Initially symptoms are temporary but can spread to the entire hand and cause permanent damage. Metalworking - Gold is the only safe metal to use. Always use metals in a well-ventilated area. Danger from gas and metal fumes include carbon monoxide poisoning from bronze and brass, metal fume fever from zinc, and nickel fumes may be fatal if inhaled and cause lung and nasal cancer. Photography - proper ventilation is required and an eyewash fountain for first aid is necessary.
Severe poisoning can occur through skin absorption.
Potassium bromide may cause systemic poisoning including somnolence, depression, lack of coordination, mental confusion, hallucinations, and skin rashes. Ingestion will cause severe poisoning or death. Immediately rinse skin and eyes with lots of water. The continual inhalation of stop bath may cause chronic bronchitis. Fix is slightly to moderately toxic and proper ventilation is necessary.