Asbestos diseases are said to follow the trail of exposure. That means that wherever people have received asbestos exposure, regardless of their trade, age, sex or race, they are at risk of cancer and other diseases.

Almost anyone who has inhaled asbestos dust is at risk. Even a worker's families and friends can be at risk, because asbestos can often be carried on clothing.

Exposure to asbestos dust can occur at major const

ruction job sites, in shipyards, in industry, and during construction or renovation of commercial buildings. See the list at right for certain occupations that are known to be those where risk of exposure to asbestos is great, and the numbers of people in such occupations contracting asbestos disease are high.