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Testing a revised inlet for the personal dust monitor
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February 22 2019
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Source: J Occup Environ Hyg. 16(3):242-249
[PDF-909.62 KB]
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Alternative Title:J Occup Environ Hyg
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Description:A person-wearable dust monitor that provides nearly real-time, mass-based readings of respirable dust was developed for use in underground coal mines. This personal dust monitor (PDM) combined dust sampling instrumentation with a cap lamp (and battery) into one belt-wearable unit, with the air inlet mounted on the cap lamp. However, obsolescence of belt-carried cap lamp and batteries in coal mining ensued and led end users to request that the cap lamp and battery be removed from the PDM. Removal of these components necessitated the design of a new air inlet to be worn on the miner's lapel. The revised inlet was tested for dust collection equivalency against the original cap-mounted inlet design. Using calculated inlet respirable fractions and measured dust mass collection, the performance of the two inlets is shown to be similar. The new inlet requires a 1.02 factor for converting dust masses obtained from it to equivalent masses collected from the original inlet.
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Pubmed ID:30620243
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Pubmed Central ID:PMC6509700
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Volume:16
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Issue:3
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