A long term leak of mercaptan can pose risks to the environment as well as humans and animals. Mercaptan is highly soluable in water and as such is easily absorbed by rocks, which may offer potential for underground water contamination. Mercaptans irritate the breathing system and experts state that bronchitis can result, nausea, headaches and vomiting. Cyanosis can occur in those who are directly working with larger concentrated doses. Liver and kidney disease has been reported in experimental animals that were exposed to high concentrations.
