelting factory, and a litharge factory, and finally from the area that is considered not to have been polluted by any industrial activities. The study variables are the number of employees, the date of foundation of workplace, the amount of use of lead, the size of the land, the size of facilities, and the capacity of dust collector. We inspected the accuracy and the precision of the portable X-ray Fluorescence which has been rarely used in this nation. Followings are the details of our inspection. 1. For the verification of the accuracy and the precision, we prepared three different concentrations. For the accuracy, we had 219.6 % collection rate from low concentration, 97.8 % from middle concentration, and 101.4% form high concentration. We found the variation modules by concentration, for the precision, to be 23.1 % from low concentration, 1.91 % from middle concentration, and 0.66 % from high concentration, the result of which shows us that the portable X-ray fluorescence’s accuracy and precision are somewhat low with low concentration, and high with middle or high concentration. 2. The lowest level of pollution in workplace caused by lead was that of D company’s with its average concentration was 182±2.512mg/kg the highest, C company’s with 72,069 ±2.548mg/kg.
3. We studied the association the date of foundation ofworkplace, the amount of use of lead, the size of the land,the rate of the building occupation of the land, lead amount in the soil, the capacity of the dust collector and devided the capacity of the dust collector by the size of the building to find out the relation between the dust collector’s affection per unit area and the rate of lead in the soil. From this study, which indicate the older the date of foundation of workplace, the smaller using lead, occupation of the land, the building occupation of the land, the capacity of the dust collector, the rate of the dust collector’s affection per unit area. 4. We made a comparitive study of only the groups of the storage battery company in the same way as above. From this study, we had almost the same result as we did from the study on the whole lead-related workplaces; the only different results we got from the variation of the amount the number of employees, which indicates the bigger the number of employees, the less soil pollution. it shows and the result is statistically worthy of attention(p<0.05). Is judged that use about utilization because it analytical accuracy and precision are high and have a lot of advantages about free medical care pretreatment and sample ore that analysis is difficult with galena specially in concentration more than constant level to inflect portable XRF in measurement about lead concentration among soil in place of business and estimation.
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KEYWORD
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Portable X-ray Fluorescence, Pollution in the soil
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