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What is a worker daily 8-hour exposure

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What is a worker's daily 8-hour exposure to trichloroethylene if he spends thirty minutes at an operation where the concentration is 300 ppm; 4 and a half hours at 200 ppm; and 3 hours at 50 ppm?

Reference no: EM132542414

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What is a worker daily 8-hour exposure : What is a worker's daily 8-hour exposure to trichloroethylene if he spends thirty minutes at an operation where the concentration is 300 ppm
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