(CNN) — Researchers in the UK have found traces of illicit drugs, pharmaceuticals and pesticides in samples of freshwater shrimp.
A study carried out by scientists from King’s College London and the University of Suffolk tested the exposure of wildlife like freshwater shrimp to different micropollutants at 15 different sites in the county of Suffolk.
Scientists were surprised to find illicit drugs in samples in rural England, with cocaine found in all samples tested and ketamine also widespread.
“Such regular occurrence of illicit drugs in wildlife was surprising,” Leon Barron from King’s College London
We might expect to see these in urban areas such as London, but not in smaller and more rural catchments.
Researchers also found traces of fenuron, a pesticide that has long been banned in the UK, added Barron, who said that the sources of the chemical are not clear.
The full results of the study were published in the journal Environment International.
Although concentrations were low, we were able to identify compounds that might be of concern to the environment and crucially, which might pose a risk to wildlife,” said Thomas Miller from King’s College London.