Question: If the following data was gathered during a sampling study of an employee handling solvents, would the employee be over-exposed? Assume the toxicological effects on

 If the following data was gathered during a sampling study of

If the following data was gathered during a sampling study of an employee handling solvents, would the employee be over-exposed? Assume the toxicological effects on the target organ are similar and additive. Monitoring yields results of 20ppm exposure to toluene, 30ppm exposure to xylenes, and 10ppm to ethyl benzene. The TLVs TWAs are toluene 20ppm; xylenes 100ppm, and ethyl benzene 20ppm. Formula: Total Exposure =C1/TLV1+C2/TLV2+C3/TLV3

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