Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Maija Kajos"'
Autor:
Taina Ruuskanen, Markku Kulmala, Simon Schallhart, Maija Kajos, Ivan Mammarella, Juho Aalto, Pekka Rantala
Publikováno v:
Atmospheric Chemistry and Physics, Vol 18, Pp 815-832 (2018)
Between April and June 2013 fluxes of volatile organic compounds (VOCs) were measured in a Scots pine and Norway spruce forest using the eddy covariance (EC) method with a proton transfer reaction time-of-flight (PTR-TOF) mass spectrometer. The obser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f27de760996ccb17ac1540c7ad189da
https://www.atmos-chem-phys.net/18/815/2018/acp-18-815-2018.pdf
https://www.atmos-chem-phys.net/18/815/2018/acp-18-815-2018.pdf
Autor:
Thomas Holst, Stefan Olin, Risto Makkonen, Guy Schurgers, Pauli Paasonen, Almut Arneth, Markku Kulmala, Maija Kajos, T. Maximov, Paul A. Miller
Publikováno v:
Atmospheric Chemistry and Physics. 16:5243-5262
Disproportional warming in the northern high latitudes and large carbon stocks in boreal and (sub)arctic ecosystems have raised concerns as to whether substantial positive climate feedbacks from biogeochemical process responses should be expected. Su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ea3e6bbc013470e33566707ba5bc3a76
https://doi.org/10.5194/acp-16-5243-2016
https://doi.org/10.5194/acp-16-5243-2016
Autor:
Taina Ruuskanen, Markus Jocher, Simon Schallhart, D. Johnson, A. Bracher, Jörg Sintermann, A. Münger, Maija Kajos, Albrecht Neftel
Publikováno v:
Biogeosciences, Vol 11, Iss 18, Pp 5073-5085 (2014)
Degradation of plant material by animals is an important transformation pathway in the nitrogen (N) cycle. During the involved processes, volatile reduced alkaline nitrogen compounds, mainly ammonia (NH3) and aliphatic amines such as trimethylamine (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c78bd2c7f117caf96b378388456cb86e
https://www.biogeosciences.net/11/5073/2014/
https://www.biogeosciences.net/11/5073/2014/
Autor:
Markku Kulmala, Kari Hartonen, Marja-Liisa Riekkola, Niina Kärkkäinen, Maija Kajos, Matti Jussila, Luís Miguel Feijó Barreira, Jevgeni Parshintsev
Publikováno v:
Atmospheric Environment. 115:214-222
Biogenic volatile organic compounds (BVOCs) participate in many physicochemical processes in the atmosphere. Studies indicate that some of these volatile compounds can be photo-oxidized to non-volatile species that contribute to atmospheric formation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd64ec7678829f11e486adfb4cbe6348
https://doi.org/10.1016/j.atmosenv.2015.05.064
https://doi.org/10.1016/j.atmosenv.2015.05.064
Autor:
Richard C. Flagan, Serge Mathot, Yuri Stozhkov, Neil M. Donahue, Sebastian Ehrhart, Arnaud P. Praplan, Linda Rondo, Armin Hansel, Markku Kulmala, Aron Vrtala, Heikki Junninen, Jasper Kirkby, Eimear M. Dunne, Alexander N. Kvashin, Catherine E. Scott, A. David, Simon Schallhart, F. Bianchi, António Tomé, Jonathan Duplissy, Tuomo Nieminen, Douglas R. Worsnop, António Amorim, Mikko Sipilä, Agnieszka Kupc, Helmi Keskinen, Dominick V. Spracklen, Josef Dommen, Petri Vaattovaara, Daniela Wimmer, Ari Laaksonen, Yrjö Viisanen, John H. Seinfeld, Tuukka Petäjä, Vladimir Makhmutov, Filipe Duarte Santos, Katrianne Lehtipalo, Joachim Curtius, Alessandro Franchin, Andrew J. Downard, Martin Breitenlechner, Urs Baltensperger, Maija Kajos, Heike Wex, Georgios Tsagkogeorgas, Ernest Weingartner, Kenneth S. Carslaw, Ismael K. Ortega, Paul E. Wagner, Francesco Riccobono, Antti Onnela, Siegfried Schobesberger, Joao Almeida, Andreas Kürten, Frank Stratmann
Publikováno v:
Science
Out of the Air New-particle formation from gaseous precursors in the atmosphere is a complex and poorly understood process with importance in atmospheric chemistry and climate. Laboratory studies have had trouble reproducing the particle formation ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96b9328c6f89b9a260bff8aa5674be66
https://doi.org/10.1126/science.1243527
https://doi.org/10.1126/science.1243527
Autor:
Liisa Pirjola, Toivo Pohja, Pertti Hari, Tiia Grönholm, Timo H. Virtanen, Maija Kajos, P. P. Aalto, Janne Rinne, Johanna Patokoski, John Backman, Mari Pihlatie, Jukka Pumpanen, David M. Schultz, A. J. Kieloaho, Jaakko Kukkonen, Jaana Bäck, G. de Leeuw, Hermanni Aaltonen, V. Aaltonen, Markku Kulmala, Heikki Junninen, V.-M. Kerminen, Taina Ruuskanen, Taru Olsson, Craig B. Clements, Hanna E. Manninen, Janne Levula, Petri Keronen, M. Dal Maso, Tuukka Petäjä, Tuomo Nieminen, Aki Virkkula, Liisa Kulmala, Juho Aalto, Siegfried Schobesberger, Mikhail Sofiev
Publikováno v:
Atmospheric Chemistry and Physics, Vol 14, Iss 9, Pp 4473-4502 (2014)
Virkkula, A, Levula, J, Pohja, T, Aalto, P P, Keronen, P, Schobesberger, S, Clements, C B, Pirjola, L, Kieloaho, A J, Kulmala, L, Aaltonen, H, Patokoski, J, Pumpanen, J, Rinne, J, Ruuskanen, T, Pihlatie, M, Manninen, H E, Aaltonen, V, Junninen, H, Petäjä, T, Backman, J, Dal Maso, M, Nieminen, T, Olsson, T, Grönholm, T, Aalto, J, Virtanen, T H, Kajos, M, Kerminen, V M, Schultz, D M, Kukkonen, J, Sofiev, M, De Leeuw, G, Bäck, J, Hari, P & Kulmala, M 2014, ' Prescribed burning of logging slash in the boreal forest of Finland: Emissions and effects on meteorological quantities and soil properties ', Atmospheric Chemistry and Physics, vol. 14, no. 9, pp. 4473-4502 . https://doi.org/10.5194/acp-14-4473-2014
Virkkula, A, Levula, J, Pohja, T, Aalto, P P, Keronen, P, Schobesberger, S, Clements, C B, Pirjola, L, Kieloaho, A J, Kulmala, L, Aaltonen, H, Patokoski, J, Pumpanen, J, Rinne, J, Ruuskanen, T, Pihlatie, M, Manninen, H E, Aaltonen, V, Junninen, H, Petäjä, T, Backman, J, Dal Maso, M, Nieminen, T, Olsson, T, Grönholm, T, Aalto, J, Virtanen, T H, Kajos, M, Kerminen, V M, Schultz, D M, Kukkonen, J, Sofiev, M, De Leeuw, G, Bäck, J, Hari, P & Kulmala, M 2014, ' Prescribed burning of logging slash in the boreal forest of Finland: Emissions and effects on meteorological quantities and soil properties ', Atmospheric Chemistry and Physics, vol. 14, no. 9, pp. 4473-4502 . https://doi.org/10.5194/acp-14-4473-2014
A prescribed fire experiment was conducted on 26 June 2009 in Hyytiälä, Finland, to study aerosol and trace gas emissions from prescribed fires of slash fuels and the effects of fire on soil properties in a controlled environment. A 0.8 ha forest n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e13f327dc4063217e0030b643621b56
http://www.atmos-chem-phys.net/14/4473/2014/acp-14-4473-2014.pdf
http://www.atmos-chem-phys.net/14/4473/2014/acp-14-4473-2014.pdf
Autor:
Almut Arneth, Maija Kajos, T. Maximov, Hannele Hakola, Tuomo Nieminen, Janne Rinne, Tuukka Petäjä, Thomas Holst, V. Tarvainen
Publikováno v:
Biogeosciences. 10:4705-4719
While emissions of many biogenic volatile organic compounds (BVOCs), such as terpenoids, have been studied quite intensively in North American and Scandinavian boreal forests, the vast Siberian boreal forests have remained largely unexplored by exper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b54cf55b7e241670ee4a80f45cf2e61
https://doi.org/10.5194/bg-10-4705-2013
https://doi.org/10.5194/bg-10-4705-2013
Autor:
Jakob Löndahl, Jonatan Carlsson, Pontus Roldin, Joakim Pagels, Mattias Hallquist, Axel Eriksson, Birgitta Svenningsson, Cerina Wittbom, Heidi Hellén, Mats Bohgard, Erik Swietlicki, Maija Kajos, Patrik Nilsson, Erik Nordin, Markku Kulmala, Jenny Rissler
Publikováno v:
Atmospheric Chemistry and Physics, Vol 13, Iss 12, Pp 6101-6116 (2013)
Atmospheric Chemistry and Physics; 13(12), pp 6101-6116 (2013)
Lund University
Atmospheric Chemistry and Physics
Atmospheric Chemistry and Physics; 13(12), pp 6101-6116 (2013)
Lund University
Atmospheric Chemistry and Physics
Gasoline vehicles have recently been pointed out as potentially the main source of anthropogenic secondary organic aerosol (SOA) in megacities. However, there is a lack of laboratory studies to systematically investigate SOA formation in real-world e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c9fa3edcba47e3e2198887e9119ae40
http://www.atmos-chem-phys.net/13/6101/2013/acp-13-6101-2013.pdf
http://www.atmos-chem-phys.net/13/6101/2013/acp-13-6101-2013.pdf
Autor:
Henrik Westerholm, Markku Kulmala, Tuija Jokinen, Heikki Junninen, Johanna Patokoski, Jukka Teittinen, Katrianne Lehtipalo, Siegfried Schobesbergera, Mikko Sipilä, Maija Kajos, Risto Taipale, Kai Larnimaa, Tuukka Petäjä, Jani Hakala, Nina Sarnela
Publikováno v:
Sarnela, N, Jokinen, T, Junninen, H, Hakala, J, Taipale, R, Patokoski, J, Kajos, M, Schobesbergera, S, Lehtipalo, K, Sipilä, M, Teittinen, J, Westerholm, H, Larnimaa, K, Petäjä, T & Kulmala, M 2013, ' Sulphur dioxide and sulphuric acid concentrations in the vicinity of Kilpilahti industrial area ', AIP Conference Proceedings, vol. 629, pp. 629-632 . https://doi.org/10.1063/1.4803350
Industrial activity is a major source of sulphur compound emissions. The sulphuric acid and sulphur dioxide measurements in the vicinity of the industrial area and the oil refinery in Kilpilahti expressed great variation in concentration. The hourly
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8f066af4b3a1a28ee9f01b1fbcc5d779
https://cris.vtt.fi/en/publications/e28688c6-c442-437f-b570-30d214303a54
https://cris.vtt.fi/en/publications/e28688c6-c442-437f-b570-30d214303a54
Autor:
Pasi Kolari, Maija Kajos, Risto Taipale, Pertti Hari, Taina Ruuskanen, Janne Rinne, Markku Kulmala, Jaana Bäck
Publikováno v:
Atmospheric Environment. 62:344-351
We determined the accuracy of the dynamic chamber system for measuring VOC emissions of trees and soil in the field at SMEAR II station, Hyytiala, Southern Finland. The study was based on creating a known source of different VOCs inside the chamber a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2be71adb76c987f08e22624829a6136
https://doi.org/10.1016/j.atmosenv.2012.08.054
https://doi.org/10.1016/j.atmosenv.2012.08.054