Why is ASW/RCF classified as carcinogenic?

- Jun 11, 2018-

The classification of ASW/RCF as carcinogenic in European regulation is based on the results of studies performed in the 1980’s in which experimental animals were exposed to extremely high concentrations of airborne fibres. It is now widely believed that the cancers found in these rats were at least partly due to ‘overload’ - a phenomenon by which otherwise inert particles can cause lung cancer if doses are high enough. ASW/RCF has been in industrial use for more than 60 years. Results of human epidemiological studies to date indicate that ASW/RCF workers are at no increased risk of lung cancer or mesothelioma.