Know Your Environment. Protect Your Health.

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

Arizona Water Company - Sierra Vista

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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND140ND
2019N/A00N/A
2020N/A00N/A
2021ND140ND
2022N/A00N/A
2023N/A00N/A

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
2018-01-23201802080309SBND
2018-01-23201802080309SCND
2018-01-23201802080309SDND
2018-01-23201802080314SAND
2018-01-23201802080314SBND
2018-01-23201802080314SCND
2018-01-23201802080309SAND
2018-07-25201807250660SCND
2018-07-25201807250663SCND
2018-07-25201807250663SBND
2018-07-25201807250663SAND
2018-07-25201807250660SDND
2018-07-25201807250660SBND
2018-07-25201807250660SAND
2021-05-2021E2311-01 SOCND
2021-05-2021E2311-07SOCND
2021-05-2021E2311-06SOCND
2021-05-2021E2311-05SOCND
2021-05-2021E2311-04 SOCND
2021-05-2021E2311-03 SOCND
2021-05-2021E2311-02 SOCND
2021-11-1621K2237-01ND
2021-11-1621K2237-02ND
2021-11-1621K2237-03ND
2021-11-1721K2431-01ND
2021-11-1721K2431-02ND
2021-11-1721K2431-03ND
2021-11-1721K2431-04ND