Know Your Environment. Protect Your Health.

Carbon tetrachloride

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Carbon tetrachloride, a volatile carcinogenic solvent, has been used in industrial chemical production and as a dry cleaning ingredient. Read More.

Carbon tetrachloride is no longer permitted in products intended for home use in the U.S. In the past, it was widely used as a dry cleaning ingredient, fire extinguishing chemical, pesticide and chemical intermediate for manufacturing refrigerants. Carbon tetrachloride does not break down easily and can remain in groundwater for years. In addition to increasing cancer risk, carbon tetrachloride harms the liver and causes central nervous system depression, irregular heart rate, and kidney damage. Maternal exposure to carbon tetrachloride in drinking water has been associated with a risk of birth defects.

Click here to read more about carcinogenic VOCs.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND40ND
2020ND30ND
2021ND40ND
2022ND40ND
2023ND40ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for carbon tetrachloride 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. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL): 5 ppb

The legal limit for carbon tetrachloride, established in 1987, was based on analytical detection limits at the time that the standard was set. This limit does not fully protect against the risk of cancer due to carbon tetrachloride exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-14371423001ND
2018-05-29385147001ND
2018-08-22403173001ND
2018-10-23199879ND
2019-03-20436653001ND
2019-06-24453752001ND
2019-08-19464655001ND
2019-12-18487030001ND
2020-05-121188026ND
2020-09-241219644ND
2020-10-211225956ND
2021-01-281238946ND
2021-04-191250918ND
2021-09-011276129ND
2021-11-081289483ND
2022-03-145040671AND
2022-04-055040801AND
2022-07-2652025291ND
2022-10-1152036553ND
2023-03-2353012772ND
2023-05-1053019602ND
2023-07-1953028169ND
2023-10-0453038727ND