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Summary
DescriptionCoal miner spraying rock dust.jpg
English: A coal miner in West Virginia spraying rockdust to reduce the combustible fraction of coal dust in the air.
Date
Source
https://www.flickr.com/photos/niosh/8743393753/
Author
National Institute for Occupational Safety and Health
Licensing
This image, originally posted to Flickr, was reviewed on 18 March 2024 by the administrator or reviewer Leoboudv, who confirmed that it was available on Flickr under the stated license on that date.
Public domainPublic domainfalsefalse
This image is a work of the Centers for Disease Control and Prevention, part of the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain.
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Items portrayed in this file
depicts
copyright status
public domain
inception
31 March 2009
captured with
Panasonic Lumix DMC-TZ3
exposure time
0.03333333333333333333 second
f-number
3.3
focal length
4.6 millimetre
ISO speed
400
MIME type
image/jpeg
instance of
photograph
checksum
8c5935d01640e5f3aa4cfe07af4c8f839d664ce7
determination method: SHA-1
data size
669,864 byte
height
2,144 pixel
width
3,216 pixel
File history
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current
16:21, 4 December 2013
3,216 × 2,144 (654 KB)
JZNIOSH
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File usage
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This photo was taken 900 feet underground in a bituminous coal mine. The coal miner in the photo is spraying rock dust (primarily calcium carbonate). Rock dust is used to reduce the combustible fraction of coal dust in the air. We were at the mine for a health hazard evaluation (2009-0085) of coal miners’ exposures to respirable dust and silica during rock dusting. To me occupational health and safety means going into deep dark places to address health and safety concerns.