Know Your Environment. Protect Your Health.

2,4-D

City of Pilot Point

2,4-D (2,4-dichlorophenoxyacetic acid) is a herbicide that can be applied directly to GMO corn and soy plants engineered to withstand this toxic chemical. Americans' exposures to 2,4-D from food and drinking water will likely increase in years to come as farmers plant more of these GMO crops. Read More.

2,4-D is an endocrine disruptor that interferes with thyroid hormones. The International Agency for Research on Cancer classifies 2,4-D as possibly carcinogenic to humans. In occupational studies, farmers exposed to 2,4-D tended to have higher incidences of damaged and malformed sperm. Laboratory animals exposed to 2,4-D during gestation are born underdeveloped and are more likely to have birth defects.

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND30ND
2020ND70ND
2021N/A00N/A
2022N/A00N/A
2023ND70ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 20 ppb

The EWG Health Guideline of 20 ppb for 2,4-D was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.

EPA Maximum Contaminant
Level (MCL): 70 ppb

The legal limit for 2,4-D, established in 1991, was based on toxicity studies in laboratory animals conducted in the 1980s. This limit may not fully protect against harm to the nervous system, harm to the thyroid, and hormone disruption.

ppb = parts per billion

All test results

Date Lab ID Result
2019-05-30Q1930236016ND
2019-08-08Q1953061002ND
2019-10-24Q1973669007ND
2020-01-16Q2001732038ND
2020-01-16Q2001732037ND
2020-01-16Q2001732036ND
2020-01-16Q2001732035ND
2020-01-16Q2001732034ND
2020-01-16Q2001732033ND
2020-05-11Q2018213009ND
2023-08-16Q2334321007ND
2023-08-16Q2334321008ND
2023-08-16Q2334321009ND
2023-11-06Q2347478002ND
2023-11-06Q2347478019ND
2023-11-06Q2347478020ND
2023-11-06Q2347803004ND