In 1978 after Ph. D. studies in Uppsala, Dr. Niklas Johansson came to the Swedish EPA. His first position at the agency was connected to planning and funding of research within the area of "Toxicology and health effects". He was, as scientific secretary and person reporting on a case, responsible for initiation and follow up of research programmes within toxicology and health effects funded by the agency. In parallel, to this he also acted as research coordinator within a number of different programs e.g. "Drinking water quality and human health", "Systems for testing and hazard evaluation of chemicals", "Systems for Early Warning in Environmental Medicine" and two programmes focussed on human and environmental health effects of POPs. At the research department he also had the position as head of the unit for health effects. In 1998 he moved from the research department to the department for Environmental Assessment. Today, he is mainly focussing on POPs and international cooperation. To mention a few examples: within LRTAP-POPs, he is one of the two Swedish representatives mainly focussing on new chemicals to be proposed for inclusion in the protocol. For the Stockholm Convention he is (in cooperation with the Chemicals Agency) dealing with similar items but is also involved in the National Implementation Plans. He also acts as Swedish representative in a number of Arctic programmes and was until last year chairing an ACAP project on identification and remediation of dioxin sources in Russia. In parallel to his activities at SEPA, he has had on-going research at the Karolinska Institute since the early 1990s when he began to explore the possibilities of using multivariate statistics to identify crucial associations between exposure and effects. He also took part in studies on the effects of dioxins and dioxin-like compounds on cell communication and the formation of pre neoplastic foci in different systems. His work was often focussed on experimental design (based on multivariate statistics) and evaluation of the results. During the last few years he has been engaged in a project more focussed on human exposure of different POPs and BPA. In cooperation with Annika Hanberg and others, he has performed a study on human exposure to PCBs in indoor air. He will leave SEPA during 2014 and continue his work as an environmental consultant.