The aim of the project is to clarify whether there is a need to provide additional requirements for the approval of offshore chemicals that are being used / discharged into arctic sea areas in Greenland, including requirements for tests where the deterioration of offshore chemicals is investigated by arctic conditions and with arctic bacteria, as well as that bioaccumulation and / or toxicity should be investigated on organisms eg high-arctic watercourses. The project will illustrate the decomposition, bioaccumulation and toxicity of chemicals with water and organisms collected in high-arctic areas and investigated under high-arctic conditions.The project's results seek to strengthen the basis for environmental assessment underlying the use and disposal of offshore chemicals in Arctic waters.