Use of Field-Portable X-Ray Fluorescence (FPXRF) Analyzer to Measure Airborne Lead Levels in Korean Workplaces

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概要

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• We evaluated the possibility of applying field-portable x-ray fluorescence (FPXRF) analysis as a rapid, on-site and near real-time method for evaluating airborne lead contamination in Korean workplaces. A total of 287 airborne lead filter samples were measured in 12 lead-using workplaces during routine industrial hygienic monitoring procedures as required by Korean government regulations. All filter samples were collected using the standard industrial hygiene sampling protocol described in NIOSH Method 7300 using closed-face 37-mm cassettes with preloaded cellulose ester membrane filters with a pore size of 0.8μm. The samples were first analyzed using the non-destructive, FPXRF analytical method (NIOSH method 7702), and then subsequently analyzed using inductively coupled plasma atomic emission spectrophotometry (ICP) (NIOSH method 7300) as a reference analytical method. Pair-wise comparison of filter samples using the paired t-test revealed no statistically significant differences between the two methods over a wide range of airborne lead levels (0.018-0.201μg/m^3) either over the industries assessed or separately in the 12 lead-using workplaces. Linear regression of the data between the ICP and FPXRF methods produced a slope of 1.03, a y-intercept of 0.13μg/sample, and a coefficient of determinant (r^2) of 0.975 for all the data. For samples in the range from 0 to 100μg, the corresponding values were 1.07, -1.20μg/sample, and 0.925, respectively. There were no significant differences in the regression analyses of the three industry types (r^2=0.964-0.982). Our data suggest that FPXRF data are highly correlated with those from the laboratory-based ICP method in terms of accuracy, precision, and bias. Therefore, FPXRF can be used for the rapid, on-site analysis of lead air-filter samples for values up to 26μg/sample prior to laboratory confirmation by the ICP method.

• 社団法人日本産業衛生学会の論文

著者

• Kim Jin-ho

  韓国

• Ahn Kyu-dong

  Institute Of Environmental & Occupational Medicine College Of Medicine Soonchunhyang University

• LEE BYUNG-KOOK

  Institute of Industrial Medicine, Soonchunhyang University College of Medicine

• Lee Byung-kook

  Institute Of Environmental & Occupational Medicine College Of Medicine Soonchunhyang University

• Kim Jin-ho

  Institute Of Environmental & Occupational Medicine College Of Medicine Soonchunhyang University

• Kim Nam-soo

  Institute Of Environmental & Occupational Medicine College Of Medicine Soonchunhyang University

関連論文

• Nutritional Evaluation of Women in Urban and Rural Areas in Korea as Studied by Total Food Duplicate Method
• Use of Field-Portable X-Ray Fluorescence (FPXRF) Analyzer to Measure Airborne Lead Levels in Korean Workplaces

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