N-Nitrosodimethylamine: Difference between revisions

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'''N-Nitrosodimethylamine''' (also known as '''NDMA''') is a semi-volatile organic chemical that is highly toxic and potentially carcinogenic. It is a member of the class of nitrosamines, which are used in the manufacture of liquid rocket fuel, antioxidants, additives for lubricants, and softeners for copolymers. NDMA can also be formed unintentionally in certain chemical reactions.
{{Short description|A chemical compound and its implications in health and environment}}


== Sources and Exposure ==
==N-Nitrosodimethylamine==
[[File:Ndma_activ.svg|thumb|right|Chemical structure of N-Nitrosodimethylamine]]
'''N-Nitrosodimethylamine''' (NDMA) is a semi-volatile organic chemical that belongs to a class of compounds known as [[nitrosamines]]. It is a yellow, oily liquid with a faint characteristic odor and is soluble in water, alcohol, and other organic solvents.


NDMA is not produced commercially in the United States, except for use as a research chemical. It was formerly used in the production of rocket fuel, but this use was discontinued after high levels of the chemical were found in air, soil, and water samples collected near a rocket fuel manufacturing plant.
==Chemical Properties==
NDMA is a potent [[carcinogen]] and is known for its ability to form in both industrial and natural processes. It has the chemical formula C_H_N_O and a molecular weight of 74.08 g/mol. NDMA is sensitive to light and can degrade in the presence of ultraviolet light.


Exposure to NDMA can occur through a variety of routes, including inhalation, ingestion, and dermal contact. It can be found in a variety of consumer products, including tobacco smoke, chewing tobacco, beer, fish, cheese, and other foods. NDMA can also form during the cooking process, particularly when foods are grilled, smoked, or cured.
==Sources and Formation==
NDMA can be formed in the environment through the reaction of [[dimethylamine]] with [[nitrite]] under acidic conditions. It is also a byproduct of various industrial processes, including the manufacture of [[pesticides]], [[rubber]], and [[cosmetics]]. Additionally, NDMA can be found in trace amounts in [[tobacco smoke]], [[beer]], and [[cured meats]].


== Health Effects ==
==Health Implications==
Exposure to NDMA is a concern due to its classification as a probable human carcinogen by the [[International Agency for Research on Cancer]] (IARC). It has been linked to [[liver cancer]] and other forms of cancer in animal studies. Human exposure can occur through contaminated drinking water, food, and air.


NDMA is classified as a probable human carcinogen based on evidence from laboratory animal studies. Long-term exposure to NDMA can increase the risk of developing liver, lung, and gastrointestinal cancers. Short-term exposure can cause liver damage and other adverse health effects.
==Environmental Impact==
NDMA is persistent in the environment and can contaminate [[groundwater]] and [[surface water]]. It is resistant to conventional water treatment processes, making it a challenge for water quality management. Advanced treatment methods, such as [[activated carbon]] filtration and [[advanced oxidation processes]], are required to effectively remove NDMA from water sources.


== Regulation and Standards ==
==Regulation and Safety==
Due to its toxic nature, NDMA is regulated by various environmental and health agencies. The [[United States Environmental Protection Agency]] (EPA) has set a guideline for NDMA in drinking water, and it is monitored as part of the [[Unregulated Contaminant Monitoring Rule]].


The U.S. Environmental Protection Agency (EPA) has set a maximum contaminant level (MCL) for NDMA in drinking water at 0.0007 milligrams per liter (mg/L). The Occupational Safety and Health Administration (OSHA) has set a permissible exposure limit (PEL) for NDMA in workplace air at 1 part per million (ppm).
==Related pages==
* [[Nitrosamine]]
* [[Carcinogen]]
* [[Water pollution]]
* [[Environmental health]]


== See Also ==
[[Category:Chemical compounds]]
 
* [[Nitrosamines]]
* [[Carcinogens]]
* [[Environmental Protection Agency]]
* [[Occupational Safety and Health Administration]]
 
== References ==
 
<references />
 
{{stub}}
 
[[Category:Chemicals]]
[[Category:Carcinogens]]
[[Category:Carcinogens]]
[[Category:Environmental Health]]
[[Category:Environmental toxins]]
[[Category:Occupational Safety and Health]]

Latest revision as of 11:35, 15 February 2025

A chemical compound and its implications in health and environment


N-Nitrosodimethylamine[edit]

File:Ndma activ.svg
Chemical structure of N-Nitrosodimethylamine

N-Nitrosodimethylamine (NDMA) is a semi-volatile organic chemical that belongs to a class of compounds known as nitrosamines. It is a yellow, oily liquid with a faint characteristic odor and is soluble in water, alcohol, and other organic solvents.

Chemical Properties[edit]

NDMA is a potent carcinogen and is known for its ability to form in both industrial and natural processes. It has the chemical formula C_H_N_O and a molecular weight of 74.08 g/mol. NDMA is sensitive to light and can degrade in the presence of ultraviolet light.

Sources and Formation[edit]

NDMA can be formed in the environment through the reaction of dimethylamine with nitrite under acidic conditions. It is also a byproduct of various industrial processes, including the manufacture of pesticides, rubber, and cosmetics. Additionally, NDMA can be found in trace amounts in tobacco smoke, beer, and cured meats.

Health Implications[edit]

Exposure to NDMA is a concern due to its classification as a probable human carcinogen by the International Agency for Research on Cancer (IARC). It has been linked to liver cancer and other forms of cancer in animal studies. Human exposure can occur through contaminated drinking water, food, and air.

Environmental Impact[edit]

NDMA is persistent in the environment and can contaminate groundwater and surface water. It is resistant to conventional water treatment processes, making it a challenge for water quality management. Advanced treatment methods, such as activated carbon filtration and advanced oxidation processes, are required to effectively remove NDMA from water sources.

Regulation and Safety[edit]

Due to its toxic nature, NDMA is regulated by various environmental and health agencies. The United States Environmental Protection Agency (EPA) has set a guideline for NDMA in drinking water, and it is monitored as part of the Unregulated Contaminant Monitoring Rule.

Related pages[edit]

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