photo of brown and black asbestos mastic

danger asbestos dangerous industrial cancer blck mastic brown material asbestosmastic lung dust lung cancer respirator fibers pollution basement banned mineral dirty elimination aged hvac wrapped hazardous materials illness restricted old pipe cancerous environment fibrous chrysotile fibre crystal industry tremolite carcinogen hazardous toxic asbestosis mesothelioma disease health asbestos asbestos-mastic mastic danger dangerous industrial