Occupational health & safety
Hand-Arm Vibration (HAV)
Definition
Hand-arm vibration is mechanical vibration transmitted to the hand-arm system when workers use powered hand-held tools, hand-guided machinery, or hold workpieces against vibrating equipment. Prolonged exposure can cause hand-arm vibration syndrome — damage to blood vessels, nerves, and joints, including vibration-induced white finger. EU Directive 2002/44/EC sets minimum health and safety requirements, defining daily exposure action and limit values standardised to an eight-hour reference period.
References
Overview
What it means
HAV is a classic occupational-health hazard of construction, forestry, foundries, and manufacturing: the harm is cumulative, irreversible, and preventable through tool selection, exposure-time management, maintenance, and health surveillance. Regulation obliges employers to assess exposure, reduce risks at source, and monitor affected workers.
How it is used
Employers conduct vibration risk assessments under national transpositions of the EU directive and standards such as ISO 5349; the concept appears in OSH management systems and social-compliance auditing.
Why it matters
Decent work includes physical safety; HAV is one of the most common and most preventable causes of occupational disability in tool-using industries. **Note:** Drafted as Medium confidence: a workplace-health term included for the social pillar of sustainability.