n Nitrosodimethylamine
n-Nitrosodimethylamine (NDMA) is a volatile organic compound that occurs in drinking water as a byproduct of disinfection using chlorine or chloramines. It was once used to produce liquid rocket fuel, antioxidants, softeners, and lubricants. NDMA is readily volatile, thus all routes of exposure (ingestion, inhalation and dermal) are relevant if one is exposed via drinking water.
EPA MCLG Level
0.000112 ppb
Maximum level that poses minimal health risk based on the latest science
Health Effects
Health protective benchmarks for NDMA have been developed based on a potential increased risk of cancer. The EPA classifies NDMA as a probable human carcinogen.
Affected Organs & Systems:
Common Sources
- NDMA is found widely in the environment and drinking water sources because it forms readily from common precursors. It often occurs at low levels in drinking water as a byproduct of disinfection using chlorine or chloramines at water treatment plants. NDMA can also result from reactions between chemicals discharged from the tanning, pesticides, rubber, fish-processing, and alkylamine-manufacturing industries.
How to Remove It
Water filters certified under the following NSF standards are effective at removing n Nitrosodimethylamine:
EPA MCLG Level
The EPA MCLG represents the maximum level that poses minimal health risk based on the latest scientific research. It's often more protective than federal legal limits.
Contaminant Type
n Nitrosodimethylamine is classified as a Disinfection Byproducts contaminant.
This contaminant primarily affects the carcinogens.
Check Your Water
Find out if n Nitrosodimethylamine is in your tap water.
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