1. 1995, Member, New York Academy of Sciences, USA, Member
2. 1995, Member, Finnish Chemical Society, Finland, Member
3. 1995, Member, Finnish Society of Environmental Sciences, Finland, Member
4. 1997, Member, American Association for the Advancement of Science, USA, Member
5. 1998, Participant, Vivenda Europaea – Environmental European Forum of Young Researchers, France, Selected participant representing Finland
6. 2000, Member of the Board, Finnish Society of Environmental Sciences, Finland, Leadership and management
7. 2001, Chairman, World Water Congress of International Water Association, United Kingdom, Resources for Physical Chemical Treatment
8. 2001-2003, Member, University of Oulu, Finland, Steering Group of the Department of Process and Environmental Engineering
9. 2002-2003, Member, University of Oulu, Finland, The Council of the Faculty of Technology
10. 2003, Member, Finnish Society of Environmental Sciences, Finland, Panel Committee to evaluate the best doctoral thesis in Environmental Sciences
11. 2003-2004, Member, Graduate School of Environmental Science and Technology, Finland, Steering Group
12. 2004, Member, Mikkeli City, Finland, Committee of Higher Education
13. 2004-present, Member, Mikkeli University Consortium, Finland, Management Board
14. 2004-2005, Member, ENTRE, Finland, Steering Group
15. 2005, Member, Finnish Society of Environmental Sciences, Finland, Panel Committee to evaluate the best doctoral thesis in Environmental Sciences
16. 2005, Member, South Savo, Finland, Regional strategy in research and education
17. 2005, Vice President, Finnish Society of Environmental Sciences, Finland, Leadership and management
18. 2005, Member, Mikkeli University Consortium, Finland, Working Group of Research Coordinator
19. 2005, Delegation Member, China, Finland, Eastern Finland’s delegation trip led by the province’s governor Pirjo Alakapee-Hakulinen
20. 2005-2006, Member, South Savo Commercial Chamber, Finland, Innovation Working Group
21. 2006, Chairman, Mikkeli University Consortium, Finland, Management Board
22. 2006-2007, President, Finnish Society of Environmental Sciences, Finland, Leadership and Management
23. 2007, Vice Chairman, Mikkeli University Consortium, Finland, Management Board
24. 2007, Finland’s Representative, Worldwide, Finland, Scientific Committee on the Problems of the Environment (SCOPE)
25. 2007, Member, Finland, Finland, Organizing Committee of 16th International Conference on Ion Mobility Spectrometry
26. 2007, Finland’s Representative, Worldwide, Finland, International Geosphere-Biosphere Program (IGBP)
27. 2007, Chairman, 8th Finnish Conference on Environmental Sciences, Finland, Chairman of Local Organizing Committee and Chairman of Scientific Committee
28. 2008, Member, University of Kuopio, Finland, Organizing Committee of the Ion mobility spectrometry Workshop
29. 2008, Chairman, St. Petersburg State University, Russia, Session on Environmental Technology of the Finland-Russia Cross border Conference
30. 2008, Delegation Member, Mumbai, Delhi, India, Business delegation led by Prime Minister Matti Vanhanen and Minister of Environment Kimmo Tiilikainen of the Government of Finland to India
31. 2009, Member, Mikkeli University Consortium, Finland, Scientific committee of the Mikkeli Science Day
32. 2009, Member, University of Kuopio, Finland, Organizing Committee of the Ion Mobility Spectrometry Workshop
33. 2009, Delegation Member, Kiev, Ukraine, Business delegation led by President of Finland Tarja Halonen and Minister of International Trade and Commerce Paavo Väyrynen to Ukraine
34. 2009, Delegation Member, Lima, Paracas, Peru, Business delegation led by Minister of Environment Paula Lehtomäki to Latin America
35. 2011, Member, Finnish Society of Environmental Sciences, Finland, Panel Committee to evaluate the best doctoral thesis in Environmental Sciences
36. 2011, Principal Scientific Reviewer, United Nations Environment Programme, Global, Biannual GEO-5 report
37. 2012-, Panel Member, Katerva, Global, Materials and Resources
38. 2012, Delegation Member, Finpro, Algeria, Trade Promotion Visit with Minister for European Affairs and Foreign Trade Alexander Stubb and the Business Delegation
39. 2013, Member, Buenos Aires, Argentina, Scientific committee of 5th International Congress on arsenic in the environment – As2014
40. 2013, Member of Thesis Advisory Committee, University of Helsinki, Finland, Jernberg, J., Ph.D. thesis, Novel Analytical Methods for the Identification of Emerging Contaminants in Aquatic Environments
41. 2015, Member of the Advisory Committee, Himalayan Environment Research Institute (HERI), Nepal, Member
42. 2015, Member of the Advisory Committee of the International Conference on Current Trends in Chemical Sciences and its applications, KCG College of Technology, India, Member
43. 2015, Member of the International Scientific Committee, 6th International Congress on Arsenic in the Environment, Sweden, Member
44. 2016, Reviewer, International Workshop on Chemistry, Istanbul, 28-29th May, Turkey, Reviewer
45. 2016, Member of Technical Program Committee, Khon Kaen University International Engineering Conference, Thailand, Member
46. 2016, Member of Technical Program Committee, Khon Kaen University International Engineering Conference, Thailand, Member
47. 2016, Member of the International Organizing Committee and the Scientific Committee, 6th International Congress on Arsenic in the Environment, Sweden, Member
48. 2016, Member of the Steering Group, International Conference on Smart Cities in Smart Regions, Finland, Member
49. 2016, Reviewer, International Workshop on Chemistry, Turkey, Reviewer
50. 2016, Member of Organizing Committee, 1st International Seminar “New Methods of Screening Diagnosis of Cancer and Few Other Diseases on the Base of Exhaled Air Analysis”, Finland, Member
51. 2016, Member of Organizing Committee, International Conference on Smart Cities in Smart Regions, Lahti, May 10, Finland, Member
52. 2016, Reviewer, 6th International Congress on Arsenic in the Environment Arsenic Research and Global Sustainability, Stockholm, 19-23 June, Sweden, Reviewer
53. 2017, Member of International Advisory Committee, Energy Environment and Advanced Materials for a Sustainable Future, Perundurai, May 23-24, India, Member
54. 2017, Co-Chair of the International Mine Water Association Conference, International Mine Water Association Conference, Lappeenranta, June 25-30, Finland, Co-Chair
55. 2018, Member of the International Organizing Committee, Conference on Catalysis and Chemical Engineering, Paris, February 19-21, France, Member
56. 2018, Member of Organizing Committee, World Congress on Green Chemistry and Green Engineering, Melbourne, July 16-18, Australia, Member
57. 2018, Member of the Scientific Committee, EREM2018 XVI. International Symposium on Electrokinetic Remediation, Canakkale, August 6-8, 2018, Turkey, Member
58. 2018, Member of the Committee, World Congress on Functional Materials and Nanotechnology, Bangkok, October 18-20, Thailand, Member
59. 2018, Member of the Preliminary Jury, Skolar Award 2018, Finland, Member
60. 2018, Member of International Advisory Committee for the International Conference on "Chemistry, Industry and Environment", India
61. 2019, Member of the International Scientific Committee for the 3rd International Conference on Energy, Environment and Climate Change (ICEECC), Mauritius
62. 2019, Reviewer of the International Mine Water Association IMWA2019 conference, Russia
63. 2019, Member of Scientific Committee, 8th International Conference WATER FOR ALL, Croatia
64. 2019 – present, Member of the advisory board of Hanell International
65. 2019, Finnish Lakeland Forum, Invited Lecture, Finland
66. 2019, Headquarters Symposium, Keynote Lecture, Finland
67. 2019-2022, Member of the Santasalo Foundation Board, Finland
68. 2020 – present, Member of the International Advisory Board, ITMO University, St. Petersburg, Russia
69. 2021, Member of the International Program Committee, Waste 2021, St. Petersburg, Russia
70. 2021 – present, European Science Foundation, College of Expert Reviewers, Member
71. 2021, Member of the International Advisory Committee, Gudlavalleru, Andhra Pradesh, India
72. 2021 – 2027, Member of the FWO Review College, Belgium
73. 2022, Member of the International Advisory Committee, International Conference on Sustainable Nanotechnology and Nanomaterials (ICONN – 2022), August 25-26, 2022, Chandigarh, India
74. 2022, Member of the International Scientific Committee, 1st International Conference on Emerging Materials for Sustainable Energy and Environment (EMSEE2022), December 13-15, 2022, Kuala Lumpur, Malaysia
75. 2022 - present, Member of Board, International Association of Environmental Scientists and Professionals
76. 2022, 2023, Jury Member, Frontiers Planet Prize
77. 2023, Member of the Scientific Committee, 6th International conference on Alternative Fuels, Energy & Environment (ICAFEE 2023)
78. 2023, Jury Member, Frontiers Planet Prize
79. 2023, Member of the Scientific Committee, The First International Conference on Innovation Research in Materials and Nanotechnology (ICIRMN 2023), November 29-30. 2023, Ghardaia, Algeria
80. 2024, Member of the Scientific Committee, Global Congress on Civil, Structural and Environmental Engineering (GCCIVIL2024), June 27-29, 2024, Paris, Fance
81. 2024, Member of the Advisory Board, 2nd International Conference on Advances in Multidisciplinary Sciences and Engineering Research (ICAMSER-2024), July 4-5, 2024, New Delhi, India
82. 2024, Member of the International Advisory Team, International Conference on Navigating global Energy transition for sustainable future (ICNETS 2024), September 18-20, 2024, Dehra Dun, India
83. 2024, Jury Member, Frontiers Planet Prize
84. 2024, Member of the Scientific Committee, VI International Ege Composite Materials, November 27-29, 2024, Izmir, Turkiye
85. 2024 - present, President of the IETI Finnish Society, the International Engineering and Technology Institute (IETI)
86. 2024 – present, Member of the Advisory Committee Board, Jeppiaar Research and Development Organisation (JRDO), Jeppiaar University, India
87. 2025, Member of the Evaluation Platform, Mustafa Science and Technology Foundation
88. 2025, Member of the Advisory Committee, International Conference on Recent Developments in Science and Technology for Achieving Sustainable Goals Using Statistical Techniques (RDSTASGST-2025), September 25-26, 2025, Amity School of Applied Sciences, Amity University Uttar Pradesh, Lucknow Campus, India.
89. 2025, Jury Member, Frontiers Planet Prize
90. 2025, Member of Scientific committee, BMF Trading
91. 2026, Member of the Scientific Committee, 23rd International Iranian Congress of Chemistry, September 5–7, 2026, Tabriz, Iran
92. 2026, ARPA Opportunity Foundation, Advisor
93. 2026, Member of the Scientific Committee, International Nuclear Sciences and Technologies Conference (INSTEC-26), October 22-24, 2026, Kusadasi, Turkiye