| Chemical speciation of lead dust associated with primary lead smelting. | |
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MedLine Citation:
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PMID: 9721256 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The research presented in this article assessed geochemical factors relating to dust produced during primary lead smelting. Bulk dust samples and size-selective airborne dust samples were collected from four areas of a primary lead smelter and analyzed by X-ray diffraction and sequential chemical extraction. X-ray diffraction showed that the smelter dusts were composed primarily of sulfides, oxides, sulfates, and silicates of metal ores, with galena being the primary dust component. Sequential extraction revealed the solubility of lead compounds at less than 7% in the exchangeable and mildly acidic steps for the bulk dusts collected from four smelter areas. The later steps of the extraction procedure were more effective in dissolving the lead compounds associated with the bulk dust samples, with 43%, 26%, and 8% of the total lead, in the ore storage, sinter, and blast/dross smelter areas, respectively, being extracted in the residual step. Sequential extraction of coarse airborne dust samples from the ore storage and sinter plant showed that 1.2% and 4.1% of the total lead, respectively, was exchangeable. The finer particle size fractions from these areas of the smelter showed higher percentages of exchangeable lead. Of the course airborne dust from the blast/dross furnace processes, 65% of the total lead was exchangeable. However, the largest percentage of lead from these areas was associated with the finer particle-size fractions. If lead bioavailability is related to its solubility as determined through sequential extraction, the health hazards associated with lead exposure may be appreciably enhanced in the blast and dross furnace processes. |
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Authors:
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T M Spear; W Svee; J H Vincent; N Stanisich |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Environmental health perspectives Volume: 106 ISSN: 0091-6765 ISO Abbreviation: Environ. Health Perspect. Publication Date: 1998 Sep |
Date Detail:
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Created Date: 1998-11-25 Completed Date: 1998-11-25 Revised Date: 2009-11-18 |
Medline Journal Info:
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Nlm Unique ID: 0330411 Medline TA: Environ Health Perspect Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 565-71 Citation Subset: IM |
Affiliation:
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School of Mines, Montana Tech of The University of Montana, Butte, MT 59701-8997, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Air Pollutants, Occupational
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analysis* Dust / analysis* Environmental Monitoring* Humans Lead / analysis*, chemistry* Metallurgy Montana Occupational Exposure / analysis* Sulfides / analysis |
| Chemical | |
Reg. No./Substance:
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0/Air Pollutants, Occupational; 0/Dust; 0/Sulfides; 1314-87-0/lead sulfide; 7439-92-1/Lead |
| Comments/Corrections | |
Comment In:
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Environ Health Perspect. 1998 Sep;106(9):531
[PMID:
9841212
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
| Full Text | |
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Journal Information Journal ID (nlm-ta): Environ Health Perspect ISSN: 0091-6765 |
Article Information Download PDF  Print publication date: Month: 9 Year: 1998 Volume: 106 Issue: 9 First Page: 565 Last Page: 571 ID: 1533158 PubMed Id: 9721256 |
| Chemical speciation of lead dust associated with primary lead smelting. | |
| T M Spear | |
| W Svee | |
| J H Vincent | |
| N Stanisich | |
| School of Mines, Montana Tech of The University of Montana, Butte, MT 59701-8997, USA. |
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