Know Your Environment. Protect Your Health.

Glyphosate

Old Westbury

Glyphosate is the weedkiller marketed as Roundup. The state of California classifies glyphosate as a chemical known to cause cancer. Read More.

Glyphosate is classified as a probable human carcinogen by the International Agency for Research on Cancer and has been linked to increased risk of non-Hodgkin’s lymphoma in people. Exposure to glyphosate during pregnancy may affect fetal development.

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND30ND
2020ND60ND
2021ND60ND
2022ND60ND
2023ND60ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 5 ppb

The EWG Health Guideline of 5 ppb for glyphosate was defined by EWG 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): 700 ppb

The legal limit for glyphosate, established in 1992, was based on a toxicity study in laboratory animals conducted in the 1980s. This limit does not account for the cancer risks of glyphosate and does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date Lab ID Result
2018-11-137070937001ND
2018-11-147071092001ND
2018-12-057072990001ND
2018-12-127073710001ND
2018-12-177074135001ND
2019-08-2870103045001ND
2019-08-2870103045002ND
2019-09-1770105239001ND
2020-09-0870144946001ND
2020-09-1470145710001ND
2020-09-2170146959001ND
2020-09-2170146593001ND
2020-09-2170146109001ND
2020-09-2170145144001ND
2021-11-1070194291001ND
2021-11-1070194291002ND
2021-11-1670194897002ND
2021-11-1670194897001ND
2021-12-0870197159001ND
2021-12-2270198899001ND
2022-11-0370235618001ND
2022-11-0470235627001ND
2022-11-1470236635001-SOCSND
2022-11-1670237102001-SOCSND
2022-11-3070238257001-SOCSND
2022-12-2170240934001-SOCSND
2023-11-0170276065001ND
2023-11-0170276065002ND
2023-11-0870276909002ND
2023-11-0870276909001ND
2023-11-2970279034002ND
2023-11-2970279034001ND