Zobrazeno 1 - 10
of 126
pro vyhledávání: '"Heidi Hellén"'
Publikováno v:
Plant-Environment Interactions, Vol 5, Iss 1, Pp n/a-n/a (2024)
Abstract Oxidative stress from ozone (O3) causes plants to alter their emission of biogenic volatile organic compounds (BVOC) and their photosynthetic rate. Stress reactions from O3 on birch trees can result in prohibited plant growth and lead to inc
Externí odkaz:
https://doaj.org/article/45d2927d8087420588beccedd10fc1d3
Autor:
Hannele Hakola, Ditte Taipale, Arnaud Praplan, Simon Schallhart, Steven Thomas, Toni Tykkä, Aku Helin, Jaana Bäck, Heidi Hellén
Publikováno v:
Frontiers in Forests and Global Change, Vol 6 (2023)
Published biogenic volatile organic compound (BVOC) emission rates of Norway spruces vary a lot. In this study we combined published Norway spruce emission rates measured in boreal forests and added our new, unpublished emission data from Southern (S
Externí odkaz:
https://doaj.org/article/92e5a7c9e3ea401a930f12444b226844
Autor:
Oskari Kangasniemi, Pauli Simonen, Jana Moldanová, Hilkka Timonen, Luis M. F. Barreira, Heidi Hellén, Jukka-Pekka Jalkanen, Elisa Majamäki, Barbara D’Anna, Grazia Lanzafame, Brice Temime-Roussel, Johan Mellqvist, Jorma Keskinen, Miikka Dal Maso
Publikováno v:
Atmosphere, Vol 14, Iss 7, p 1175 (2023)
Shipping emissions are a major source of particulate matter in the atmosphere. The volatility of gaseous and particulate phase ship emissions are poorly known despite their potentially significant effect on the evolution of the emissions and their se
Externí odkaz:
https://doaj.org/article/1a2561c10b76436fbb563deb39d0561a
Publikováno v:
Frontiers in Forests and Global Change, Vol 5 (2022)
Biogenic volatile organic compounds (BVOCs) are known to strongly influence the global climate by affecting various atmospheric constituents such as oxidants and aerosols. Among the several BVOCs that are emitted continuously into the atmosphere, stu
Externí odkaz:
https://doaj.org/article/df6de0898c664640b25263d9c80dff5a
Autor:
Vaios Moschos, Julia Schmale, Wenche Aas, Silvia Becagli, Giulia Calzolai, Konstantinos Eleftheriadis, Claire E Moffett, Jürgen Schnelle-Kreis, Mirko Severi, Sangeeta Sharma, Henrik Skov, Mika Vestenius, Wendy Zhang, Hannele Hakola, Heidi Hellén, Lin Huang, Jean-Luc Jaffrezo, Andreas Massling, Jakob K Nøjgaard, Tuukka Petäjä, Olga Popovicheva, Rebecca J Sheesley, Rita Traversi, Karl Espen Yttri, André S H Prévôt, Urs Baltensperger, Imad El Haddad
Publikováno v:
Environmental Research Letters, Vol 17, Iss 3, p 034032 (2022)
The Arctic is warming two to three times faster than the global average, and the role of aerosols is not well constrained. Aerosol number concentrations can be very low in remote environments, rendering local cloud radiative properties highly sensiti
Externí odkaz:
https://doaj.org/article/740c381185b040028aeb91024176ae9f
Autor:
Anni Vanhatalo, Juho Aalto, Tommy Chan, Teemu Hölttä, Pasi Kolari, Kaisa Rissanen, Kourosh Kabiri, Heidi Hellén, Jaana Bäck
Publikováno v:
Frontiers in Forests and Global Change, Vol 2 (2020)
The volatile organic compound (VOC) fluxes of living plant compartments other than foliage are poorly known. In this paper we describe for the first time the methanol and monoterpene fluxes from living Scots pine stems in situ, over 4 years at the SM
Externí odkaz:
https://doaj.org/article/07cf56352f494c698463efbe3222484f
Publikováno v:
Frontiers in Plant Science, Vol 10 (2019)
In the northern hemisphere, boreal forests are a major source of biogenic volatile organic compounds (BVOCs), which drive atmospheric processes and lead to cloud formation and changes in the Earth’s radiation budget. Although forest vegetation is k
Externí odkaz:
https://doaj.org/article/93870ccf669644f4a595a1e3127b0c49
Autor:
Kerneels Jaars, Mika Vestenius, Pieter G. van Zyl, Johan P. Beukes, Heidi Hellén, Ville Vakkari, Marcell Venter, Miroslav Josipovic, Hannele Hakola
Publikováno v:
Clean Air Journal, Vol 28, Iss 2 (2018)
Externí odkaz:
https://doaj.org/article/82994a4fc6a743a28b35b9c0454162ed
Autor:
Magdalena Okuljar, Olga Garmash, Miska Olin, Joni Kalliokoski, Hilkka Timonen, Jarkko V. Niemi, Pauli Paasonen, Jenni Kontkanen, Yanjun Zhang, Heidi Hellén, Heino Kuuluvainen, Minna Aurela, Hanna E. Manninen, Mikko Sipilä, Topi Rönkkö, Tuukka Petäjä, Markku Kulmala, Miikka Dal Maso, Mikael Ehn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc22198c26f1b7315484a70967b7e970
https://doi.org/10.5194/egusphere-2023-524-supplement
https://doi.org/10.5194/egusphere-2023-524-supplement
Autor:
Magdalena Okuljar, Olga Garmash, Miska Olin, Joni Kalliokoski, Hilkka Timonen, Jarkko V. Niemi, Pauli Paasonen, Jenni Kontkanen, Yanjun Zhang, Heidi Hellén, Heino Kuuluvainen, Minna Aurela, Hanna E. Manninen, Mikko Sipilä, Topi Rönkkö, Tuukka Petäjä, Markku Kulmala, Miikka Dal Maso, Mikael Ehn
Publikováno v:
eISSN
Condensable vapors, including highly oxygenated organic molecules (HOM), govern secondary organic aerosol formation and thereby impact the amount, composition, and properties (e.g. toxicity) of aerosol particles. These vapors are mainly formed in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::335b9402f732ce72c67c3f3ced6d387d
https://doi.org/10.5194/egusphere-2023-524
https://doi.org/10.5194/egusphere-2023-524