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EWG's Tap Water Database — 2021 UPDATE

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

New York American Water - Lynbrook

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.

 

122

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND310ND
2016ND310ND
2017ND10ND
2018ND270ND
2019ND290ND

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
2014-03-1224786401ND
2014-04-1724477701ND
2014-07-1524477101ND
2015-01-1428013501ND
2015-01-1528012101ND
2015-01-2128012701ND
2015-01-3028013101ND
2015-02-1928172501ND
2015-02-2428172001ND
2015-02-2628171701ND
2015-03-0328172301ND
2015-03-25283697ND
2015-03-31283695ND
2015-04-06289112ND
2015-04-22287131ND
2015-04-27287147ND
2015-04-2828714301ND
2015-05-0828903601ND
2015-05-2929746301ND
2015-06-08297462ND
2015-06-1829172901ND
2015-06-25291741ND
2015-07-2229610301ND
2015-07-28296109ND
2015-07-2829992401ND
2015-08-0729937801ND
2015-08-19299370ND
2015-08-28299373ND
2015-09-01301277ND
2015-09-08299376ND
2015-09-15296113ND
2015-11-09306835ND
2015-11-17310372ND
2015-12-16303817ND
2016-03-0131554401ND
2016-03-1631672301ND
2016-03-2331554701ND
2016-03-2931555001ND
2016-04-1931785101ND
2016-04-2131786601ND
2016-04-2831787201ND
2016-05-1232046001ND
2016-05-1832046201ND
2016-05-2432045701ND
2016-05-2732045401ND
2016-06-1432436001ND
2016-06-2732437601ND
2016-07-1932784001ND
2016-07-2032783401ND
2016-08-0333046701ND
2016-08-2233045901ND
2016-08-2333046501ND
2016-08-2333046201ND
2016-09-1433324001ND
2016-09-2033321801ND
2016-09-2333322401ND
2016-09-2833322101ND
2016-10-2033593301ND
2016-10-2133592701ND
2016-10-2533592101ND
2016-10-3133591501ND
2016-11-1433839901ND
2016-11-1433840201ND
2016-11-1733840501ND
2016-11-1833840701ND
2017-02-1334387901ND
2018-01-1838295101ND
2018-01-2338291801ND
2018-01-2638292401ND
2018-02-0238679901ND
2018-02-0738679601ND
2018-02-0738680201ND
2018-02-0938679301ND
2018-02-2339145801ND
2018-03-0738910001ND
2018-04-1639220101ND
2018-04-2039221501ND
2018-04-3039220301ND
2018-05-1039535101ND
2018-06-1439535701ND
2018-07-1339536101ND
2018-07-1840615601ND
2018-07-1940330301ND
2018-07-2540328701ND
2018-07-2640331101ND
2018-08-0140696701ND
2018-08-1740696101ND
2018-08-1740696301ND
2018-08-2340696501ND
2018-08-2340329501ND
2018-08-2739945801ND
2018-08-2739947001ND
2018-10-0441553001ND
2019-02-0842955701ND
2019-03-0143352001ND
2019-03-0143351901ND
2019-03-0642955501ND
2019-03-0842955801ND
2019-03-1442956601ND
2019-03-1842602201ND
2019-03-1942602801ND
2019-03-2541164401ND
2019-03-2541164701ND
2019-03-2642603401ND
2019-04-0243353601ND
2019-04-0843354601ND
2019-04-0943357401ND
2019-04-2243353501ND
2019-06-0543364801ND
2019-06-1143364701ND
2019-06-1943363601ND
2019-07-1743368601ND
2019-07-2243365101ND
2019-07-2443366201ND
2019-09-0946135401ND
2019-09-3046311501ND
2019-10-0146961501ND
2019-10-2146962501ND
2019-11-2047293801ND
2019-12-0947293401ND
2019-12-1647293701ND
2019-12-1846311401ND