| Temperature and light dependence of the VOC emissions of Scots pine V Tarvainen, H Hakola, H Hellén, J Bäck, P Hari, M Kulmala Atmospheric Chemistry and Physics 5 (4), 989-998, 2005 | 314 | 2005 |
| Seasonal variation of VOC concentrations above a boreal coniferous forest H Hakola, V Tarvainen, T Laurila, V Hiltunen, H Hellén, P Keronen Atmospheric Environment 37 (12), 1623-1634, 2003 | 311 | 2003 |
| Sulphuric acid closure and contribution to nucleation mode particle growth M Boy, M Kulmala, TM Ruuskanen, M Pihlatie, A Reissell, PP Aalto, ... Atmospheric Chemistry and Physics 5 (4), 863-878, 2005 | 219 | 2005 |
| Size distribution and chemical composition of airborne particles in south-eastern Finland during different seasons and wildfire episodes in 2006 U Makkonen, H Hellén, P Anttila, M Ferm Science of the Total Environment 408 (3), 644-651, 2010 | 162 | 2010 |
| Variation of the VOC emission rates of birch species during the growing season H Hakola, T Laurila, V Lindfors, H Hellén, A Gaman, J Rinne Boreal Environment Research 6 (3), 237-249, 2001 | 156 | 2001 |
| In situ measurements of volatile organic compounds in a boreal forest H Hakola, H Hellén, M Hemmilä, J Rinne, M Kulmala Atmospheric Chemistry and Physics 12 (23), 11665-11678, 2012 | 147 | 2012 |
| Secondary organic aerosol formation from gasoline passenger vehicle emissions investigated in a smog chamber EZ Nordin, AC Eriksson, P Roldin, PT Nilsson, JE Carlsson, MK Kajos, ... Atmos. Chem. Phys. Discuss 12, 31725-31765, 2012 | 143* | 2012 |
| Boreal pine forest floor biogenic volatile organic compound emissions peak in early summer and autumn H Aaltonen, J Pumpanen, M Pihlatie, H Hakola, H Hellén, L Kulmala, ... Agricultural and Forest Meteorology 151 (6), 682-691, 2011 | 143 | 2011 |
| C2-C10 hydrocarbon emissions from a boreal wetland and forest floor H Hellén, H Hakola, KH Pystynen, J Rinne, S Haapanala Biogeosciences 3 (2), 167-174, 2006 | 141 | 2006 |
| Hydrocarbon fluxes above a Scots pine forest canopy: measurements and modeling J Rinne, R Taipale, T Markkanen, TM Ruuskanen, H Hellén, MK Kajos, ... Atmospheric Chemistry and Physics 7 (12), 3361-3372, 2007 | 136 | 2007 |
| OH reactivity measurements within a boreal forest: evidence for unknown reactive emissions V Sinha, J Williams, J Lelieveld, TM Ruuskanen, MK Kajos, J Patokoski, ... Environmental science & technology 44 (17), 6614-6620, 2010 | 131 | 2010 |
| Influence of residential wood combustion on local air quality H Hellén, H Hakola, S Haaparanta, H Pietarila, M Kauhaniemi Science of the total environment 393 (2-3), 283-290, 2008 | 124 | 2008 |
| Variable emissions of microbial volatile organic compounds (MVOCs) from root-associated fungi isolated from Scots pine J Bäck, H Aaltonen, H Hellén, MK Kajos, J Patokoski, R Taipale, ... Atmospheric Environment 44 (30), 3651-3659, 2010 | 107 | 2010 |
| Long-term measurements of volatile organic compounds highlight the importance of sesquiterpenes for the atmospheric chemistry of a boreal forest H Hellén, AP Praplan, T Tykkä, I Ylivinkka, V Vakkari, J Bäck, T Petäjä, ... Atmospheric Chemistry and Physics 18 (19), 13839-13863, 2018 | 95 | 2018 |
| Importance of monoterpenes and isoprene in urban air in northern Europe H Hellén, T Tykkä, H Hakola Atmospheric Environment 59, 59-66, 2012 | 93 | 2012 |
| Determination of source contributions of NMHCs in Helsinki (60 N, 25 E) using chemical mass balance and the Unmix multivariate receptor models H Hellén, H Hakola, T Laurila Atmospheric Environment 37 (11), 1413-1424, 2003 | 93 | 2003 |
| Carbonyl compounds in boreal coniferous forest air in Hyytiälä, Southern Finland H Hellén, H Hakola, A Reissell, TM Ruuskanen Atmospheric chemistry and physics 4 (7), 1771-1780, 2004 | 88 | 2004 |
| Aromatic hydrocarbon and methyl tert-butyl ether measurements in ambient air of Helsinki (Finland) using diffusive samplers H Hellén, H Hakola, T Laurila, V Hiltunen, T Koskentalo Science of the total environment 298 (1-3), 55-64, 2002 | 87 | 2002 |
| Towards a comprehensive emission inventory of terpenoids from boreal ecosystems V Tarvainen, H Hakola, J Rinne, H Hellàn, S Haapanala Tellus B: Chemical and Physical Meteorology 59 (3), 526-534, 2007 | 81 | 2007 |
| Ambient air concentrations, source profiles, and source apportionment of 71 different C2− C10 volatile organic compounds in urban and residential areas of Finland H Hellen, H Hakola, L Pirjola, T Laurila, KH Pystynen Environmental science & technology 40 (1), 103-108, 2006 | 78 | 2006 |
