Advanced Screening of Emerging Environmental Contaminants in Food Chains
Department of Water and Environment Doctoral Program: Environmental Analysis with focus on Environmental Chemistry Description of the Doctoral Project: This doctoral project aims to increase understanding of emerging environmental contaminants (CECs) in food chains by using bioaccumulation and trophic transfer as strategies for chemical prioritization. The project will investigate how contaminants are transported from the environment to organisms and further through food chains, and how these processes can be used to identify substances relevant to ecosystems and One Health. The project will focus on one or several selected food chain systems depending on sample availability, collaborations, and scientific relevance. The project includes: i) selection of relevant food chain systems, biological matrices, and emerging environmental contaminants based on occurrence data, chemical properties, bioaccumulation potential, and available samples; ii) application of targeted analysis, suspect screening, and non-target screening with LC-HRMS to identify known and previously unknown substances in selected biological matrices; iii) evaluation of bioaccumulation, biomagnification, and trophic transfer patterns where appropriate data and samples are available; iv) use of samples from environmental sample banks, where available, to investigate temporal trends and enable retrospective screening; and v) linking of measured chemical patterns to potential environmental sources. You will work in an international and interdisciplinary research team. The project provides access to advanced instrumentation and training in data analysis, scientific communication, and international research collaboration. Main Responsibilities: We are seeking a doctoral student who wants to contribute to increased knowledge about emerging environmental contaminants in food chains, with particular focus on bioaccumulation, trophic transfer, and advanced chemical screening. To achieve this goal, you will develop and apply analytical workflows for detection and identification of both known and previously unknown substances in complex biological matrices. The work includes, among other things, sample preparation, extraction, and development of purification strategies for biological samples. The project will also include semiquantitative analysis of identified substances as well as evaluation of bioaccumulation, biomagnification, and trophic transfer patterns in selected food chain systems. When appropriate samples are available, material from environmental sample banks can be used to investigate temporal trends and conduct retrospective screening. Work tasks also include preparation of biological and environmental samples, extraction and analysis of target substances and unknown compounds, processing of large HRMS datasets, data analysis, statistical evaluation, interpretation of chemical patterns in relation to environmental sources, collaboration with national and international partners, and authoring of scientific articles in English. Qualifications Required: Basic eligibility is held by those who have completed a degree at an advanced level, completed course requirements of at least 240 credits, of which at least 60 credits at an advanced level, or who in another way within or outside the country have acquired essentially equivalent knowledge (Swedish Higher Education Ordinance, ch. 7 § 39). Special eligibility for admission to doctoral studies in Environmental Analysis with focus on Environmental Chemistry is held by those with knowledge in aquatic ecology, aquatic biogeochemistry, statistics, or ecotoxicology. The undergraduate education should include an independent project. Additionally, you are required to have knowledge of English equivalent to a passing grade in English B/6 from Swedish upper secondary school. Your Background: Applicants should have a master's degree in analytical chemistry, environmental chemistry, chemistry, ecotoxicology, environmental science, food science, or equivalent. Specialization in chemical analysis of organic contaminants and experience with LC-MS, LC-HRMS, GC-MS, or other advanced mass spectrometric techniques is meritorious. Experience with suspect screening and non-target screening workflows is particularly desirable. Previous experience with chemical analytical laboratory work, particularly with complex biological, food, biota, soil, or sediment matrices, is an advantage. Knowledge of emerging environmental contaminants, bioaccumulation, biomagnification, trophic transfer, or time series analysis is considered meritorious. Skills in data processing using statistical computation, visualization, and data analysis tools (such as R, Python, or similar) are also meritorious. Great emphasis is also placed on personal qualities such as good collaboration skills, analytical and problem-solving abilities, accuracy, motivation, and the ability to work both independently and in collaboration with others. Read more here: https://www.slu.se/om-slu/jobba-pa-slu/lediga-jobb/doktorand3/ Employment Form and Salary: Employment as a doctoral student (4-year program). Salary for the doctoral student position follows a local collective agreement with fixed salary steps. Scope: 100% Location: Uppsala Start Date: By agreement. Application and Selection: Welcome to submit your application via the application button below no later than August 28, 2026. Swedish University of Agricultural Sciences (SLU) has a key role in developing sustainable life, grounded in science and education. Through our focus on the interactions between humans, animals, and ecosystems and responsible stewardship of natural resources, we contribute to sustainable societal development and good living conditions on our planet. The main locations are Alnarp, Umeå, and Uppsala, but operations are also conducted at research stations, experimental parks, and educational sites throughout the country. SLU has over 4,000 employees, 6,000 students and doctoral students, and a turnover of over 4.5 billion SEK. The university is committed to creating attractive environments on its campus areas. We work for an equal and inclusive working environment where open dialogue between people with different experiences forms the foundation for scholarship, creativity, and development. We therefore welcome people with different backgrounds and perspectives to apply for this position.
Assessing human exposure to emerging contaminants using high-resolution MS
Department of Aquatic Sciences and Assessment Third-cycle subject area Environmental assessment, specialising in environmental chemistry Description of the doctoral project This doctoral project aims to develop an analytically robust strategy to identify, measure and interpret contaminants of emerging concern relevant for water-related human exposure. The project will use existing information from pan-European monitoring campaigns stored in the NORMAN chemical occurrence database to identify substances that may occur in water resources and contribute to human exposure. Based on this evidence, the doctoral student will develop and validate analytical methodologies for selected emerging substances and apply them to water-related samples collected at national or international level. The results will be interpreted using hazard, exposure and risk indicators to support the prioritisation of substances for future monitoring. In addition, suspect and non-target screening will be applied to reveal novel compounds that may contribute to early-warning systems for emerging chemical risks. The project includes i) selecting contaminants of emerging concern re-using European monitoring data and their chemical properties; ii) developing and validating an LC-HRMS-based target method for emerging substances; iii) applying the method to water-related samples (drinking water, precipitation); iv) comparing LC-HRMS with LC-MS/MS for selected compounds to assess sensitivity, linearity, precision and suitability for monitoring; and v) interpreting the results in relation to human exposure You will work in an international, interdisciplinary team. The project provides access to advanced instrumentation and training in data analysis, scientific communication, and collaborative research. About the position We are seeking a PhD student who will advance the understanding of contaminants of emerging concern in water-related pathways of human exposure, with a particular focus on analytical method development and high-resolution mass spectrometry. To achieve this aim, you will develop and apply analytical workflows for the determination of selected emerging substances in water-related samples collected at national or international level. The selection of substances will be guided by existing information. Central to the project is the use of liquid chromatography coupled with high-resolution mass spectrometry (LC-HRMS) for sensitive and reliable chemical analysis. Analysis of polar substances may require the use of specialised LC columns. The project may also include comparison with LC-MS/MS for selected compounds to assess sensitivity, linearity, precision and suitability for monitoring. Selected samples may be processed using effect-directed analysis (EDA) to link chemical presence with biological effects. The duties also include sample preparation, extraction and analysis of contaminants, processing of HRMS datasets, quality assurance, data analysis, visualisation and interpretation of results using hazard, exposure and risk indicators, collaboration with national and international partners, and scientific manuscript writing in English. Requirements To meet the general entry requirements you must have been awarded a second-cycle (Master's) qualification, satisfied the requirements for courses comprising at least 240 credits of which at least 60 credits were awarded in the second-cycle, or acquired substantially equivalent knowledge in some other way in Sweden or abroad (Higher Education Ordinance 1993:100, Chapter 7, Section 39). Specific entry requirements for the third-cycle courses and study programme in environmental assessment, specialising in environmental chemistry. To meet the specific entry requirements, you must have knowledge of aquatic ecology, aquatic biogeochemistry, statistics or ecotoxicology. The undergraduate degree must include a degree project. You must also meet the equivalent English language requirements as those necessary for the Swedish upper-secondary qualification Engelska B/6. Your profile Applicants shall hold an MSc in analytical chemistry, environmental chemistry, environmental science, toxicology or equivalent. Specialisation in chemical analysis of water contaminants and experience with LC-MS or LC-HRMS are valuable merits. Previous experience with laboratory work, sample preparation, extraction and analysis of organic contaminants is advantageous. Experience with method development, method validation, quality assurance or the analysis of water-related matrices is also considered a merit. Experience with suspect and nontarget screening workflows is highly desirable. Data processing skills using statistical computing and visualization tools (e.g. R, Python or similar) are also considered a merit. The ability to handle large analytical datasets and to work in a structured and reproducible way is important for the project. Emphasis is also placed on personal characteristics such as strong interpersonal skills, analytical and problem-solving abilities, accuracy, motivation, and the capacity to work independently as well as in collaboration with others. Read more here: https://www.slu.se/en/about-slu/work-at-slu/jobs-and-vacancies/doktorand2/ Form of employment Employment as a doctoral student (4-year programme). Doctoral student's salaries are set following the local collective agreement. Salary progression is fixed. Location: Uppsala Scope: 100% Start date: Upon agreement. Application and selection: Please submit your application using the link below. The deadline is 28 August 2026. The Swedish University of Agricultural Sciences (SLU) has a key role in the development for sustainable life, based on science and education. Through our focus on the interaction between humans, animals and ecosystems and the responsible use of natural resources, we contribute to sustainable societal development and good living conditions on our planet. Our main campuses are located in Alnarp, Umeå and Uppsala, however, the university also operates at research stations, experimental forests and teaching sites throughout Sweden. SLU has around 4,000 employees, 6,000 students and doctoral students and a turnover of over SEK 4,5 billion. We are investing in attractive environments on all of our campuses.
PhD Student in Chemistry with a Focus on Organic Chemistry
The Department of Chemistry within Life Sciences conducts research and education in analytical chemistry, biochemistry, and organic chemistry. More than 100 people, including approximately 45 doctoral students, work at the department. New staff members and students are recruited from around the world, and English is the primary working language. The department is located at the Biomedical Center in Uppsala, where there are excellent opportunities for collaboration with research groups in biology, pharmacy, medicine, and SciLifeLab, as well as access to advanced infrastructure for experimental and theoretical studies. The international environment and opportunities for interdisciplinary collaboration enable doctoral researchers at the department to participate in relevant research projects and prepare for an international research career. Read more about research at the Department of Chemistry within Life Sciences on our website. Project Description The Streuff group is internationally recognized for developing innovative synthesis methods, particularly in the field of early transition metal catalysis. The project focuses on investigating and developing single-electron transfer reactions with low-valent titanium catalysis and related reagents/catalysts. Additional projects in areas such as new bond cleavage and defunctionalization reactions, clarification of reaction mechanisms in catalysis, and total synthesis are also available and can be discussed at a later stage. Duties The primary responsibility of a doctoral student is to pursue doctoral studies, which includes both participation in research projects and doctoral coursework. The duties may also include teaching and other departmental work, but not exceeding 20% of working time. Qualification Requirements Eligibility for education at the doctoral level is granted to those who have completed course requirements of at least 240 higher education credits (hp), of which at least 60 hp at advanced level, or who have acquired equivalent competencies in another way. More information about eligibility requirements is available here. To be admitted to doctoral education in chemistry with a focus on organic chemistry, approved courses in chemistry or chemistry-related areas are required, comprising at least 90 hp, including at least 40 hp organic chemistry at advanced level, or equivalent knowledge acquired in another way. More information about the subject-specific requirements is available here. Very good knowledge of English, both spoken and written. A natural sciences master's degree in organic chemistry or equivalent. Great weight will be placed on personal qualities such as good collaborative skills, motivation, and independence, as well as how the applicant is assessed to have the abilities required to benefit from and develop within the doctoral education program based on their experience and competencies. Desirable/Meritorious Qualifications Knowledge and practical experience with NMR spectroscopy will be regarded as a very strong merit. The selection of applicants will be based on undergraduate academic profile and any additional research experience in areas relevant to the research project. Such experience should be documented and included in the application, for example through articles published in international peer-reviewed journals or through employment at companies or other institutions working in the specific research field. Great weight will be placed on personal qualifications required for the project. In filling these positions, we strive to recruit those individuals who, through a comprehensive assessment of competencies, skills, and documented merits, are deemed most suitable to conduct and develop the current project and contribute to positive development of the department. Doctoral students are typically engaged for some teaching at undergraduate and advanced levels. Previous experience with teaching/mentoring, even from environments outside schools/universities, as well as other outreach activities may therefore be meritorious. Regulations for doctoral students are found in the Higher Education Act 5 ch §§ 1-7 and in the university's rules and guidelines. About the Position The position is time-limited, according to Higher Education Act 5 ch § 7. Full-time (100%). Start date by agreement. Location: Uppsala Information about the position is provided by: Jan Streuff (email: [email protected]), +4618-471 3801. Welcome to submit your application no later than September 11, 2026, UFV-PA 2026/2222. Uppsala University is a broad research university with a strong international position. The ultimate goal is to conduct education and research of the highest quality and relevance to make a difference in society. Our most important asset is all 7,500 employees and 53,000 students who, with curiosity and dedication, make Uppsala University one of the country's most exciting workplaces. Learn more about our benefits and what it's like to work at Uppsala University https://uu.se/om-uu/jobba-hos-oss/ The position may be subject to security vetting. Security vetting is a prerequisite for employment, and applicants must be approved. We decline offers of recruitment and advertising assistance. Applications are received through Uppsala University's recruitment system. Trade union representatives: Saco-S - [email protected], Seko - [email protected], ST (OFR/S) - [email protected]
Postdoctoral Researcher in Physical Geography with Focus on the Future of the Greenland Ice Sheet
Postdoctoral Researcher in Physical Geography with Focus on the Future of the Greenland Ice Sheet Would you like to work studying mass changes of Greenland's ice sheet, supported by competent and friendly colleagues in an international environment? Do you want an employer that invests in sustainable employee relationships and offers secure, attractive working conditions? We welcome you to apply for a postdoctoral position at Uppsala University. The Department of Earth Sciences is Sweden's most comprehensive academic environment for research and education in geoscience. Here you will find broad expertise that contributes to solutions for important societal challenges. Earth is a dynamic planet that is constantly changing. To understand how our planet works, our researchers seek answers in the field, through laboratory experiments, and advanced models. Our research and education cover a wide range of areas: rocks and minerals, weather and climate, the evolution of life, natural disasters, wind energy and energy, environmental and water engineering, and sustainable development. Our research combines natural sciences and engineering with social sciences and is often interdisciplinary. The department employs over 300 people from more than 30 countries, both in Uppsala and at Campus Gotland. Our six research divisions: Geophysics • Air, Water and Landscape Science • Mineralogy, Petrology and Tectonics • Natural Resources and Sustainable Development • Paleobiology • Wind Energy For more information, see: https://www.uu.se/institution/geovetenskaper The advertised position is within the research program Air, Water and Landscape Science (LUVAL), which brings together research and education in hydrology, meteorology, environmental analysis, and physical geography. Research in physical geography has a main focus on cold environments, with a primary emphasis on glaciological topics, but also other aspects of the cryosphere. Duties The postdoctoral researcher will work on a project funded by the Swedish Space Agency, with the primary aims of creating a new mapping of bedrock topography and ice thickness for the Greenland ice sheet, and simulating the ice sheet's development through 2300. To achieve this, a new inverse modeling-based method will be used that reconstructs the bedrock topography beneath the ice, while also providing a starting point for predictive modeling. Following recent applications on plateaus and valley glaciers in the Arctic and subarctic (see, for example, Frank and Van Pelt, 2024; Van Pelt and Frank, 2025), and an application to all valley glaciers on Earth (Frank et al. 2026), the method will be optimized in this project for use on the Greenland ice sheet, while utilizing the latest high-resolution satellite data products. Ice flow modeling will be conducted using the Parallel Ice Sheet Model (PISM), though machine learning alternatives such as the Instructed Glacier Model (IGM) will also be considered. The project will involve close collaboration with a doctoral student in the same research group at Uppsala University as well as collaboration with international colleagues at Oslo University, Mid Sweden University, the Danish Meteorological Institute, University of Liège, University of Fairbanks, and University of Lausanne. The position includes 20% teaching at the Department of Earth Sciences, Uppsala University, in earth science (physical geography/hydrology) at undergraduate and advanced levels. Qualifications A doctoral degree in glaciology, earth science, computer science, physics, or similar, or a foreign degree deemed equivalent to a Swedish doctoral degree in the mentioned subject. The degree must be completed by the time the employment decision is made. Preference should be given to candidates who completed their degree no more than three years ago. In calculating the three-year period, the final application deadline is the starting point. If there are special reasons, such a degree may have been completed earlier. Special reasons include leave due to illness, parental leave, positions of trust within labor organizations, etc. Previous experience with numerical modeling and analysis of the cryosphere, preferably glaciers, is a requirement. The candidate must be able to communicate in spoken and written English at an advanced level, work independently, and work in an international team of researchers with different disciplinary backgrounds. Desirable/Meriting Qualifications Programming skills in Python or similar are valued. Additionally, experience with machine learning and spatial analysis software (e.g., ArcGIS) is meriting. About the Employment The employment is time-limited for 2 years in accordance with central collective agreements. The position is full-time. Start date: November 15, 2026, or by agreement. Work location: Uppsala For information about the position, contact: Ward van Pelt, [email protected] Welcome to apply by September 4, 2026, UFV-PA 2026/2399. Uppsala University is a broad research university with strong international standing. The ultimate goal is to conduct education and research of the highest quality and relevance to make a difference in society. Our most important asset is all 7,500 employees and 53,000 students who, with curiosity and commitment, make Uppsala University one of the country's most exciting workplaces. Learn more about our benefits and what it's like to work at Uppsala University https://uu.se/om-uu/jobba-hos-oss/ The employment may be subject to security clearance. Security clearance is a prerequisite for employment; applicants must be approved. We decline offers of recruitment and advertising assistance. Applications are received through Uppsala University's recruitment system. Labor representatives: Saco-S - [email protected], Seko - [email protected], ST (OFR/S) - [email protected]