Document QZJpp6RwNYRnGd88gXLG3d2E
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1 more from Mr. Shellenberger and Ms. Hines about what 1 in the lung on the lining or down in the diaphragm,
2 the companies knew. What they actually knew about 2 and they are known as pleural plaques.
3 what the hazards were of human exposure to asbestos., 3
Fibers. All of the asbestos are fibers. It
4
And the evidence will show that they knew,
4 means their length is at least three times their
5 they knew it was harmful and they didn't warn.
5 width. The fibers are in various sizes.
6
Now I want to talk very briefly to you about
6
They can be two microns to one micron, 15
7 asbestos.
7 microns, and you will hear from the doctors about what
8 It is a fibrous material. It is mined from
8 a micron is and how small it is. It is invisible to
9 the earth. Because it has certain qualities, it is
9 the naked eye.
10 incorporated into certain types of products such as
10
They are microscopic in size.
11 pipecovering and block and cement which you will hear 11
They can be aerosolized. Because of their
j
12 about in Mr. Vandergucht's case, and it is also
12 aerodynamic qualities, they can float in the air.
13 incorporated into friction products that are used on
13
When it is brushed up, when the pipecovering 1
14 cars, in vehicles, in brakes, brake pads, and
14 is cut, when it is sawed, when the brake materials are {
15 clutches.
15 manipulated, they can release asbestos-containing
16 Tbere are different types. There is a type 16 dusts which can get into the passage of the airways,
17 known as serpentine which is chrysotile. It is white
17 cause havoc of the lung and cause undeniably
18 and sometimes curly.
18 mesothelioma in the pleura and the abdominal cavity.
19 And amosite, which is brownish in color, a 19 The next thing I want to talk to you about
20 brown tint. It doesn't actually look brown. And then 20 are some medical concepts that you will hear about
21 there is another amphibole known as tremolite which is 21 from the doctors. It relates to asbestos-related
1 a contaminant of chrysotile.
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1 disease.
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2 When these materials are mined from the 2 The ones we are going to be concerned about,
3 earth, the chrysotile has certain gang materials that
3 mesothelioma, and the other disease it can cause is
4 go along with it that are part of the contamination,
4 asbestosis.
5 but it is also a fibrous form of asbestos known as
5
All of these are dose -- asbestos fibers can
6 tremolite.
6 cause other diseases as well, but we are going to be
7 There is also another one known as
7 focusing on mesothelioma. They are dose response
8 crocidolite.
8 related.
9 There are several things that asbestos
9 The more asbestos exposure you have, the
10 fibers have in common. They can all cause cancer.
10 more likely you are to get a disease, but the very
11 All of the commercial types that I talked to you
11 crucial and important thing that you will hear about
12 about, chrysotile with its contaminant tremolite,
12 mesothelioma is there is no safe level of exposure.
13 amosite, crocidolite, all of them can cause
13 There is no threshold below which it will occur --
14 mesothelioma. They are all fibrogenic.
14 will not occur.
15
They can all cause fibrosis, scarring of the
15
Small amounts of occupational asbestos
16 lungs or asbestosis which is a disease that affects
16 exposure can cause peritoneal and pleural
17 not the lining or outside of the lung in the pleura.
17 mesothelioma.
18 but the inner portion of the lung, the lung parenchyma 18
It is host responsive. Different people
19 itself, the meat of the lung where the respiration
19 react different ways. It does not have the same
20 takes place.
20 effect on everybody.
21
There are also other changes that can occur
21
Some people can be exposed to the same
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