Know Your Environment. Protect Your Health.

Simazine

City of Taneytown

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019N/A00N/A
2020ND70ND
2021N/A00N/A
2022N/A00N/A
2023ND70ND

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
2018-06-20E18004568001ND
2020-03-03E20002987001ND
2020-05-05E20003476001ND
2020-05-05E20003479001ND
2020-05-05E20003480001ND
2020-09-16E21000742001ND
2020-09-16E21000743001ND
2020-09-16E21000752001ND
2023-03-21E2300223103ND
2023-03-21E2300223603ND
2023-03-21E2300223703ND
2023-05-23E2300281501ND
2023-05-23E2300281601ND
2023-05-23E2300281701ND
2023-05-23E2300281801ND