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EWG's Tap Water Database — 2021 UPDATE

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Ethylbenzene

City of Tucson

Ethylbenzene, a component of petroleum, is a volatile cancer-causing chemical primarily used for production of plastics and rubber. Ethylbenzene is also released from gasoline fuel emissions. Read More.

In animal studies, exposure to ethylbenzene causes tumors. Ethylbenzene can also damage lungs, liver, kidneys and the nervous system. The International Agency for Research on Cancer classifies ethylbenzene as “possibly carcinogenic to humans.”

MORE ABOUT THIS CONTAMINANT

 

258

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND70ND
2015ND70ND
2016ND1170ND
2017ND90ND
2018ND80ND
2019ND1100ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 300 ppb

The EWG Health Guideline of 300 ppb for ethylbenzene 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 harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 700 ppb

The legal limit for ethylbenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1950s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-21L140047-01ND
2014-04-09L140417-01ND
2014-04-09L140418-01ND
2014-04-16L140450-03ND
2014-07-09L140809-02ND
2014-08-12L140973-13ND
2014-11-18L141360-13ND
2015-02-10L150184-01VND
2015-04-14L150434-02ND
2015-04-27L150516-04ND
2015-04-30L150518-05ND
2015-07-28L150906-01ND
2015-08-25L151011-01ND
2015-11-17L151339-01ND
2016-01-11L160042-01ND
2016-01-11L160042-03ND
2016-01-11L160042-04ND
2016-01-12L160043-01ND
2016-01-12L160043-02ND
2016-01-12L160043-03ND
2016-01-12L160043-04ND
2016-01-12L160043-05ND
2016-01-13L160045-01ND
2016-01-13L160045-02ND
2016-01-13L160045-04ND
2016-01-13L160045-05ND
2016-01-14L160046-01ND
2016-01-14L160046-03ND
2016-01-14L160046-04ND
2016-01-14L160046-05ND
2016-01-19L160066-01ND
2016-01-19L160066-02ND
2016-01-19L160066-03ND
2016-01-19L160066-05ND
2016-01-20L160068-01ND
2016-01-20L160068-02ND
2016-01-20L160068-03ND
2016-01-20L160068-04ND
2016-01-20L160068-05ND
2016-01-21L160069-01ND
2016-01-21L160069-02ND
2016-01-21L160069-03ND
2016-01-21L160069-04ND
2016-01-21L160069-05ND
2016-01-25L160091-01ND
2016-01-25L160091-02ND
2016-01-25L160091-03ND
2016-01-25L160091-04ND
2016-01-25L160091-05ND
2016-01-26L160092-01ND
2016-01-26L160092-02ND
2016-01-26L160092-03ND
2016-01-26L160092-04ND
2016-01-26L160092-05ND
2016-01-27L160094-01ND
2016-01-27L160094-02ND
2016-01-27L160094-04ND
2016-01-27L160094-05ND
2016-01-28L160104-03ND
2016-01-28L160104-04ND
2016-01-28L160104-05ND
2016-01-28L160118-01VND
2016-02-01L160119-01VND
2016-02-01L160119-03ND
2016-02-01L160119-04VND
2016-02-02L160122-01VND
2016-02-02L160122-02VND
2016-02-02L160122-03ND
2016-02-02L160122-04VND
2016-02-02L160122-05VND
2016-02-03L160123-01ND
2016-02-03L160123-04ND
2016-02-04L160125-01ND
2016-02-04L160125-02ND
2016-02-04L160125-03ND
2016-02-04L160125-04ND
2016-02-08L160143-02ND
2016-02-08L160143-03ND
2016-02-08L160143-05ND
2016-02-09L160144-02ND
2016-02-09L160144-03ND
2016-02-09L160144-05ND
2016-02-10L160145-03ND
2016-02-10L160145-04ND
2016-02-10L160145-05ND
2016-02-11L160148-02ND
2016-02-11L160148-04ND
2016-02-11L160148-05ND
2016-02-11L160171-01ND
2016-02-16L160172-03VND
2016-02-16L160172-04ND
2016-02-17L160173-01ND
2016-02-17L160173-02ND
2016-02-18L160178-04VND
2016-02-19L160196-01ND
2016-02-19L160196-02ND
2016-02-19L160196-03ND
2016-02-23L160210-01VND
2016-02-23L160210-02VND
2016-02-23L160210-03VND
2016-02-24L160211-01ND
2016-02-24L160211-02ND
2016-02-24L160211-03ND
2016-02-25L160212-03VND
2016-02-29L160245-01VND
2016-02-29L160245-02VND
2016-03-01L160246-03ND
2016-03-02L160247-01VND
2016-03-07L160268-02ND
2016-03-10L160280-01ND
2016-03-10L160280-02ND
2016-03-10L160280-03ND
2016-04-19L160455-01ND
2016-04-20L160468-01VND
2016-04-27L160497-01ND
2016-04-27L160497-03ND
2016-04-27L160497-04ND
2016-04-28L160498-02ND
2016-04-28L160498-03ND
2016-05-05L160525-02VND
2016-05-31L160656-01ND
2016-05-31L160656-02ND
2016-06-14L160697-01ND
2016-06-16L160723-01ND
2016-07-20L160867-04ND
2016-07-26L160900-05ND
2016-08-09L160966-05ND
2016-08-30L161082-04ND
2016-10-04L161215-05ND
2016-10-05L161216-04ND
2016-10-12L161229-01ND
2017-01-19L170054-03VND
2017-02-14L170197-01ND
2017-02-27L170267-01ND
2017-04-03L170450-04ND
2017-04-04L170451-03ND
2017-07-31L170993-03ND
2017-10-02L171300-04ND
2017-11-22L171522-01ND
2017-11-22L171522-02ND
2018-01-22L180089-01ND
2018-01-23L180090-01ND
2018-02-01L180128-06ND
2018-02-08L180170-01VOCND
2018-05-30L180728-02ND
2018-05-30L180728-04 VOCND
2018-09-19L181264-01ND
2018-10-30L181454-01 VOCND
2019-03-19L190423-01ND
2019-04-01L190499-02-06131ND
2019-04-01L190499-03-06131ND
2019-04-01L190499-05-06131ND
2019-04-01L190499-06-06131ND
2019-04-04L190541-01-06131ND
2019-04-11L190512-01-06131ND
2019-04-11L190512-02-06131ND
2019-04-11L190512-03-06131ND
2019-04-11L190512-04-06131ND
2019-04-15L190597-01-06131ND
2019-04-15L190597-02-06131ND
2019-04-15L190597-03-06131ND
2019-04-15L190597-04-06131ND
2019-04-17L190610-01-06131ND
2019-04-17L190610-03-06131ND
2019-04-18L190624-01-06131ND
2019-04-18L190624-02-06131ND
2019-04-18L190624-03-06131ND
2019-04-23L190640-01-06131ND
2019-04-23L190640-02-06131ND
2019-04-23L190640-03-06131ND
2019-04-23L190640-04-06131ND
2019-04-24L190645-01-14130ND
2019-04-24L190645-02-14130ND
2019-04-24L190645-03-14130ND
2019-04-25L190648-01-14130ND
2019-04-25L190648-02-14130ND
2019-04-25L190648-03-14130ND
2019-04-30L190670-01-14130ND
2019-04-30L190670-02-14130ND
2019-04-30L190670-03-14130ND
2019-05-01L190678-02-14130ND
2019-05-01L190678-03-14130ND
2019-05-01L190678-04-14130ND
2019-05-02L190690-01-14130ND
2019-05-02L190690-02-14130ND
2019-05-02L190690-03-14130ND
2019-05-06L190704-03-14130ND
2019-05-07L190712-01-14130ND
2019-05-07L190712-02-14130ND
2019-05-07L190712-03-14130ND
2019-05-08L190725-01-14130ND
2019-05-08L190725-02-14130ND
2019-05-09L190728-01-20121ND
2019-05-13L190741-01-20121ND
2019-05-13L190741-02-20121ND
2019-05-14L190748-01-20121ND
2019-05-14L190748-01-20140ND
2019-05-14L190748-02-20121ND
2019-05-15L190761-01-20121ND
2019-05-15L190761-02-20121ND
2019-05-15L190761-03-20121ND
2019-05-16L190767-01-20121ND
2019-05-20L190783-02-20121ND
2019-05-20L190783-03-20121ND
2019-05-28L190813-01-06260ND
2019-05-28L190813-02-06260ND
2019-05-28L190813-03-06260ND
2019-05-28L190813-04-06260ND
2019-05-30L190835-01-06260ND
2019-05-30L190835-02-06260ND
2019-05-30L190835-03-06260ND
2019-05-30L190835-04-06260ND
2019-05-30L190835-05-06260ND
2019-05-30L190835-06-06260ND
2019-06-03L190837-01-06260ND
2019-06-03L190837-02-06260ND
2019-06-03L190837-03-06260ND
2019-06-03L190837-04-06260ND
2019-06-03L190837-05-06260ND
2019-06-04L190851-01-06260ND
2019-06-04L190851-03-06260ND
2019-06-04L190851-04-06260ND
2019-06-04L190851-05-06260ND
2019-06-06L190879-01-06260ND
2019-06-06L190879-02-06260ND
2019-06-06L190879-03-06260ND
2019-06-06L190879-04-06260ND
2019-06-06L190879-05-06260ND
2019-06-11L190893-01-06260ND
2019-06-11L190893-02-06260ND
2019-06-11L190893-03-06260ND
2019-06-11L190893-04-06260ND
2019-06-12L190903-01-06281ND
2019-06-13L190907-01-06281ND
2019-06-13L190907-02-06281ND
2019-06-13L190907-03-06281ND
2019-06-13L190907-04-06281ND
2019-06-25L190968-01-06281ND
2019-06-27L190983-01-08131ND
2019-08-20L191266-01-10020ND
2019-08-20L191266-02-10020ND
2019-08-22L191282-01-10020ND
2019-08-22L191282-02-10020ND
2019-09-09L191400-01-10020ND
2019-09-09L191400-02-10020ND
2019-09-10L191408-01-10020ND
2019-09-10L191408-02-10020ND
2019-09-10L191409-01-10020ND
2019-09-11L191425-02-10020ND
2019-09-11L191425-03-10020ND
2019-09-12L191433-01-10020ND
2019-09-12L191433-02-10020ND
2019-09-12L191433-03-10020ND
2019-09-16L191452-01-10020ND
2019-11-08L191758-01-01071ND
2019-11-13L191783-02-01071ND
2019-11-19L191822-01-01071ND
2019-11-20L191829-01-01071ND