Engineering Board Exam Reviewer · Environmental Engineering · medium
The Threshold Limit Value (TLV) of a chemical refers to the:
- Concentration that kills 50% of test animals
- Boiling point of the chemical
- Airborne concentration to which nearly all workers may be repeatedly exposed without adverse effects
- Maximum amount that can be stored on site
Answer
C. Airborne concentration to which nearly all workers may be repeatedly exposed without adverse effects
Solution
TLVs are published by ACGIH; the time-weighted average (TWA) TLV is for an 8-hour day.
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