34 (tie). Metal-refining furnace operators and tender

Metal-refining furnace operators and tenders operate or tend furnaces to melt and refine metal before casting or to produce specified types of steel.

Median annual salary: $41,040

Overall unhealthiness score: 52.8

Top three health risks:

1. Exposure to contaminants: 100

2. Risk of minor burns, cuts, bites, and stings: 96

3. Exposure to hazardous conditions: 94