Suppose, during an 8-hour workday, a worker was exposed to a TWA of 130ppm of Cy
ID: 347467 • Letter: S
Question
Suppose, during an 8-hour workday, a worker was exposed to a TWA of 130ppm of Cyclohexene (PEL is 300ppm), a TWA of 22ppm of Cument (PEL is 50ppm) and a TWA of 1.75ppm of Formic acid (PEL is 5ppm). Assuming no other contaminants are present what is the TWA? Does the exposure exceed the PEL? (5 points)
Question 3 options:
Percentage of TWA reached is 122.33% and the PEL has been exceeded
Percentage of TWA reached is 73.42% and the PEL has not been exceeded
Percentage of TWA reached is 91.26% and the PEL has not been exceeded
Percentage of TWA reached is 135.25% and the PEL has been exceeded
Percentage of TWA reached is 122.33% and the PEL has been exceeded
Percentage of TWA reached is 73.42% and the PEL has not been exceeded
Percentage of TWA reached is 91.26% and the PEL has not been exceeded
Percentage of TWA reached is 135.25% and the PEL has been exceeded
Explanation / Answer
As we go on calculating:
So total is 122.33 and it has exceeded as 100% is reached.
Hence Option A
TWA PEL % (TWA/PEL) Cyclohexene 130 300 43.33% Cument 22 50 44.00% Formic 1.75 5 35.00% Total 122.33%Related Questions
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