| Respirable dust control in grinding gray iron castings. | |
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MedLine Citation:
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PMID: 3031975 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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High speed grinding of gray iron castings long has been associated with excessive exposure to crystalline silica. Not all workers engaged in these operations are protected by conventional ventilation techniques. Dust in the air that has been entrained by the spinning grinding wheel and not captured in the grinder hood has been postulated to be a major exposure source. A pilot grinding operation was constructed, and the size distribution and concentration of airborne particles were measured with the aerodynamic particle sizer (APS). Various control measures proved effective in reducing the respirable dust concentration: increased exhaust ventilation, and installation of baffles and/or the use of an air jet to deflect the entrained air stream. The concentration of respirable dust is the breathing zone was reduced approximately 20-fold through the combined use of increased ventilation, interior baffles, and an air jet. The air jet and baffle utilized at the base ventilation rate reduced the respirable dust concentration by a factor of three to four, whereas the baffle alone halved the concentration. |
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Authors:
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D O'Brien; P Baron; K Willeke |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: American Industrial Hygiene Association journal Volume: 48 ISSN: 0002-8894 ISO Abbreviation: Am Ind Hyg Assoc J Publication Date: 1987 Feb |
Date Detail:
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Created Date: 1987-05-06 Completed Date: 1987-05-06 Revised Date: 2007-11-14 |
Medline Journal Info:
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Nlm Unique ID: 0371160 Medline TA: Am Ind Hyg Assoc J Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 181-7 Citation Subset: IM |
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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toxicity* Dust / prevention & control* Humans Iron* Occupational Diseases / chemically induced*, prevention & control Respiration / drug effects* Silicon Dioxide / toxicity* |
| Grant Support | |
ID/Acronym/Agency:
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OH-1301/OH/NIOSH CDC HHS |
| Chemical | |
Reg. No./Substance:
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0/Air Pollutants, Occupational; 0/Dust; 7439-89-6/Iron; 7631-86-9/Silicon Dioxide |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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