Copper Sulfate

Copper sulfate is a naturally occurring pesticide and can be found in plants, soil, food, and water. It is a combination of sulfur and copper. Copper is an essential nutrient for humans, animals, and plants. Organisms need copper for their normal function and adjust their internal environment to keep copper levels steady. Too much copper sulfate can damage the skin, affect the stomach and intestines, and irritate the respiratory tract. Freshwater fish and invertebrates are very sensitive to copper. Copper sulfate is an herbicide, bactericide, and fungicide for control of fungi, algae, roots, and bacteria.

Information about Copper Sulfate

• What is copper sulfate?
• What are some products that contain copper sulfate?
• How does copper sulfate work?
• How might I be exposed to copper sulfate?
• What are some signs and symptoms from a brief exposure to copper sulfate?
• What happens to copper sulfate when it enter the body?
• Is copper sulfate likely to contribute to the development of cancer?
• Has anyone studied non-cancer effects from long-term exposure to copper sulfate?
• Are children more sensitive to copper sulfate than adults?
• What happens to copper sulfate in the environment?
• Can copper sulfate affect birds, fish, and other wildlife?

Copper Sulfate Fact Sheet (Web | PDF)

How can I remove pesticides from fruits and vegetables? (FAQ | Video)

Pesticides and Water Resources

If you have questions about this, or any pesticide-related topic, please call NPIC at 1-800-858-7378 (8:00am - 12:00pm PST), or email at npic@ace.orst.edu.