Know Your Environment. Protect Your Health.

Simazine

Morrisville State College

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND30ND
2021ND30ND
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
2018-06-0706071810CND
2018-06-0706071808CND
2018-06-0706071809CND
2019-05-3005301907CND
2019-05-3005301908CND
2019-05-3005301909CND
2020-05-2105212003C SOCND
2020-05-2105212001C SOCND
2020-05-2105212002C SOCND
2021-06-0906092107CND
2021-06-0906092106CND
2021-06-0906092108CND
2022-06-0906092204CND
2022-06-0906092205CND
2022-06-0906092206CND
2023-06-21EHS2300034560SOCND