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Exposure Profiles and Source Identifications for Workers Exposed to Crystalline Silica During a Municipal Waste Incinerator Relining Period by Tung-Sheng Shih; Pao-Yin Lu; Ching-Hwa Chen; Jhy-Charm Soo; Ching-Lang Tsai; Perng-Jy Tsai is a Environmental Science article available to read on EtoBox.
What is Exposure Profiles and Source Identifications for Workers Exposed to Crystalline Silica During a Municipal Waste Incinerator Relining Period about?
In this study, respirable crystalline silica exposures to furnace relining workers of 7 exposure groups were assessed by conducting personal respirable dust samplings. All possible pollutant sources were identified for each exposure group through field observations, and bulk samples were randomly collected from each identified pollutant source. All collected samples were analyzed for their tridymite, cristobalite, and quartz contents by using the X-ray diffraction method. Results show that quartz was the only detectable crystalline silica content. We found that the resultant respirable quartz exposure levels presented in sequence for the 7 exposure groups (sand blasting > bottom ash cleaning > wall demolishing > relining > others > grid repairing > scaffold establishing) were different from that of the corresponding respirable dust exposure levels (bottom ash cleaning > wall demolishing > sand blasting > relining > grid repairing > scaffold establishing > others). 87.3-100% of workers' respirable quartz exposures of the 7 exposure groups exceeded the TLV-TWA (0.025 mg m -3 ) indicating appropriate control strategies should be taken immediately. By comparing the fractions of quartz
Who reads Exposure Profiles and Source Identifications for Workers Exposed to Crystalline Silica During a Municipal Waste Incinerator Relining Period?
It is typically read by researchers, students, and practitioners in Environmental Science.
- Author
- Tung-Sheng Shih; Pao-Yin Lu; Ching-Hwa Chen; Jhy-Charm Soo; Ching-Lang Tsai; Perng-Jy Tsai
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0304-3894)
- Published
- 2008
- Language
- EN
- Field
- Environmental Science (Physical Sciences)