A recent study reveals that DDT, a pesticide sprayed on New Brunswick forests between 1952 and 1968, is still present in brook trout.
Researchers found DDT concentrations in trout from several lakes exceeding Canadian ecological guidelines for wildlife health. The study highlights the persistence of this legacy pollutant in the environment.
The research underscores the long-term impact of past pesticide use on aquatic ecosystems and food webs.
While DDT levels exceed wildlife guidelines, human consumption guidelines are much higher, according to New Brunswick's Department of Health. Residents are advised to follow provincial fish consumption limits.