Which class of pesticides can produce the symptom shown in this photo?
Carbamates. Olive green urine has been reported following carbofuran ingestion. The discoloration is thought to be due to phenolic metabolites.
Viswanathan S, John A. Common poison, uncommon urine. Nephrology (Carlton). 2011 Aug;16(6):617-8. doi: 10.1111/j.1440-1797.2010.01422.x. PMID: 21793990.
Contributed by: Marlis Gnirke, MD and Joshua Bloom, MD PhD on behalf of the New York City Poison Control Center