Public Domain Picture: This historical photograph, provided by the Center for Disease Control's (CDC), National Institute for Occupational Safety and Health (NIOSH

By: CDC/ Barbara Jenkins, NIOSH; PHS, Courtesy: Public Health Image Library

Views: 354 | Downloads: 1

This historical photograph, provided by the Center for Disease Control's (CDC), National Institute for Occupational Safety and Health (NIOSH

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Title:

This historical photograph, provided by the Center for Disease Control's (CDC), National Institute for Occupational Safety and Health (NIOSH

Description:

This historical photograph, provided by the Center for Disease Control's (CDC), National Institute for Occupational Safety and Health (NIOSH), depicted the inside of the 'U.S. Smelting, Refining, & Mining Co.' mine shaft in Utah. This mine shaft was located inside the Lark Section, at the bottom of the Yosemite No. 2 Incline B., on the exhaust side. Situated in this image towards the left, was a 125 HP Jeffrey Aerodyne� exhaust fan, which had a 14,000 cfm flow-through capacity. In the close confines of a subterranean mine such as this one, it's critically important that proper air quality be maintained. Note that the miner was wearing a protective hard hat, goggles, and gloves, but no filtered breathing mask was worn; however, the quality of this air cannot be determined from this image. Also note the 'High Voltage' warning sign posted on the door towards the far right.

Creator:

CDC/ Barbara Jenkins, NIOSH; PHS

Source:

Public Health Image Library

Views:

354

Downloads:

Date Added:

November 17, 2012

Download: Largest

Size: 700 x 485
File size: 47.1 KB
File type: jpg

Free

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Produced by United States Government

The file available on this page is a work of the United States government. A work of the United States government, as defined by United States copyright law, is "a work prepared by an officer or employee of the U.S. government as part of that person's official duties." In general, under section 105 of the Copyright Act, such works are not entitled to domestic copyright protection under U.S. law.

Where is this picture from?

Public Health Image Library

Created by a Working Group at the Centers for Disease Control and Prevention (CDC), the PHIL offers an organized, universal electronic gateway to CDC's pictures. They welcome public health professionals, the media, laboratory scientists, educators, students, and the worldwide public to use this m

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