Asbestos Exposure in the Motor Vehicle Repair and Servicing Industry in Hong Kong

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Abstract
Twelve garages representing the local motor vehicle repair and servicing industry were surveyed to assess the asbestos exposure of workers as a basis for determining health protection strategy. Chrysotile fibres arising from brake dust or machining asbestos containing friction material were present in air samples from all workplaces. With maximum levels in personal sampling averaging 0.13 fibre/ml and static sampling averaging 0.05 fibre/ml exposure appeared to be well within the accepted hygiene standards for occupational exposure. Although dust concentrations were low and the hazard of pulmonary fibrosis negligible, uncertainty about the relationship between fibre levels and carcinogenic risk indicated the need to alert local industry to possible health hazard and preventive measures by publication of an appropriate code of practice.

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