Know Your Environment. Protect Your Health.

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

Tangipahoa Parish Water District

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.

 

21

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019N/A00N/A
2020ND70ND
2021ND50ND
2022N/A00N/A
2023ND90ND

ppt = parts per trillion

State, National, and Health Guidelines for Drinking Water

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
2020-03-0210510960003ND
2020-11-1610540300002ND
2020-11-1610540300003ND
2020-11-1610540300004ND
2020-11-1610540300005ND
2020-11-1610540300006ND
2020-11-1610540300001ND
2021-11-0110586892004ND
2021-11-0110586892005ND
2021-11-0110586892003ND
2021-11-0110586892002ND
2021-11-0110586892001ND
2023-03-2810647726001ND
2023-09-1810669736001ND
2023-10-2510674223001ND
2023-10-2510674223002ND
2023-11-0610675829001ND
2023-11-0610675829002ND
2023-11-0610675829003ND
2023-11-0610675829004ND
2023-11-0610675829005ND