Many Counties in Texas have switched to Chloramines in the water supply

  • Chloramine is a combination of chlorine and ammonia.
  • Chloramine is used to disinfect water supplies. Water utilities often refer to chloramine as monochloramine.
  • In reality, chloramine exist as three different forms of species: monochloramine, dichloramine and trichloramine. They are chemically related and are easily converted into each other; thus, they are more appropriately called Chloramines.
  • The three species of chloramine constantly and rapidly shift from one form to another. The species that predominates is dependent on pH, temperature, turbulence and the chlorine to ammonia ratio.
  • Even time plays a factor because after a day or so, with no changes in conditions, monochloramine in a water system will slowly degrade to form dichloramine and some trichloramine.
  • Chloramines are all respiratory irritants with trichloramine being the most toxic.
  • In contrast to what water utilities claim, it is impossible to have only monochloramine. It is not unusual in water systems for harmful di and trichloramines to occur.
  • Trihalomethanes (THMs)¬†are disinfection byproducts that are formed when organic matter in the water combines with chlorine.
  • THMs are also formed with chloramine disinfection but at a lower concentration – (approximately 1/3 less) than chlorine.
  • THMs are possible but no proven cancer causing byproducts.


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More information can be found on http://www.chlorine.org