Table 2.
Air toxics | HAPs by US EPA | TLV basis by ACGIH a |
---|---|---|
Ammonia (NH3) | - | Eye damage; URT irritation |
Chlorine (Cl2) | Listed | URT & eye irritation |
Fluorides (as F) | - | Bone damage; fluorosis |
Hydrochloric acid (HCl) | Listed | URT irritation |
Hydrogen cyanide (as cyanide compounds) | Listed | URT irritation; headache; nausea; thyroid effects |
Hydrogen fluoride (HF) | Listed | (URT, LRT, skin & eye irritation; fluorosis) b |
Hydrogen sulfide (H2S) | Listed | URT, LRT, skin & eye irritation; headache; nausea; apnea |
Nitric acid (HNO3) | - | URT & eye irritation; dental erosion |
Phosphoric acid (H3PO4) | - | URT, eye & skin irritation |
Sulfuric acid (H2SO4) | - | Pulmonary function |
a URT: upper respiratory tract; LRT: lower respiratory tract; b The health hazard information in parentheses was obtained from the NIOSH website [16].