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EWG's Tap Water Database — 2021 UPDATE

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Di(2-ethylhexyl) phthalate

City of Mesa

Di(2-ethylhexyl) phthalate, or DEHP, is a softener added to PVC plastics. Phthalates are hormone disruptors that target the male reproductive system. Read More.

DEHP can cross the placenta and disrupt steroid hormone synthesis, and may lead to cancer. In laboratory animals, exposure to DEHP during pregnancy harms fetal developmental and causes abnormalities in the male reproductive tract. Human epidemiological studies show certain phthalates, especially DEHP, are associated with reduced anogenital distance in human male infants, which is a measure of adverse developmental effects in human male infants exposed prenatally to endocrine disrupting chemicals. DEHP may also interfere with signaling related to the timing of birth and may have adverse effects on the immune system.

 

65

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
2014ND20ND
2015ND310ND
2016ND20ND
2017N/A00N/A
2018ND260ND
2019ND40ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 3 ppb

The EWG Health Guideline of 3 ppb for di(2-ethylhexyl) phthalate was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

EPA Maximum Contaminant
Level (MCL) 6 ppb

The legal limit for di(2-ethylhexyl) phthalate, established in 1992, was based on analytical detection limits at the time that the standard was set.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-12201402120615SND
2014-04-14201404140044SND
2015-02-04201502050428SND
2015-02-04201502050419SND
2015-02-09201502090116SND
2015-02-09201502090114SND
2015-02-09201502090089SND
2015-02-11201502120371SND
2015-04-01201504010555SND
2015-04-07201504080340SND
2015-04-07201504080338SND
2015-04-07201504070448SND
2015-04-14201504150242SND
2015-04-14201504150237SND
2015-04-21201504220401SND
2015-04-21201504220403SND
2015-04-29201504290428SND
2015-04-29201504290425SND
2015-07-07201507070354SND
2015-07-07201507070352SND
2015-07-14201507150044SND
2015-07-21201507210313SND
2015-07-21201507210315SND
2015-10-06201510060340SND
2015-10-06201510060339SND
2015-10-062015100060338SND
2015-10-12201510130289SND
2015-10-12201510130288SND
2015-10-14201510150131SND
2015-10-19201510200134SND
2015-10-19201510200133SND
2015-10-21201510220131SND
2015-10-21201510220130SND
2016-06-08201606090223SND
2016-10-17201610180304SND
2018-02-08201802080669SND
2018-04-02201804030503SND
2018-04-03201804040820SND
2018-04-03201804040819SND
2018-04-03201804040818SND
2018-04-09201804100270SND
2018-04-09201804100269SND
2018-04-10201804111115SND
2018-04-16201804170332SND
2018-04-16201804170331SND
2018-04-17201804180563SND
2018-04-17201804180562SND
2018-04-24201804250767SND
2018-06-20201806200513SND
2018-08-07201808070334SND
2018-10-11201810110593SND
2018-10-11201810110592SND
2018-10-11201810110591SND
2018-10-16201810170428SND
2018-10-17201810170435SND
2018-10-18201810180392SND
2018-10-18201810180391SND
2018-10-22201810220265SND
2018-10-23201810230482SND
2018-10-24201810240339SND
2018-10-29201810290232SND
2019-02-0519020066ND
2019-03-1419030420ND
2019-03-1819030465ND
2019-08-2019080335ND