Know Your Environment. Protect Your Health.

Simazine

City of Sansom Park

Simazine is a hormone-disrupting herbicide related to atrazine. It affects the male and female reproductive systems. In studies of laboratory animals, simazine increases blood levels of estrogen, decreases prolactin and progesterone, and causes mammary and ovarian tumors.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND10ND
2020ND10ND
2021ND80ND
2022ND30ND
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for simazine was defined by EWG based on epidemiological studies of human exposure to atrazine in drinking water. This health guideline protects against harm to the developing fetus, harm to the reproductive system and hormone disruption.

EPA Maximum Contaminant
Level (MCL): 4 ppb

The legal limit for simazine, established in 1992, was based on toxicity studies in laboratory animals conducted in the 1980s. This limit does not fully protect against harm to the reproductive system, harm to the developing fetus, and hormone disruption.

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-28Q1812846012ND
2018-03-28Q1812846013ND
2018-03-28Q1812846014ND
2018-03-28Q1812846015ND
2018-03-28Q1812846011ND
2018-10-25Q1842722003ND
2019-05-02Q1918146001ND
2020-01-21Q2002279017ND
2021-03-09Q2106121003ND
2021-03-09Q2106121006ND
2021-03-09Q2106121005ND
2021-03-09Q2106121004ND
2021-03-09Q2106121002ND
2021-03-09Q2106121001ND
2021-09-14Q2124999001ND
2021-11-15Q2131782001ND
2022-03-14Q2208529001ND
2022-05-05Q2213616006ND
2022-10-13Q2231074023ND
2023-08-15Q2334087020ND