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Peter Clarke
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re: Reports: trace carcinogens found in Korean wafer fabs
Peter Clarke   2/7/2012 2:22:19 PM
I think you are right but you are not meant to detect them in the open enivironment where workers are exposed. I understand that benzene was no longer brought into these sites so that any benzene detected must have been produced in-plant by chemical reaction, but again should not be detectable. The cancer-inducing nature of materials is also a function of the amount of material present. I remember in another life when i had to read a learned paper about a food coloring called "Herring brown B." The paper supposedly showed "Herring brown B" to be a carcinogen. However, the amounts of "Herring brown B" fed/injected into rats were enormous, at some significant fraction of their body weight over some period of time (I am sorry but the details are forgotten). I can't even remember how Herring brown A and Herring brown C compared. But I remember thinking at the time that at that amount of exposure almost anything could show as a carcinogen.

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re: Reports: trace carcinogens found in Korean wafer fabs
elctrnx_lyf   2/7/2012 12:42:15 PM
I really feel for sad for the employees who have to work in such conditions. They should be provided with good health insurance.

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re: Reports: trace carcinogens found in Korean wafer fabs
daleste   2/7/2012 3:06:43 AM
The chemicals used in fabs are dangerous, especially arsenic. Hydroflouric acid is also very dangerous. The key is to use them without exposing the workers. I guess this study was measuring the concentrations in the air, so the workers are exposed. I wonder how the US fabs measure up.

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re: Reports: trace carcinogens found in Korean wafer fabs
Patk0317   2/6/2012 4:18:15 PM
This is an interesting study, but I had thought that a lot of the chemicals used in to process wafers were carcinogens.

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