Know Your Environment. Protect Your Health.

Di(2-ethylhexyl) phthalate

City of Mountain Home

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.

 

47

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND70ND
2020N/A00N/A
20210.127 ppb131ND - 1.65 ppb
20220.0514 ppb211ND - 1.08 ppb
20230.212 ppb51ND - 1.06 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-08-01S1836908ND
2019-06-11S1927642ND
2019-06-11S1927641ND
2019-07-25S1936441ND
2019-07-25S1936442ND
2019-07-25S1936443ND
2019-07-25S1936446ND
2019-12-03S1960165ND
2021-09-09S2147367ND
2021-09-09S2147369ND
2021-09-09S2147371ND
2021-09-22S2150231ND
2021-10-14S2155146ND
2021-10-20S2156403ND
2021-10-20S2156402ND
2021-10-20S21564081.65 ppb
2021-10-20S2156405ND
2021-10-20S2156404ND
2021-10-20S2156401ND
2021-10-20S2156406ND
2021-10-20S2156407ND
2022-02-24S22091721.08 ppb
2022-02-24S2209174ND
2022-02-24S2209169ND
2022-02-24S2209171ND
2022-02-24S2209173ND
2022-04-11S2216734ND
2022-05-11S2222518ND
2022-05-11S2222541ND
2022-06-06SMCF0683-05ND
2022-06-16S2228826ND
2022-07-20S2234918ND
2022-07-20S2234917ND
2022-10-19S2252298ND
2022-10-19S2252291ND
2022-10-19S2252293ND
2022-10-19S2252294ND
2022-10-19S2252295ND
2022-10-19S2252296ND
2022-10-19S2252297ND
2022-10-19S2252299ND
2022-12-22S2262455ND
2023-03-21SMDC0635-011.06 ppb
2023-06-21S2312390-01ND
2023-07-26S2315497-01ND
2023-08-30S2318585-01ND
2023-12-21S2327284-01ND