Know Your Environment. Protect Your Health.

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

Ruston Water System

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
2020ND120ND
2021N/A00N/A
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
2020-01-0710505089001ND
2020-01-1310505349008ND
2020-01-1310505349001ND
2020-01-1310505349002ND
2020-01-1310505349003ND
2020-01-1310505349004ND
2020-01-1310505349005ND
2020-01-1310505349006ND
2020-01-1310505349007ND
2020-06-2210522967001ND
2020-06-2210522967002ND
2020-12-0810542034003ND
2023-02-2710644579001ND
2023-02-2710644579002ND
2023-02-2710644579003ND
2023-02-2710644579004ND
2023-03-0610645345001ND
2023-03-0610645345002ND
2023-03-0610645345003ND
2023-03-0610645534001ND
2023-03-0610645534002ND