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EWG's Tap Water Database — 2021 UPDATE

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2,3,7,8-TCDD (Dioxin)

Bethpage WD

Dioxins are contaminants released from chemical manufacturing, pulp and paper bleaching, and incineration of products that contain chlorine. 2,3,7,8-Tetrachlorodibenzodioxin (2,3,7,8-TCDD) is the most toxic chemical in the group of dioxins. Read More.

Dioxins are among the most toxic known environmental pollutants. As a class, dioxins are extremely toxic, persistent and bioaccumulative; these contaminants build up and are stored in fatty tissues and fluids, such as breast milk, and pass from the mother to the child. Most people are exposed to dioxins through the food they eat, primarily from meat, dairy, fish and eggs. In humans, dioxins are associated with cancer, birth defects, damage to the nervous and immune systems, altered metabolism, thyroid disruption, altered menstrual cycling and damage to the cardiovascular system.

 

38

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
2014N/A00N/A
2015ND120ND
2016ND90ND
2017N/A00N/A
2018ND90ND
2019ND80ND

ppt = parts per trillion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.0002 ppt

The EWG Health Guideline of 0.0002 ppt for 2,3,7,8-TCDD 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) 0.03 ppt

ppt = parts per trillion

All test results

Date Lab ID Result
2015-03-231503F55-001ND
2015-04-091504634-001ND
2015-06-081506620-002ND
2015-06-081506620-001ND
2015-06-091506727-001ND
2015-06-091506768-001ND
2015-06-09156727-002ND
2015-06-091506768-002ND
2015-06-101506874-001ND
2015-06-101506849-001ND
2015-07-011507016-001ND
2015-10-021510136-001ND
2016-04-011604038-002ND
2016-04-011604038-001ND
2016-06-091606933-002ND
2016-06-091606993-001ND
2016-06-091606933-003ND
2016-06-101606A06-002ND
2016-06-101606A06-001ND
2016-06-101606A77-002ND
2016-06-101606A77-001ND
2018-02-067042094003ND
2018-02-067042094009ND
2018-02-067042094008ND
2018-02-067042094002ND
2018-02-067042094007ND
2018-02-067042094001ND
2018-02-067042094004ND
2018-02-067042094006ND
2018-02-067042094005ND
2019-09-1670105002002ND
2019-09-1670105002003ND
2019-09-1670105002001ND
2019-09-1670105002004ND
2019-09-1670105002007ND
2019-09-1670105002006ND
2019-09-1670105002005ND
2019-09-2070105818001ND