Abstract
Some of the most pernicious dangers of pollution arise from the presence of traces of toxic elements in the environment. In this work, we report on the determination of beryllium, arsenic, and selenium in the urine of steel production and steel quality control (QC) workers, in comparison to healthy control subjects. The urine samples were digested by a microwave system. Graphite furnace and hydride atomic absorption was used for the quantitative measurements of Be and As and Se, respectively. A quality control method for these procedures was established with concurrent analysis of Standard Trace Metals 7879 Level II and NIST SRM 2670 (Toxic Elements in Freeze Dried Urine).
The results show that the urinary levels of these elements in steel production (As, 38.1±28.7 µg/L; Be, 1.58±0.46 µg/L, and Se, 69.2±28.8µg/L) and in quality control workers (As, 23.9±18.1 µg/L; Be, 1.58±0.46 µg/L, and Se, 54.8±25.1 µg/L) are significantly higher than in the controls (As, 10.3±8.7 µg/L; Be, 0.83±0.46 µg/L; and Se, 32.3±13.5 µg/L).
The possible connection of these elements with the etiology of disease and the possible role of selenium as a protective agent against the oncogenic and teratogenic action of other substances is discussed. We suggest the need for improvement of environmental conditions in the workplace through better ventilation and industrial hygiene practices.
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Horng, C.J., Horng, P.H., Lin, S.C. et al. Determination of urinary beryllium, arsenic, and selenium in steel production workers. Biol Trace Elem Res 88, 235–246 (2002). https://doi.org/10.1385/BTER:88:3:235
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DOI: https://doi.org/10.1385/BTER:88:3:235