The Risks Of Asbestos Exposure Asbestos isn't a danger unless the microscopic fibres become airborne. People who work with asbestos or smokers, as well as those with lung conditions are at greatest risk. Second-hand exposure can be caused by workers bringing asbestos particles home in their shoes, clothing or hair, http://www.stes.tyc.edu.tw/xoops/modules/profile/userinfo.php?uid=1929933