Estimación de exposición a fibras de asbestos en talleres ...
Presentation - Asbestos Fibre
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Asbestos Fiber
What is Asbestos Fibre
Asbestos is a set of six naturally occurring silicate minerals, which all have in common their eponymous asbestiform habit: long (roughly 1:20 aspect ratio), thin fibrous crystals, with each visible fiber composed of millions of microscopic "fibrils" that can be released by abrasion and other processes
The History of
ASBESTOS FIBRE
Industrial scale asbestos mining began in 1878 in Thetford township, Quebec. By 1895, mining was increasingly mechanized.
Serpentine(93% of commercial use)
Amphibole(7% of commercial use)
Chrysotile
Actinolite, Amosite, Anthophyllite,
Crocidolite, Richterite, Tremolite
Asbestos Fibrous Minerals
Six Types of AsbestosAsbestos is composed of six different types of natural minerals:• Chrysotile• Amosite• Crocidolite• Tremolite• Actinolite• Anthophyllite
Most common types
CLASSIFICATION OF ASBESTOS TYPES
• Serpentine Asbestos• Amphibole• Mining• Processing
Asbestos Products Asbestos was generally processed as:
◦ Fibrous sprayed preformed
◦ Textile woven wound
◦ Mixed with a binder
Uses of asbestos in Textile
cremation cloths cremation cloths padding laundry presses and mangles brake linings
gloves aprons belting for conveying hot materials fire blankets safety clothing insulation materials and curtains
MORE ASBESTOS LOADED PRODUCTS???
Cement Pipes, Cement Boards, Sheets, Plastics Clay, Compounds, Paints, Plasters Electrical, Mechanical Products Home Use Products
◦Cigarette Filters Pipe Covering Protective clothing
Health effects THE BODY CANNOT BREAKDOWN
ASBESTOS FIBRES.
THREE PRIMARY DISEASES ASSOCIATED WITH ASBESTOS EXPOSURE◦MESOTHELIOMA
◦LUNG CANCER
◦ASBESTOSIS