AI Article Synopsis
- Automobile brake and clutch linings can contain 10 to 70% asbestos, primarily in the form of chrysotile.
- Studies in urban areas of West Germany revealed asbestos fiber concentrations in the air, reaching up to 1000 fibers per cubic meter for longer fibers.
- The production materials for brake linings and the dust released during braking are also found to contain asbestos fibers that have high cancer-causing potential.
Article Abstract
The brake and clutch linings of automobiles contain 10 to 70% of asbestos, mainly chrysotile. They are therefore considered to be a significant source of carcinogenic asbestos fibers in ambient air. This could be confirmed by measurements done in urban ambient air in different parts of West Germany. Asbestos fiber concentrations till 1000 fibers/m3 (for fibers longer than 5 microns) were found. It could be also shown, that materials used in the brake lining production as well as dust emitted during car braking contained asbestos fibers with high carcinogenic potency.
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