Asbestos exposure is still relevant across the world and increases the risk of malignant mesothelioma through known and less known occupational exposure, as well as nonoccupational exposure. Cumulative exposure increases the risk of mesothelioma even at low doses of less than 0.1 (fiber/mL) years. Therefore, current legal standards are not protective for prolonged exposure and incremental exposure at any concentration can increase the risk of the disease. Individuals with previous exposure should not be further exposed even at “low” levels to avoid increased risk. Even after 40–50 years after the exposure, the risk of mesothelioma increases and it is not clear whether it may reduce afterwards.
