absetos Flashcards
what are the physical properties of asbestos
either serpentine (chrysolite) which has curly fibers
or amphibole which are straight fibered
all fibers are significant; small and are easily inhaled (lrg SA)
high tensile strength
thermal and chemical stability
flexible
low electric conductivity
fire resistant
what are the 6 minerals that are collectively named as asbestos
Amostie
Anthophylite
Tremolite
Actinolite
crocidolite
chrysotile
where can asbestos be found in the home
floor tile
insulation
ceilings
car and break pads
house siding
break pads
what does benign mean
non cancerous
what does malignant mean
cancerous
what are the 2 benign and 2 malignant effects of asbestos exposure
non: asbestosis
pleural plaques (white raised plaques on the lung surface and impact breathing)
mal: lung cancer
mesothelioma
risk of asbestous in calgary
some homes built before 1990 may still have it.
-pips and drywall
insulation
floor tiles
roofs and siding
heating and plumbing
what rock is asbestous found in
metamorphic
which is the most common form of asbestos
chrysotile. it has a low biodurability
which is the most dangerous form of asbestos
crocidolite. it has a very high biodurbility and high resistance to acid
tremolite fiber colour and structure
milky white with sharp fibers
actinolite fiber colour and structure
greenish and sharp fibers
what ats the secdon most common type found in lungs?
amosite. It has sharpe fibers
what type of asbestous is known for being found with other minerals
anthophylite. it is not activey mined for. common in products with vermiculite and talc
what was the largest asbestous mine in Canada?
Lac’d Amiante du Canada and the Jeffrey mine in Quebec
