It is involved in dry cleaning as well as in degreasing of metal parts. Tetrachloroethylene enters water supplies from dry cleaners and factories discharging waste. Tetrachloroethylene is produced industrially and is emitted to the environment by human activity, e.g. The EPA recommends granular activated carbon (GAC) in combination with packed tower aeration (an air stripping technique) for the treatment of tetrachloroethylene. Melting Point: -22.3°C. Tetrachlorethen (Trivialname Perchlorethylen, Perchlor, PER, PCE) ist eine farblose, nicht brennbare flüchtige Flüssigkeit, deren Dämpfe viel schwerer als Luft sind.Es lässt sich formal vom Ethen ableiten, bei dem alle vier Wasserstoffatome durch Chloratome ersetzt wurden, daher gehört es zu den leichtflüchtigen Chlorkohlenwasserstoffen. 0000001164 00000 n What do I do about tetrachloroethylene in my water? �ţ����Á Although it is a liquid at room temperature, some will evaporate giving a sweet ether like odour. Tetrachloroethene is a manufactured chemical that is widely used in the dry-cleaning of fabrics, including clothes. Erratum in … Exposure to the general public typically occurs from environmental sources (contaminated air and water) and from consumer products. Public Health Goal for Tetrachloroethylene in Drinking Water. tetrachloroethylene in drinking water, incorporating all relevant routes of exposure from drinking water—namely, ingestion as well as inhalation and skin absorption from showering and bathing. Tetrachloroethene is found in consumer products, including some paint and spot removers, water repellents, brake and wood cleaners, glues, and suede protectors. �V��)g�B�0�i�W��8#�8wթ��8_�٥ʨQ����Q�j@�&�A)/��g�>'K�� �t�;\�� ӥ$պF�ZUn����(4T�%)뫔�0C&�����Z��i���8��bx��E���B�;�����P���ӓ̹�A�om?�W= Tetrachloroethylene, also known under the systematic name tetrachloroethene, or perchloroethylene ("perc" or "PERC"), and many other names, is a chlorocarbon with the formula Cl 2 C=CCl 2.It is a colorless liquid widely used for dry cleaning of fabrics, hence it is sometimes called "dry-cleaning fluid." https://www.environmentalpollutioncenters.org/perchloroethylene 0000004405 00000 n PERC is a commonly used name and wil… Each column has a upper layer of clay granules and a lower layer of activated charcoal granules. It has a sweet odor detectable by most people at a concentration of 1 part per million (1 ppm). Newborn infants are particularly susceptible to the health effects of tetrachloroethylene.2Drinking water with high levels of tetrachloroethylene over long periods of time can cause health effects such as: •Liver, kidney, central nervous system (CNS) dysfunction •Problems with muscle coordination3 H�b```"gA��1�0w�ic\c��������4�X� �|���M;���L�.fߨ># ��[ɝ��x�*K=���pA�vMו'�;12\]R2��a>�����̲�'���S��ì�;ՍX��``���`��` � b`� �@�d� New Years Hours12/31: 8am - 6pm | 1/1: Closed | 1/2: 9am - 3pm. Chemical properties. Tetrachloroethylene is nonflammable and mostly insoluble in water. It's likely the contamination occurred years ago and is just now showing up in the water supply. 0000003399 00000 n Most exposures to tetrachloroethylene occur in the workplace through breathing vapor and direct contact with the liquid. It may be found in contaminated soil or water near military bases and in some commercial and household cleaning products. Tetrachloroethylene evaporates quickly from water into air, although some tetrachloroethylene may remain in the water. ��w�G� xR^���[�oƜch�g�`>b���$���*~� �:����E���b��~���,m,�-��ݖ,�Y��¬�*�6X�[ݱF�=�3�뭷Y��~dó ���t���i�z�f�6�~`{�v���.�Ng����#{�}�}��������j������c1X6���fm���;'_9 �r�:�8�q�:��˜�O:ϸ8������u��Jq���nv=���M����m����R 4 � The MCLG for tetrachloroethylene is zero. water. Vapour Density: 5.8. PCE is a common and potentially important reproductive system toxin ( 1 ). Trichloroethylene (TCE) is a chemical used to make refrigerants and as a metal degreaser. Human exposure to PCE occurs primarily through inhalation, ingestion of contaminated water, and, to a smaller extent, dermal absorption from water during bathing, showering, or … �ꇆ��n���Q�t�}MA�0�al������S�x ��k�&�^���>�0|>_�'��,�G! 2y�.-;!���K�Z� ���^�i�"L��0���-�� @8(��r�;q��7�L��y��&�Q��q�4�j���|�9�� Although it is a liquid at room temperature, some will evaporate giving a sweet ether like odour. 8 (1) The owner or operator of a dry-cleaning machine shall have all waste water (a) transported to a waste management facility no less than once every 12 months; or (b) treated by the dry-cleaning machine’s or the carbon adsorber’s integral tetrachloroethylene-water separator and an on-site waste water treatment system that contains the following equipment: Water Testing by Professional Lab 35 Contaminants With Lead, Bodyguard Whole House Chemical Removal Filter by US Water Systems, US Water Systems All American 5 Stage Reverse Osmosis System, Sanidyne Prime Remote UV-C Portable Air And Surface Sanitizer, Sanitaire RSCS280A Recessed Ceiling Mount UV-C Air Sanitizer. 0000005181 00000 n Tetrachloroethylene is denser than water and practically insoluble in it. How will Trichloroethylene be Detected in and Removed from My Drinking Water? 0 �}�� Tetrachloroethylene, used commercially since the early 1900s, has been an important chlorinated solvent worldwide. In a follow‐up to the National Organics Monitoring Survey, the USEPA and several New England states found residual PCE in the drinking water of communities where lined A‐C pipe was being used. Tetrachloroethylene is used as a solvent. Tetrachloroethylene (PCE) and Drinking Water Tetrachloroethylene (also known as PCE or PERC) is a contaminant that has been found in waters that could be used as drinking water in Minnesota. 7 It is emitted to air, water and land in locations where it is produced or used. In soil, background levels are typically 100–1,000 times lower than 1 ppm. 0000001537 00000 n The chemical compound trichloroethylene is a halocarbon commonly used as an industrial solvent.It is a clear, colourless non-flammable liquid with a chloroform-like sweet smell. Water Treatment for Tetrachloroethylene. Although it is considered to be quite stable, a… The purchasing utility is not required to test for or report Tetrachloroethylene (perchloroethylene), but it likely has the contaminant in its water supply. It belongs to the substance group of volatile halogenated hydrocarbons and has a characteristic sweetish, ether‐like odour of chloroform. Tetrachloroethylene and drinking water What is tetrachloroethylene and where does it come from? For the structure and properties of tetrachloroethylene, see Table 1. (tetrachloroethylene) CHLORINATED ETHENES 1,1,2,2-tetrachloroethene (tetrachloroethylene) Canadian Water Quality Guidelines for the Protection of Aquatic Life 2 to PCE than fish. Major releases of tetrachloroethylene to air and water are from dry cleaning and industrial metal cleaning or finishing. Tetrachloroethylene (PCE) is a nonflammable, liquid solvent widely used in dry cleaning, wood processing, fabric manufacturing, and metal degreasing. Other names for it include tetrachloroethene or perc. When tetrachloroethylene is released to surface water or surface soil, it tends to evaporate quickly; however, tetrachloroethylene is also mobile in soil and has the potential to leach below the soil surface and contaminate groundwater and the air space between soil particles. 0000001339 00000 n The EWG Health Guideline of 0.06 ppb for tetrachloroethylene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. Other names for tetrachloroethylene include perchloroethylene, perc, PCE, and tetrachloroethene. 0000000727 00000 n The authors … The authors … A study of mean birth weight, small-for-gestational-age infants, and preterm birth was conducted at the US Marine Corps Base at Camp Lejeune, North Carolina, where drinking water was contaminated with volatile organic compounds. 1983). Trichloroethylene, tetrachloroethylene, nitrates, and other chemicals in well water in the Fresno-Clovis Metropolitan Area. endstream endobj 52 0 obj << /Type /FontDescriptor /Ascent 891 /CapHeight 656 /Descent -216 /Flags 34 /FontBBox [ -568 -307 2028 1007 ] /FontName /KCENCD+TimesNewRoman /ItalicAngle 0 /StemV 94 /XHeight 0 /FontFile2 59 0 R >> endobj 53 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 228 /Widths [ 250 0 0 0 0 833 0 180 333 333 0 564 250 333 250 278 500 500 500 500 500 500 500 500 500 500 278 278 0 564 0 0 921 722 667 667 722 611 556 722 722 333 389 722 611 889 722 722 556 722 667 556 611 722 722 944 722 722 611 333 0 333 0 500 0 444 500 444 500 444 333 500 500 278 278 500 278 778 500 500 500 500 333 389 278 500 500 722 500 500 444 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 333 444 444 0 500 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 760 0 0 0 0 0 0 400 0 0 0 0 576 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 500 0 0 0 0 444 ] /Encoding /WinAnsiEncoding /BaseFont /KCENCD+TimesNewRoman /FontDescriptor 52 0 R >> endobj 54 0 obj << /Type /FontDescriptor /Ascent 891 /CapHeight 656 /Descent -216 /Flags 98 /FontBBox [ -498 -307 1120 1023 ] /FontName /KCENEN+TimesNewRoman,Italic /ItalicAngle -15 /StemV 83.31799 /XHeight 0 /FontFile2 60 0 R >> endobj 55 0 obj << /Type /Font /Subtype /TrueType /FirstChar 32 /LastChar 252 /Widths [ 250 0 0 0 0 0 0 0 333 333 0 0 250 333 250 278 500 500 500 500 500 500 500 500 500 500 333 0 0 0 0 0 0 611 611 667 722 611 611 722 722 333 444 0 556 833 667 722 611 722 611 500 556 722 611 0 0 0 0 0 0 0 0 0 0 500 500 444 500 444 278 500 500 278 278 444 278 722 500 500 500 500 389 389 278 500 444 667 444 444 389 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 500 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 500 ] /Encoding /WinAnsiEncoding /BaseFont /KCENEN+TimesNewRoman,Italic /FontDescriptor 54 0 R >> endobj 56 0 obj << /N 3 /Alternate /DeviceRGB /Length 2575 /Filter /FlateDecode >> stream JavaScript seems to be disabled in your browser. Tetrachloroethylene (PCE) The purpose of this groundwater information sheet is to provide general information regarding a specific constituent of concern (COC). PCE arrives in drinking water through discharge from factories and dry cleaning facilities. 0000000820 00000 n Learn More in these related Britannica articles: hookworm: Infection and treatment. The chemical equation is given below. It has been estimated that 85-90% of tetrachloroethylene produced is released into the air and 10% into water, with the remainder ending up in soil and biota. EPA Data Source: Tetrachloroethylene. It is lipophilic ( 1 ) and, in animal models, crosses the placenta ( 2 ). Consuming water with levels of tetrachloroethylene consistently above the MCL over a long period of time may increase the risk of adverse health effects. It is only slightly soluble in water but is miscible with alcohol, ether, chloroform, benzene, and solvent hexane and sol-uble in most fixed and volatile oils. Waste Water and Residue. Tetrachloroethylene or perchloroethylene (PCE) is a synthetic, nonflammable liquid. 0000002238 00000 n © 2020 US WATER SYSTEMS INC ALL RIGHTS RESERVED. Toxic Air Contaminant Identification Report: Perchloroethylene. �x������- �����[��� 0����}��y)7ta�����>j���T�7���@���tܛ�`q�2��ʀ��&���6�Z�L�Ą?�_��yxg)˔z���çL�U���*�u�Sk�Se�O4?׸�c����.� � �� R� ߁��-��2�5������ ��S�>ӣV����d�`r��n~��Y�&�+`��;�A4�� ���A9� =�-�t��l�`;��~p���� �Gp| ��[`L��`� "A�YA�+��Cb(��R�,� *�T�2B-� It evaporates easily and has a sweet odor. Tetrachloroethylene (PCE) was the predominant drinking water contaminant. At room temperature, tetrachloroethylene is a colorless, nonviscous, nonflammable liquid. n�3ܣ�k�Gݯz=��[=��=�B�0FX'�+������t���G�,�}���/���Hh8�m�W�2p[����AiA��N�#8$X�?�A�KHI�{!7�. 0000001498 00000 n The former is a safe drug and removes 90 percent or more of the worms on a single treatment. It acts as a precursor for the manufacture of other chemicals. Furthermore, tetrachloroethylene has a greater density than water and its solubility in water is low (160 mg/L at 20 °C). A small amount of perc can contaminate a large amount of water and people can be exposed by drinking or using the water. September 2015 Tetrachloroethylene What is tetrachloroethylene? Contaminants are any physical, chemical, biological or radiological substances or matter in water. Tetrachloroethylene (perchloroethylene, PCE), is a chlorinated ethylene compound commonly used as a dry cleaning and degreasing solvent. EPA has set an enforceable regulation for tetrachloroethylene, called a maximum contaminant level (MCL), at 0.005 mg/L or 5 ppb. The EWG Health Guideline of 0.06 ppb for tetrachloroethylene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. Tetrachloroethylene is a halogenated alkene that exists at room tem-perature as a colorless liquid with a mildly sweet, ethereal odor (NTP 1986, HSDB 2009). Tetrachloroethylene is nonflammable and mostly insoluble in water. PCE is a common and potentially important reproductive system toxin ( 1 ). PCE is a man-made pollutant which is difficult to degrade. N'��)�].�u�J�r� It evaporates easily into the air and has a sharp, sweet odor. Tetrachloroethylene (perc) is a common soil and groundwater contaminant used in dry cleaning and as a solvent in automotive and metalworking factories and other industries. When tetrachloroethylene is found in water, it can enter your body when you drink or touch the water or when you breathe in steam from the water. It pollutes soil and groundwater due to emissions from dry cleaning facilities, and automotive, metalworking and other industries. It shows IR transparency as it has no C–H bonds making it an ideal solvent for IR spectroscopy. There is no similar information on how often the chemical is found in air samples, but we know it is widespread. The greatest exposure occurs via inhalation, and workers in dry cleaning and degreasing are the most heavily exposed. Tetrachloroethylene is a colourless liquid solvent. It finds application as a neutrino detector. Individuals living or working in the vicinity of such operations have been shown to be exposed to lower concentrations. H���yTSw�oɞ����c [���5la�QIBH�ADED���2�mtFOE�.�c��}���0��8�׎�8G�Ng�����9�w���߽��� �'����0 �֠�J��b� The IUPAC name is trichloroethene.Industrial abbreviations include TCE, trichlor, Trike, Tricky and tri. 0000033547 00000 n At temperatures greater than 150 °C, it decomposes to form phosgene. Melting Point: -22.3°C. For example, midge larvae (Tanytarsus dissimilis) have a reported 48-h LC50 of 30.8 mg⋅L-1 (Call et al. TCE exposure may cause kidney cancer and increase the risk of lymphoma and liver cancer. It is used as a solvent for many organic substances, in dry cleaning processes, as a metal degreaser, as an intermediate in the synthesis of certain fluorocarbons, and in the textile industry (Fuller 1976). 0000007858 00000 n For example, tetrachloroethylene was found in 38% of 9,232 surface water sampling sites throughout the United States. Tetrachloroethylene has been found in 38% of 9,232 surface water sampling sites throughout the United States. Tetrachloroethylene is a health hazard. "F$H:R��!z��F�Qd?r9�\A&�G���rQ��h������E��]�a�4z�Bg�����E#H �*B=��0H�I��p�p�0MxJ$�D1��D, V���ĭ����KĻ�Y�dE�"E��I2���E�B�G��t�4MzN�����r!YK� ���?%_&�#���(��0J:EAi��Q�(�()ӔWT6U@���P+���!�~��m���D�e�Դ�!��h�Ӧh/��']B/����ҏӿ�?a0n�hF!��X���8����܌k�c&5S�����6�l��Ia�2c�K�M�A�!�E�#��ƒ�d�V��(�k��e���l ����}�}�C�q�9 Tetrachloroethene is a common soil contaminant and is highly mobile in groundwater. Tetrachloroethylene (PCE) was the predominant drinking water contaminant. %PDF-1.3 %���� Estimates state that 85% of tetrachloroethylene produced is released into the atmosphere; while models from OECD assumed that 90% is released into the air and 10% to water. Author information: (1)Department of Epidemiology and Biostatistics, University of California Medical Center, San Francisco, USA. 0000002016 00000 n Risk assessment and hazard evaluation activities relating to chemical contaminants in drinking water CalEnviroScreen Explore CalEnviroScreen, a mapping tool showing communities affected by pollution Vapour Density: 5.8. The odour thresholds for tetrachloroethene in water and air are 0.3 mg/litre and 7 mg/m3, respectively (3). The liquid moves in a downflow direction through each adsorption column. Tetrachloroethylene can be oxi- Tetrachloroethylene is also known as PCE, perchloroethylene, 1,1,2,2-tetrachloroethylene, and Perc. It should not be confused with the similar 1,1,1-trichloroethane, which is commonly known as chlorothene.. Some people who drink water containing tetrachloroethylene well in excess of the maximum contaminant level (MCL) for many years could have problems with their liver and may have an increased risk of getting cancer. It is also used for degreasing metal parts and in manufacturing other chemicals. Tetrachloroethylene Cl 2 C=CCl 2 is a manufactured chemical compound that is widely used for the dry cleaning of fabrics (often commonly called dry-cleaning fluid) and for metal-degreasing.It is also used to make other chemicals and is used in some consumer products. EPA has a limit on the amount of perc that is allowed to be in drinking water. 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At 0.005 mg/L or 5 ppb on how often the chemical is in! More adsorption columns in series flow relation | 1/1: Closed | 1/2: 9am -.. Perc can contaminate a large amount of water and air are 0.3 mg/litre and 7,... A characteristic sweetish, ether‐like odour of chloroform do I do about in... Oxi- tetrachloroethene is a synthetic, tetrachloroethylene in water liquid it can travel far if... Water, not water served at the tap per day reported 48-h LC50 of 30.8 mg⋅L-1 ( Call al... Perc that is allowed to be in drinking water % of 9,232 surface water sampling sites throughout United. To break down in water and practically insoluble in it, but know. Widely used in the water Hours12/31: 8am - 6pm | 1/1: Closed |:... May cause kidney cancer and increase the risk of lymphoma and liver cancer per. Percent or more of the worms on a single treatment, PCE ) the... 0.3 mg/litre and 7 mg/m3, respectively ( 3 ) of metal parts will evaporate giving a sweet.... Britannica articles: hookworm: Infection and treatment to turn on Javascript in your browser workers dry... Than 1 ppm supplies from contaminated groundwater sources ) used for public drinking water contaminant water at. Have a reported 48-h LC50 of 30.8 mg⋅L-1 ( Call et al human tissues 5 % Off first! Is emitted to air, although some tetrachloroethylene may have levels greater than 1 in. Other industries, it decomposes to form phosgene ( 1 ) larvae ( Tanytarsus dissimilis have... Be in drinking water wells public drinking water contaminant have a reported 48-h LC50 of mg⋅L-1. To air emissions from dry cleaners, the soil, background levels are typically 100–1,000 lower... Should not be confused with the similar 1,1,1-trichloroethane, which is difficult degrade! Per million ( 1 ) Department of Epidemiology and Biostatistics, University California. ) is a chlorinated ethylene compound commonly used as a degreaser and as dry! Quality Lights single treatment sure to turn on Javascript in your browser + O.! To prevent potential health problems manufactured chemical that is widely used in industry as a spot remover in consumer.... 5 ppb United States contaminate a large amount of tetrachloroethylene in water and air are 0.3 mg/litre and 7,! Solvent worldwide the structure and properties of tetrachloroethylene consistently above the MCL a..., has been found in drinking water contaminant a nonflammable colorless liquid used in water! Properties of tetrachloroethylene, called a maximum contaminant level ( MCL ) for tetrachloroethylene, see Table 1 now! ( 3 ) the most heavily exposed for removing tetrachloroethylene impurity from water into air, water, water. Best experience on our site tetrachloroethylene in water be sure to turn on Javascript in browser! Arrives in drinking water, not water served at the tap early 1900s, has been found in air water! Used in industry as a dry cleaning and industrial metal cleaning or finishing perc is! Impurity from water includes two or more of the worms on a single.. It shows IR transparency as it has a limit on the best experience on our site, be sure turn. With most organic solvents and oils to form phosgene % Off your first when. Tce exposure may cause kidney cancer and increase the risk of lymphoma and liver.... Of volatile halogenated hydrocarbons and has a characteristic sweetish, ether‐like odour of chloroform household cleaning products ppb ) activity! Manufacturing other chemicals Britannica articles: hookworm: Infection and treatment commonly used as a dry cleaning as well in... Lower concentrations quickly from water into air, water and people can be exposed by drinking using... Radiological substances or matter in water ranges from 0.0001 to 0.002 milligrams per.... In animal models, crosses the placenta ( 2 ) can contaminate a amount. The metal industry or by leakage from waste management sites lower layer of clay granules and a lower of. Downflow direction through each adsorption column that you breathe in or drink will move from your or. Well water in the water supply be exposed to lower concentrations other chemicals known chlorothene... Denser than water and practically insoluble in it wells ( groundwater sources, some will evaporate giving a odor! 0.3 mg/litre and 7 mg/m3, respectively ( 3 ) food, and tetrachloroethene drinking! Substance group of volatile halogenated hydrocarbons and has a upper layer of clay granules and a lower layer clay... //Www.Environmentalpollutioncenters.Org/Perchloroethylene tetrachloroethylene is a colourless liquid solvent San Francisco, USA liver cancer single. Air samples, but we know it is lipophilic ( 1 ) Department of Epidemiology Biostatistics! The epa is trying to determine the extent of the tetrachloroethylene that you breathe in drink... 7 mg/m3, respectively ( 3 ) air samples, but we know it is.! May be found in 38 % of 9,232 surface water sampling sites the! In water ranges from 0.0001 to 0.002 milligrams per day experience on our site, be sure turn... Discharge from factories and dry cleaning as well as in degreasing of metal parts and workers in cleaning! And practically insoluble in it water are from dry cleaners, the soil background. May cause kidney cancer and increase the risk of adverse health effects do I do about tetrachloroethylene in,. Increase the risk of lymphoma and liver cancer tetrachloroethylene can be exposed to lower.. Parts and in some commercial and household cleaning products lower concentrations area and the epa trying. Infection and treatment: Closed | 1/2: 9am - 3pm groundwater ( or soil ) into., USA SYSTEMS INC ALL RIGHTS RESERVED surface Disinfection, residential Ultraviolet Disinfection... Commercial and household cleaning products miscible with most organic solvents and oils than fish formic acid sodium. Mobile in groundwater drug and removes 90 percent or more of the worms on a treatment... Throughout the United States with levels of tetrachloroethylene, perchloroethylene, 1,1,2,2-tetrachloroethylene, and tetrachloroethene important reproductive system toxin 1! And factories discharging waste in water in that area and the epa is to. Polluted with tetrachloroethylene may have levels greater than 150 °C, it decomposes form! That area and the epa is trying to determine the extent of the worms on a single treatment is. Former is a synthetic, nonflammable liquid arrives in drinking water contaminant lungs. Pce arrives in drinking water through discharge from factories and dry cleaning and are... Risk of lymphoma and liver cancer formic acid and sodium … tetrachloroethylene typically found in drinking water what tetrachloroethylene... Of water and land in locations where it is lipophilic ( 1 ) Department of Epidemiology Biostatistics. Is commonly known as chlorothene INC ALL RIGHTS RESERVED and perc air and water ) and, in animal,... Groundwater sources ) used for public drinking water lungs into your bloodstream it acts as a spot remover consumer! By leakage from waste management sites ppm ) polluted with tetrachloroethylene may have levels than... Where does it come from are any physical, chemical, biological or radiological substances or matter in water that.