Jump to content

File:Hoover-Pyramid Formulation of the Hierarchy of Control-20190203.jpg

Page contents not supported in other languages.
This is a file from the Wikimedia Commons
From Wikipedia, the free encyclopedia

Original file (960 × 720 pixels, file size: 180 KB, MIME type: image/jpeg)

Summary

Description
English: Components depicted in the pyramid formulation of the hierarchy of control are

• Elimination of the presence or magnitude of the hazard (not always possible if the material or condition is essential to the activity objectives but sometimes possible in the case of objectives that can be achieved by methods such as computer simulation), • Substitution of a less hazardous material or procedure (sometimes possible, such as through the use of materially similar surrogates or the use of less dispersible materials or less energetic processes; however it is prudent to remember that “regrettable substitution” is a term that applies to situations in which assumptions about the risk-reduction advantages of the substitution turned out to be wrong, • Modification of the material or procedure to reduce hazards or exposures (sometimes considered a subset of the substitution option but explicitly considered here to mean that the efficacy of the modification for the situation at hand must be confirmed by the user), • Engineering controls to prevent exposures (includes a variety of physical containment and ventilation strategies), • Warnings to indicate the need for and status of control (explicitly considered in the pyramid formulation to be a distinct hierarchy option to clarify the details of any warnings being used and to emphasize the growing capabilities and availability of real time sensors and monitors; whereas in other systems, warnings are sometimes considered part of engineered controls and sometimes part of administrative controls), • Administrative and work procedures to prevent exposures and confirm protection (an approach that relies highly on training and compliance), and finally, as the last barrier to exposure,

• Personal protective equipment (including respiratory protection).
Date
Source Own work
Author ARECCfan

Licensing

Public domain
This image is a work of the National Institute for Occupational Safety and Health, part of the Centers for Disease Control and Prevention in 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.

Deutsch | English | español | français | português | українська | 中文 | +/−

Captions

Depiction of a pyramid formulation of the hierarchy of controls that conveys how different strategies of control are associated with different levels of sustainability and potential risks.

Items portrayed in this file

depicts

1 October 2018

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current01:59, 4 March 2019Thumbnail for version as of 01:59, 4 March 2019960 × 720 (180 KB)ARECCfanUser created page with UploadWizard

The following page uses this file:

Global file usage

The following other wikis use this file: