10 min

30 min

1 h

4 h

8 h

19 ppm

12 ppm

8.5 ppm

4.5 ppm

3.3 ppm

Uncertainty Factors/Rationale:

Total uncertainty factor: 10

Interspecies: 3; the mouse was the most sensitive species in other studies with halogens

Intraspecies: 3; at high concentrations, the corrosive action of irritants is not expected to differ greatly among individuals.

Modifying Factor: Not applied.

Animal to Human Dosimetric Adjustment: Not applied.

Time-scaling: C2.2 × t = k, based on a mouse lethality study.

Data Adequacy: Compared with the lethality data on chlorine, these values may be conservative, but based on the small database for bromine, extra protectiveness was considered appropriate.

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