Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Pekka Rantala"'
Autor:
Heikki Junninen, Lauri Ahonen, Federico Bianchi, Lauriane Quéléver, Simon Schallhart, Lubna Dada, Hanna Elina Manninen, Katri Leino, Janne Lampilahti, Stephany Buenrostro Mazon, Pekka Rantala, Mari Räty, Jenni Kontkanen, Sara Negri, Diego Aliaga, Olga Garmash, Pavel Alekseychik, Helina Lipp, Kalju Tamme, Janne Levula, Mikko Sipilä, Mikael Ehn, Douglas Worsnop, Sergej Zilitinkevich, Ivan Mammarella, Janne Rinne, Timo Vesala, Tuukka Petäjä, Veli-Matti Kerminen, Markku Kulmala
Publikováno v:
Communications Earth & Environment, Vol 3, Iss 1, Pp 1-9 (2022)
Boreal wetlands emit terpenes which initiate atmospheric new particle formation to an even greater degree than is usually seen over boreal forests, according to direct measurements of volatile organic compounds from a Finnish wetland.
Externí odkaz:
https://doaj.org/article/b59956c8db324bddb7c3124bf1649d19
Autor:
Zhandong Wang, Mikael Ehn, Matti P. Rissanen, Olga Garmash, Lauriane Quéléver, Lili Xing, Manuel Monge-Palacios, Pekka Rantala, Neil M. Donahue, Torsten Berndt, S. Mani Sarathy
Publikováno v:
Communications Chemistry, Vol 4, Iss 1, Pp 1-8 (2021)
Efficient autoxidation of organic compounds typically requires that they possess double bonds or oxygen-containing moieties, which is why alkanes were thought to contribute little to atmospheric organic aerosol formation. Here, mass spectrometry show
Externí odkaz:
https://doaj.org/article/b7bcfe77a48a4ff18a32965cbfa6dcc8
Autor:
Pontus Roldin, Mikael Ehn, Theo Kurtén, Tinja Olenius, Matti P. Rissanen, Nina Sarnela, Jonas Elm, Pekka Rantala, Liqing Hao, Noora Hyttinen, Liine Heikkinen, Douglas R. Worsnop, Lukas Pichelstorfer, Carlton Xavier, Petri Clusius, Emilie Öström, Tuukka Petäjä, Markku Kulmala, Hanna Vehkamäki, Annele Virtanen, Ilona Riipinen, Michael Boy
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-15 (2019)
Forests emit compounds into the atmosphere that are oxidized into highly oxygenated molecules that serve as precursors for cloud condensation nuclei–a process that impacts the climate, but is poorly represented in models. Here the authors create a
Externí odkaz:
https://doaj.org/article/44d7925ecfeb40f08bf4925e80ac9daf
Globally, cities correspond to most of the direct anthropogenic carbon emissions, and due to the global mega-trend of urbanization, their importance will only increase. The carbon budget of an area is often given as a net ecosystem exchange (NEE), wh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eae18d8435486f6fab945b5be8fcc077
https://doi.org/10.5194/egusphere-egu23-7420
https://doi.org/10.5194/egusphere-egu23-7420
Autor:
Lejish Vettikkat, Pasi Miettinen, Angela Buchholz, Pekka Rantala, Hao Yu, Simon Schallhart, Tuukka Petäjä, Roger Seco, Elisa Männistö, Markku Kulmala, Eeva-Stiina Tuittila, Alex B. Guenther, Siegfried Schobesberger
Wetlands cover only 3g% of the global land surface area, but boreal wetlands are experiencing an unprecedented warming of four times the global average. These wetlands emit isoprene and terpenes (including monoterpenes (MT), sesquiterpenes (SQT), and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e02ae585742a8de6df9bce52a242f617
https://api.elsevier.com/content/abstract/scopus_id/85149463265
https://api.elsevier.com/content/abstract/scopus_id/85149463265
Autor:
Lejish Vettikkat, Pasi Miettinen, Angela Buchholz, Pekka Rantala, Hao Yu, Simon Schallhart, Roger Seco, Elisa Männistö, Eeva-Stiina Tuittila, Alex B. Guenther, Siegfried Schobesberger
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c57ebd2685a44899e735dcc413a5be6e
https://doi.org/10.5194/acp-2022-588-supplement
https://doi.org/10.5194/acp-2022-588-supplement
Autor:
Ruochong Xu, Joel A. Thornton, Ben H. Lee, Yanxu Zhang, Lyatt Jaeglé, Felipe D. Lopez-Hilfiker, Pekka Rantala, Tuukka Petäjä
We evaluate monoterpene-derived peroxy radical (MT-RO2) unimolecular autoxidation and self- and cross-reactions with other RO2 species in the GEOS-Chem global chemical transport model. The formation of associated highly oxygenated organic molecules (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::527eb50e92e8da5b05b5e29bf306dadf
http://hdl.handle.net/10138/345111
http://hdl.handle.net/10138/345111
Autor:
Lejish Vettikkat, Pasi Miettinen, Angela Buchholz, Pekka Rantala, Hao Yu, Simon Schallhart, Siegfried Schobesberger
Wetlands are well-known for their high emissions of methane to the atmosphere, but emissions of volatile organic compounds (VOCs) are also reported from wetlands. Wetlands cover about 2 % of the total land surface area and most of these wetlands are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e6d2a61eb858b5675f9539981de3862
https://doi.org/10.5194/egusphere-egu22-6938
https://doi.org/10.5194/egusphere-egu22-6938
Autor:
Juha Kangasluoma, Mingyi Wang, Yonghong Wang, Maofa Ge, Chenjuan Deng, Hong He, Jing Cai, Yongchun Liu, Michael Boy, Lubna Dada, Lin Wang, Neil M. Donahue, Rujing Yin, Chao Yan, Yuesi Wang, Jingkun Jiang, Qiaozhi Zha, Wei Du, Zhenhao Ling, Douglas R. Worsnop, Pekka Rantala, Zhuohui Lin, Tuukka Petäjä, Petri Clusius, Yee Jun Tham, F. Bianchi, Yiqun Lu, Kaspar Dällenbach, Mikael Ehn, Lei Yao, Xu-Cheng He, Markku Kulmala, Xiaolong Fan, Heikki Junninen, Liine Heikkinen, Veli-Matti Kerminen, Weigang Wang, Biwu Chu
The understanding at a molecular level of ambient secondary organic aerosol (SOA) formation is hampered by poorly constrained formation mechanisms and insufficient analytical methods. Especially in developing countries, SOA related haze is a great co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d3906ed2465fc08c4a7a01ba3ee4507
http://hdl.handle.net/10138/344293
http://hdl.handle.net/10138/344293
Autor:
Xiaolong Fan, Veli-Matti Kerminen, Joni Kujansuu, Ying Zhou, Lubna Dada, Yongchun Liu, Kaspar Dällenbach, Lili Wang, Rima Baalbaki, Yishou Guo, Pauli Paasonen, Tom V. Kokkonen, Tuukka Petäjä, Benjamin Foreback, Pekka Rantala, Lin Zhuohui, Mona Kurppa, F. Bianchi, Tommy Chan, Chang Li, Biwu Chu, M. Kulmala, Rosaria E. Pileci, Chao Yan, Shahzad Gani, Zemin Feng, Yonghong Wang, Juha Kangasluoma
This study investigates the influence of the Chinese New Year (CNY) celebrations on local air quality in Beijing from 2013 through 2019. CNY celebrations include burning of fireworks and firecrackers, which consequently has a significant short-term i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e262512d09151faf59b350c04dbd5d5
http://hdl.handle.net/10138/353849
http://hdl.handle.net/10138/353849