Editable PowerPoint Slides for Lecturers

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. 5Vibrating Roller

Figure 15.6Workstation design

Figure 15.7Well lit workplace

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

Table 15.7Need for a noise assessment

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 15.12Heat equation

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

Typical noise assessment record

Editable PowerPoint Slides for Lecturers