In the cases where the worker is exposed to compounds for a period longer than 8
ID: 274983 • Letter: I
Question
In the cases where the worker is exposed to compounds for a period longer than 8 hour, how should the industrial hygienist make his/her judgment?
The exposure limit should be adjusted to that number of hour with caution.
The same 8-hour rule should be applied.
The dose (concentration * time) should be adjusted carefully.
All of the above.
A.The exposure limit should be adjusted to that number of hour with caution.
B.The same 8-hour rule should be applied.
C.The dose (concentration * time) should be adjusted carefully.
D.All of the above.
Explanation / Answer
Ans- A.The exposure limit should be adjusted to that number of hour with caution.
Explanation:
The occupational exposure limit is usually 8 hr/d. If a worker is exposed for a period of more than 8 hours in a day, then the industrial hygienist make a time limit is reduced according to the following formula:
Maximum permissible limit (in ug/m3)= 400/ hours worked in the day
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