No odor reported for metal or most compounds. Arsenic trioxide has a garlic-like odor. Does not bioaccumulate. As with all chemicals, the type and severity of health effects associated with exposure to arsenic and related compounds depend on the level, duration, and route of exposure. The age, sex, weight, preexisting health condition, and overall susceptibility of the individual also determine the health effects he or she may experience.
Individuals show a wide range of variability in their tolerance of chemical exposure.
Arsenic may be an essential trace nutrient in some animals, and may be one in humans. Dusts and mists can cause coughing, chest pains, difficult breathing, giddiness, headache, nausea, vomiting, diarrhea, and breakdown of nasal tissues. Can cause irritating redness and blisters. Arsenic trioxide can be absorbed through the skin, and can induce above symptoms. May cause irritation.