Question: Problem #1 Same chemical with multiple exposures in an 8 hour period Chemical G - PEL = 400 PPM Time of Exposure in hours (t)

Problem #1 Same chemical with multiple exposures in an 8 hour period

Chemical G - PEL = 400 PPM

Time of Exposure in hours (t)

Concentration in PPM (x)

1

520

2

480

3

100

1.5

200

0.5

300

Find TWA. Does worker require PPE?

Problem #2 Multiple chemical exposure in an 8 hour period

Chemical

Exposure (PPM)

PEL (PPM)

M

350

300

N

300

350

O

350

400

P

300

250

Q

250

200

R

250

300

Find TLV. Does worker require PPE?

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