Skin or Sense Organ Toxicants
Exposure to chemical substances can cause adverse effects on skin or the sense organs (Skin or Sense Organ Toxicity). The sense of smell is impaired by exposure to cadmium and nickel. Hearing loss occurs after occupational exposure to lead. Exposure to gases like ammonia, chlorine, and formaldehyde causes eye irritation; organic solvents can damage vision. Contact with toxic agents can also cause acute and chronic skin diseases, including dermatitis and photosensitization. Chloracne is a severe and unusual form of acne that can be triggered by exposure to certain halogenated aromatic compounds, such as polychlorinated dibenzo-furans and dioxins.