Where It Comes From
Broad-use weed control in agriculture, forestry, and landscaping; breaks down to AMPA; binds to soil but can reach surface waters after applications [1].
How You Are Exposed
Eating foods with small residues (generally within regulatory limits) [2][4]; skin contact or inhaling spray when mixing/applying; drift if nearby; contact with treated plants/soil before it dries [1][2].
Why It Matters
Short-term exposure can irritate eyes/skin and upset the stomach if swallowed [1]. IARC classifies glyphosate as “probably carcinogenic,” while EPA concludes it is “not likely to be carcinogenic” at typical exposures [2][3]. Animal studies report liver and kidney effects at higher doses [1].
Who Is at Risk
Farmers, groundskeepers, and pesticide applicators; people living near treated fields or rights-of-way; children who play on recently treated areas [1][2].
How to Lower Your Exposure
Follow label directions and use gloves/eye protection; avoid drift and stay out of treated areas until dry or the re-entry interval has passed; wash hands and work clothes after use; wash/rinse fruits and vegetables [1][2][4].
References
- [1]ATSDR. Toxicological Profile for Glyphosate (Draft). 2020.
- [2]U.S. EPA. Glyphosate—Interim Registration Review Decision. 2020.
- [3]IARC Monograph 112. Glyphosate. 2015.
- [4]WHO/FAO JMPR. Evaluation of glyphosate. 2016.