


Cleo Lisa Davie-Martin
Dr. Cleo Davie-Martin works as a scientist at NILU, posted in Tromsø, Norway.
She has a PhD in Environmental and Analytical Chemistry from the University of Otago, which focused on volatilization processes affecting the local- and global-scale distribution of semi-volatile organic contaminants, including pesticides and brominated flame retardants.
Her subsequent work has focused on the bioremediation of polycyclic aromatic hydrocarbons in contaminated soils, as well as biogenic emissions of volatile organic compounds from Arctic tundra/permafrost and marine ecosystems.
Cleo has a strong background in analytical method development and quantification across a range of contaminant classes and environmental matrices. She has worked extensively with thermal desorption, gas chromatography-mass spectrometry, and proton-transfer-reaction mass spectrometry techniques.
At NILU, Cleo is involved with several environmental monitoring projects, as well as digitalization and database-related development and reporting.

Natascha Schmidt
Dr. Natascha Schmidt is a senior scientist at NILU in Tromsø, Norway.
She studied terrestrial and marine ecology and did her PhD in environmental chemistry at the Aix-Marseille University in Southern France. There she worked on the occurrence, transport and fate of microplastics and associated organic contaminants in the marine environment.
Dr. Schmidt is an expert in microplastic research, with a current focus on atmospheric measurements. She is also working on understanding the dynamics of tire wear particles and associated organic contaminants in the environment. Disseminating scientific knowledge to the public, stakeholders and governmental representatives and among the scientific community is one of her priorities.

Mikael Harju
Dr. Mikael Harju's core competence lies in environmental analytical chemistry, with a main focus on studying and reducing organic pollutants in Arctic and sub-Arctic ecosystems.
As a researcher at NILU in Tromsø, he is driven by a desire to develop advanced, reliable methods for detection, quantification and assessment of persistent organic pollutants (POPs) and new environmental pollutants. His work is specifically aimed at understanding how these pollutants interact with biotic and abiotic components of vulnerable ecosystems, where cold climates and unique ecological factors can influence how the pollutants are dispersed and decomposed.
Throughout his career, he has specialized in improving analytical methods for sensitive matrices, such as fish and other biological material, to deliver data that is essential for environmental monitoring and risk assessments. His goal is not only to improve analytical precision, but also to contribute to public health and environmental policy through sound science. He is motivated by the opportunity to combine applied chemistry with ecosystem conservation efforts, and to protect these important areas and their communities from long-term pollution problems.

Ingjerd Sunde Krogseth
Dr. Ingjerd S. Krogseth is a senior scientist in the Department of Environmental Chemistry and Health Effects at NILU, as well as an adjunct professor at UiT – The Arctic University of Norway. She is located in the Fram Centre in Tromsø.
Krogseth conducts research on how organic contaminants behave in the environment and food chains, motivated by a desire to protect the environment, ecosystems, and humans from harmful compounds. She is particularly interested in new environmental contaminants that are still unregulated, in order to contribute to a sound scientific basis for decision-making for national and international environmental authorities. Another focus area is how ongoing climate change affects the fate of organic contaminants in the environment and ecosystems.
Krogseth works extensively with the development, evaluation and application of contaminant models for ecosystems and food chains. These models are used in combination with actual measurements from the environment to understand more about how the contaminants are transported to and end up in organisms and food chains. She is particularly interested in organic contaminants in Arctic ecosystems, and she works closely with biologists and ecotoxicologists at other institutions in the Fram Centre through the Fram Centre's research programmes.

Vladimir A. Nikiforov
Vladimir Nikiforov is a synthetic organic, organofluorine and physical organic chemist by background. In addition, he has 30+ years of experience in environmental chemistry with emphasis on trace organic analytical chemistry.
His key expertise and research interest are: QSAR, PFAS, NTS, SVOC, suspect screening, microplastic, synthesis of standards, method development, GC, LC, MS, NMR, Fate model, transformation products, reactivity of organic molecules, transformation kinetics, transformation reactivity, transformation persistency, UV-compounds, tire additives, air sampling, air monitoring, Arctic pollution, derivatization method, structure elucidation, international regulation, and chemical education.
Silje Winnem
Silje Winnem is the administration coordinator in the Department of Environmental Chemistry and Health Effects at NILU. She is located in The Fram Centre in Tromsø.
As administrative coordinator, Winnem is responsible for all the administrative work and plays a key role in tying together the various disciplines and departments into one business. She is an active partner and facilitator, and is systematic, service-minded, responsible and proactive.
She is also a member of the User Committee at The Fram Centre, where NILU in Tromsø is located, and is active in the collaboration between the other 20 institutions in the building.

Eldbjørg Sofie Heimstad
Dr. Eldbjørg Sofie Heimstad is Research Director at NILU's office at The Fram Centre.
Heimstad holds a Ph.D. degree in physical chemistry from the University of Tromsø from 1996 and started the same year as a researcher at NILU. She has had many projects that have investigated the behaviour and potential harmful effects of pollutants in animals and ecosystems, both using theoretical and experimental methods.
Heimstad has over 25 years of experience with environmental chemistry research and collaboration in The Fram Centre, where she was head of the flagship programme 'Environmental toxins – effects on ecosystems and health' for 10 years. She was chair of the Research Leadership Group in the period 2019-2023 and representative of FLG in the Steering Group at The Fram Centre in the period 2021-2023.
A strong motivation for Heimstad is how the results of research can provide useful knowledge for the policy makers, business and society, and how we can best collaborate across different disciplines and sectors to make use of the best knowledge.

Dorte Herzke
Dr Dorte Herzke is a senior scientist at the Arctic environment section in NILU’s Department of Environmental Chemistry and Health Effects located at Kjeller.
Herzke has a long-standing experience in development of analytical methods for determination of persistent organic pollutants as POPs, PFAS, microplastic and additives in environmental samples.
She has substantial expertise in biomonitoring and human exposure to environmental contaminants as well as conducting research on the fate of contaminants in the environment and the contribution to environmental and human exposure.
Herzke has been coordinating national and international research projects as well as acting as an adviser to national authorities. Contributing to the acceleration of our understanding on the drivers and impact of environmental pollution, in order to identify robust solutions, is one of her main motivations in her research.