Fish (burbot, Lota lota) have been collected by community members since 1985, with annual collections commencing in 1999 to 2017-19, and analysed for contaminants. Mercury was analyzed from muscle and liver tissues using CVAAS while PCBs were assessed in liver tissues using GC-ECD. Trends were somewhat stable from 1985 to 1998, but increased markedly for several PCBs and for mercury (Hg). Coupled with a nearby lake sediment core and climate data, our fish data show that it appears likely that climate change is affecting how these contaminants cycle, with ecological processes/biogeochemical cycles more important than atmospheric sources.