AMAP Core project 2018-2020 is a continuation of previous project which was initiated in 1994. The programme is a monitoring programme of contaminant concentrations in Greenland animals with the objective to follow the temporal trends. The programme includes also screening of contaminants of emergent concerns of selected samples and in some cases retrospective studies of such compounds. Monitoring of temporal trends of effects and biomarkers in samples of polar bears is also included.