Where It Comes From
Aquatic plant control in lakes, ponds, canals; crop desiccation. Breaks down in water within days and is not expected to build up in fish [1][2].
How You Are Exposed
Drinking or using surface water soon after treatment; swimming or water play in treated areas; handling/applying products; spray drift [1][2][3].
Why It Matters
Can cause eye/skin burns and stomach irritation, nausea, vomiting, and diarrhea if swallowed; very high doses harmed organs in animals. Not expected to cause cancer based on available studies [1][2].
Who Is at Risk
Applicators and nearby workers; people who draw household water from treated lakes/canals; children and pets in treated water soon after application [1][2].
How to Lower Your Exposure
Follow posted treatment notices and label waiting periods for drinking, swimming, irrigation, or livestock water; avoid treated areas until allowed; use protective gear when handling; if using surface water for home supply, confirm safety or use an alternate source [1][2][3].
References
- [1]ATSDR. ToxFAQs for Endothall.
- [2]U.S. EPA. Reregistration Eligibility Decision (RED) for Endothall, 2005.
- [3]CDC/NIOSH. Pocket Guide to Chemical Hazards: Endothall.