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Ideally, other engineering controls should lessen the amount of dust collecting on the floor and being tracked onto the sticky mat, unlike this example. [13] Other non-ventilation engineering controls in general cover a range of control measures, such as guards and barricades, material treatment, or additives.
Ideally, other engineering controls should lessen the amount of dust collecting on the floor and being tracked onto the sticky mat, unlike this example. [3] Other non-ventilation engineering controls in general cover a range of control measures, such as guards and barricades, material treatment, or additives.
This may include eliminating a dust generating agent, or simply replacing a highly toxic agent with a safer one. Engineering controls such as wet methods, dust collectors, and improved HVAC systems can also be highly protective. Administrative measures such as shift rotations can also help reduce personal exposures to acceptable levels.
A fume hood is an engineering control using local exhaust ventilation combined with an enclosure. A sticky mat in a nanomaterials production facility. Ideally, other engineering controls should lessen the amount of dust collecting on the floor and being tracked onto the sticky mat, unlike this example. [5]
Administrative controls do not remove hazards, but limit or prevent people's exposure to the hazards, such as completing road construction at night when fewer people are driving. [5] Administrative controls are ranked lower than elimination, substitution, and engineering controls because they do not directly remove or reduce workplace hazards.
When engineering controls are implemented, there is a physical change made to the work environment that will eliminate or reduce the risk to chemical exposure. An example of engineering controls is the enclosure or isolation of the process that creates the chemical hazard. [16]
Dust control is another important function of tunnel ventilation. Dust particles generated by drilling and blasting can impair visibility, clog equipment, and harm respiratory health. By directing fresh air through the tunnels, ventilation systems help to reduce dust concentration, improving air quality and visibility.
Appropriate controls are selected from the hierarchy of control: by elimination, substitution, engineering, administration and personal protective equipment (PPE) to control the hazard or eliminate the risk. Such controls may involve recommendations as simple as appropriate PPE such as a 'basic' particulate dust mask to occasionally designing ...