Trihalomethane in Public Water

Trihalomethanes (THM’s) are chemical compounds that show up in different forms such as chloroform, bromodichloromethane, dibromochloromethane, and bromoform.  THM’s are considered carcinogenic (having potential to cause cancer).  They are created when chlorine reacts with natural occurring organic and inorganic materials in the water.  The risks associated with exposure to THM’s are liver, kidney and central nervous system problems, some people will experience anemia.  Furthermore, some studies report an assocation between THM’s and adverse birth outcomes.

The MCL (Maximum Containment Level) is set at 80 ppb (parts per billion) which “considers cost, benefits and the ability of public water systems to detect and remove contaminants using suitable treatment technologies.”  Anything that is measured in parts per billion shows how important of a contaminant this is to monitor.  The MCLG (Maximum Containment Level Goal) has been set at zero for both bromodichloromethane and bromoform, which is the level that the EPA believes to pose no risk.

According to EPA,a government website, THMs can be controlled by reducing the chlorine in the local water source.  Unfortunately, chlorine cannot be entirely eliminated from the water system because chlorine is used to kill bacteria and viruses that can casue serious illnesses or death.  How do I get thihalomethanes out of my water you may ask?  You cannot boil the THM out of the water, exposure to heat can actually increase the THM formations.  Furthermore, THM vapors can be inhaled in the shower and absorbed through the skin while bathing.  Our drinking water will ensure the THM’s are as close to zero as possible in the water you consume.  We are able to accomplish this with the high grade of coconut shell carbon that we use in our carbon filters which provide the greatest possible contact time for treatment.  Our reverse osmosis unit has carbon filters so it would provide a viable reduction in THM’s for a drinking water system. 

Until next time at ‘Crystalcleandrinkingwater Blog’!!!

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