Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Di(2-ethylhexyl) phthalate

City of South Houston

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.

 

33

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND50ND
2013ND50ND
2014ND50ND
2015ND70ND
2016ND60ND
2017ND50ND

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
2012-02-06AB80276ND
2012-02-06AB80275ND
2012-02-06AB80271ND
2012-02-06AB80274ND
2012-02-06AB80267ND
2013-01-14AC07648ND
2013-01-14AC07649ND
2013-01-14AC07650ND
2013-01-14AC07644ND
2013-01-14AC07647ND
2014-01-14AC38903ND
2014-01-14AC38904ND
2014-01-14AC38908ND
2014-01-14AC38906ND
2014-01-14AC38905ND
2015-01-21AC77137ND
2015-01-21AC77131ND
2015-01-21AC77136ND
2015-01-21AC77129ND
2015-01-21AC77130ND
2015-09-15AD07180ND
2015-10-06AD09652ND
2016-01-14AD18395ND
2016-01-14AD18382ND
2016-01-14AD18385ND
2016-01-14AD18388ND
2016-01-14AD18391ND
2016-04-08AD32661ND
2017-01-06AD63756ND
2017-02-10AD70495ND
2017-03-01AD72880ND
2017-03-01AD72881ND
2017-03-01AD72879ND