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Editable PowerPoint Slides for Lecturers. By Phil Hughes MBE and Ed Ferrett. 15. C hapter. Physical and psychological health hazards and control. Physical and psychological health hazards and control. After reading this chapter you should be able to:
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Editable PowerPoint Slides for Lecturers By Phil Hughes MBE and Ed Ferrett
15 Chapter Physical and psychological health hazards and control
Physical and psychological health hazards and control • After reading this chapter you should be able to: • Identify work processes and practices that may give rise to musculoskeletal health problems (in particular work-related upper limb disorders – WRULD) and suggest practical control measures • 2. Identify common welfare and work environment requirements in the • workplace • 3. Describe the health effects associated with exposure to noise and suggest • appropriate control measures • Describe the health effects associated with exposure to vibration and • suggest appropriate control measures • Describe the principal health effects associated with heat, ionising and • non-ionising radiation and outline basic protection techniques • Explain the causes and effects of stress at work and suggest appropriate • control actions • Describe the situations that present a risk of violence towards employees • and suggest ways of minimizing such risk • Describe the effects on health and safety of alcohol and drugs and outline • control actions.
Figure 15.1Workstation ergonomic design improvements After (a high chair could also be provided) Before
Figure 15.2Poor workstation layout may cause WRULD
Figure 15.3Injuries which can be caused by hand-arm vibration
Figure 15.4Mounted breaker to reduce vibration for the operator
Figure 15.8Better to control noise at source rather than wear ear protection
Figure 9Passage of sound waves • The ear with cochlea uncoiled • and (b) summary of transmission
Figure 15.10 and Table 15.6Typical ear protection zone signs and sound pressure levels
Figure 15.11Noise paths found in a workplace (a) The quiet area is subjected to reflected noise from a machine somewhere else in the building (b) The correct use of absorption in the roof will reduce the reflected noise reaching the quiet area (c) Segregation of the noisy operation will benefit the whole workplace
Figure 15.13Ionizing Radiation warning signs The IAEA Ionizing Radiation warning symbol –ISO 21482 Recently introduced The radiation hazard symbol
Figure 15.14A Class 4 laser setup for defeatable access control for properly trained persons
Figure 15.15Specialized eye protection for work with lasers
Figure 15.16Security coded access and surveillance CCTV