Assignment:
Perfluorooctane Sulphonate (PFOS) - a Persistent Pollutant
Question 1. Perfluorooctane sulphonate (PFOS) is considered to be a persistent environmental pollutant, with a half life in natural water of approximately 41 years. It is resistant to hydrolysis, photolysis, and aerobic and anaerobic biodegradation. Explain why PFOS is so resistant to these processes.