Reconstruction of occupational mercury exposures at a chloralkali plant
| Autor: | Claudine C. Manning, Phillip L. Williams, Howard Frumkin, Marsha Pierce, Amanda Sanders, Lisa Elon |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2001 |
| Předmět: |
medicine.medical_specialty
Georgia Exposure Category Job-exposure matrix Public Health Environmental and Occupational Health Chloralkali process chemistry.chemical_element Reproducibility of Results Air Pollutants Occupational Mercury Time weighted average Professional activity Mercury (element) Occupational medicine chemistry Environmental health Chemical Industry Occupational Exposure Papers medicine Environmental science Humans Occupational exposure Chlorine Retrospective Studies |
| Popis: | OBJECTIVE—To reconstruct historical workplace exposure to mercury (Hg) from 1956 to 1994 at a large chloralkali factory for use in a current epidemiology study of the factory. METHODS—All job activities of the employees were classified into one of 16 exposure categories, and the dates of changes in the processes were identified. Exposures to Hg for each job category, at each period of the plant's operation, were then reconstructed from several data sources. A job-time period-exposure matrix was created, and the individual exposures of former workers were calculated. Data on exposure to Hg in air were compared with modelled concentrations of Hg in air and data on urinary Hg of the employees. RESULTS—Within an exposure category, concentrations of Hg in air were fairly constant for the first 20 years of the factory's operation, but began to increase in the late 1970s. Employees working in the cell room had the greatest exposures to Hg. The exposure estimates had significant correlations (p |
| Databáze: | OpenAIRE |
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