Engineering controls are a method of hazard control that minimizes worker exposure by physically isolating them from hazards or by placing barriers between workers and hazards. They are designed to protect workers from hazards without relying on human behavior. Some of the examples of engineering controls include process controls, isolation, containment, and ventilation
Engineering Control Methods
Process Controls
Process controls are engineering controls that involve modifying the way a task is performed to reduce risk. Examples of this engineering control method include using wet methods for tasks like drilling or grinding to minimize dust, using temperature controls to reduce vapor generation, or automating tasks to minimize human error.
Process controls can reduce the amount and frequency of contact with hazards, as well as the potential for accidents and injuries. They can also improve the quality and consistency of the output, as well as the efficiency and productivity of the workers.
Isolation
Isolation is an engineering control method that involves physically separating workers from hazards. Examples of this engineering control method include using barriers like guardrails to prevent falls, interlocks to prevent accidental machine operation, noise barriers to reduce noise levels, and radiation shields to protect against harmful radiation.
Isolation can prevent or limit exposure to hazards, as well as the potential for injuries or illnesses. It can also provide a safer and more comfortable work environment for the workers.
Containment
Containment is an engineering control method that involves isolating hazards within a defined space or system to minimize exposure. Examples of this engineering control method include using fume hoods, biosafety cabinets, or sealed containers to control airborne contaminants, biological materials, and hazardous chemicals, respectively.
Containment can reduce or eliminate the release or spread of hazards, as well as the potential for exposure or harm. It can also ensure compliance with regulatory standards and requirements.
Ventilation
Ventilation is an engineering control method that involves supplying or removing air from a workspace to manage air quality and temperature. Examples include using systems like fume hoods or general ventilation to remove or dilute hazardous airborne contaminants. Local exhaust ventilation captures contaminants at the source, while general ventilation circulates and replaces air in a space.
Ventilation can control or prevent the accumulation of hazardous substances or conditions, such as dust, fumes, vapors, gases, heat, or humidity. It can also enhance the health and comfort of the workers.
Engineering controls are effective and efficient ways of protecting workers by directly addressing hazards at their source. They minimize worker exposure to hazards, are more reliable than relying on human behavior. By implementing engineering controls, workplaces can significantly reduce worker exposure to hazards and improve overall safety.
Additional Facts and Statistics about Engineering Controls:
- According to a study by the National Institute for Occupational Safety and Health (NIOSH), engineering controls can reduce the risk of occupational asthma by 79% and the risk of occupational dermatitis by 52%. Source: https://www.safeopedia.com/definition/5070/engineering-controls
- According to the Occupational Safety and Health Administration (OSHA), engineering controls can save employers an average of $27,000 per injury case by avoiding direct and indirect costs such as medical expenses, lost wages, legal fees, and productivity losses. Source: https://bing.com/search?q=engineering+controls+benefits
- According to the World Health Organization (WHO), engineering controls can prevent or reduce the transmission of infectious diseases such as COVID-19, tuberculosis, and influenza by improving ventilation, filtration, and disinfection of indoor air. Source: https://us.surehire.com/2023/09/05/how-to-use-engineering-controls-to-keep-your-employees-safe-by-reducing-hazards/
- According to the International Labour Organization (ILO), engineering controls can enhance the quality of work life and well-being of workers by reducing stress, fatigue, and boredom, and by increasing satisfaction, motivation, and creativity. Source: https://interestingengineering.com/innovation/4-ways-to-set-up-a-robust-engineering-control-system
- According to the United Nations (UN), engineering controls can contribute to the achievement of the Sustainable Development Goals (SDGs) by reducing environmental impacts, promoting resource efficiency, and fostering innovation and social inclusion. Source: https://www.nae.edu/19579/19582/21020/7410/7687/EngineeringControlsforReducingWorkplaceNoise
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