Although copper is a trace metal that naturally occurs in plants and animals, it does not occur in copper sulphate, which can irritate the stomach when consumed. Since crops and agriculture are cleaned after treatment with copper sulphate since it primarily adheres to soil sediments, there is little risk of ingesting it from a treated crop.
You might be exposed to Copper Sulfate if you use it in gardening or farming. When absorbed through the skin or eyes, copper sulphate can sting or burn. This can irritate the cornea and result in eczema, conjunctivitis, inflammation, or fluid buildup if it gets into the eyes.