Decision on the New B.C. Exposure Limits based on the ACGIH TLVs for Fentanyl and Fentanyl Citrate, as Fentanyl
At its November 2024 meeting, WorkSafeBC’s Board of Directors (BOD) approved the adoption of the new American Conference of Governmental Industrial Hygienists Threshold Limit Value (ACGIH TLV) of 0.0001 mg/m3 (8-hour exposure limit) for fentanyl and fentanyl citrate, as fentanyl, inhalable. The BOD did not adopt the ACGIH TLV of 0.0002 mg/m3 (15-minute short-term exposure limit) as a B.C. exposure limit due to sampling issues.
Effective January 29, 2025, fentanyl and fentanyl citrate, as fentanyl, inhalable, will be reflected in the Table of Exposure Limits for Excluded Substances in Policy R5.48-1 of the Prevention Manual as B.C. exposure limits as follows:
|
Substance |
B.C. exposure limits |
||
|---|---|---|---|
|
8-hour time-weighted average limit |
Short-term exposure limit |
Ceiling limit |
|
|
Fentanyl and fentanyl citrate, as fentanyl, inhalable |
0.0001 mg/m3 |
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For more information, see WorkSafeBC's resource New exposure limit for fentanyl and fentanyl citrate.
WorkSafeBC will continue to monitor the availability of sampling methods for this substance, as well as to work on ongoing initiatives to develop, validate, and implement sampling methods.