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EWG's Tap Water Database — 2021 UPDATE

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Dimethyl phthalate

Helena Water Sewer

Dimethyl phthalate is an additive used in plastics and other consumer products. As a group, phthalates are associated with hormone disruption. Read More.

Phthalates are synthetic chemicals that are added to hard plastics to make them soft and malleable. Phthalates can be found in everyday consumer products such as carpets, paints, glues, wall coverings, tablecloths, furniture upholstery, shower curtains, garden� hoses, toys, shoes, automobile upholstery, food packaging and medical products. Exposure to phthalates has been linked to respiratory health problems, asthma and allergies in infants and children, and changes in reproductive system development in baby boys. The National Toxicology Program classifies a commonly used phthalate, called di(2-ethylhexyl) phthalate or DEHP, as "reasonably anticipated to be a human carcinogen."

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND10ND
2016ND20ND
2017ND10ND
2018ND20ND
2019ND10ND

ppb = parts per billion

All test results

Date Lab ID Result
2014-08-1914233000301ND
2015-08-0615219000507ND
2016-03-0716070002601ND
2016-06-1316168007501ND
2017-08-2917242001601ND
2018-07-1718200000307ND
2018-10-2218298004207ND
2019-07-2319206006601ND