Journal of Preventive Medicine and Public Health
- Volume 13 Issue 1
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- Pages.27-34
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- 1980
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- 1975-8375(pISSN)
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- 2233-4521(eISSN)
Some Statistical Considerations for the Estimation of Urinary Mercury Excretion in Normal Individuals
정상인의 요중 수은배설량 추정의 통계학적 연구
- Park, Hee-Sook (Department of Preventive Medicine, College of Medicine, Chung-Ang University) ;
- Chung, Kyou-Chull (Department of Preventive Medicine, College of Medicine, Chung-Ang University)
- Published : 1980.10.01
Abstract
Purpose of this study is to find out proper means of estimating the urinary mercury excretion in the normal individuals. Whole void volume was collected every 2 hours beginning from 6 o'clock in the morning until 6 o'clock next morning. Mercury excretion in each urine specimen was measured by NIOSH recommended dithizone colorimetric method (Method No.: P & CAM 145). Urinary concentration of mercury was adjusted by two means: specific gravity of 1.024 and a gram of creatinine excretion per liter of urine comparing the data with the unadjusted ones. Mercury excretion in 24-hour urine specimen was calculated by adding the amounts measured with the hourly collected specimens of each individual. Statistical analysis of the urinary mercury excretion revealed the following results: 1. Frequency distribution curve of mercury excreted in urine of hourly specimens was best fitted to power function expressed in the form of
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