 Levels of chloramines and other volatile compounds in water can be minimized by reducing contaminants that lead to their formation (e.g., urea, creatinine, amino acids and personal care products) as well as by use of non-chlorine "shock oxidizers" such as potassium peroxymonosulfate.Medium pressure UV technology is used to control the level of chloramines in indoor pools.It is also used as a secondary form of disinfection to address chlorine tolerant pathogens.