Canada Takes a Science-Based Approach to Assessing Asbestos in Drinking Water
It also acknowledges, in line with the World Health Organization’s (WHO) previous position, that “there is no consistent, convincing evidence that oral exposure to asbestos causes adverse effects in humans and animals.” The document also cites research findings from animal and human studies, indicating that “more than 99% of all ingested asbestos fibres pass through the digestive system and are excreted within 48 hours.” Furthermore, “the few fibres that do cross the intestinal barrier are generally less than 1 µm in length, a size that is not considered to be carcinogenic.”




