Opioids and other drugs accumulating in freshwater fish

Thursday, April 16, 2026

Opioids and other drugs accumulating in freshwater fish

Waterloo News has published a feature on our recent research showing that opioids, antidepressants, and other drugs are accumulating in freshwater fish downstream of wastewater treatment plants, marking the first evidence of these substances in wild Canadian fish.

Diana Cardenas Soraca extracting samples

Dr. Diana Cardenas Soraca extracting samples in the field for opioids and other chemicals.