Spatial variations of surface snow chemistry during two austral summers in western Dronning Maud Land, AntarcticaKÄRKÄS, Eija; TEINILÄ, Kimmo; VIRKKULA, Aki et al.Atmospheric environment (1994). 2005, Vol 39, Num 8, pp 1405-1416, issn 1352-2310, 12 p.Article

Below-cloud scavenging of aerosol particles by snow at an urban site in FinlandPARAMONOV, Mikhail; GRÖNHOLM, Tiia; VIRKKULA, Aki et al.Boreal environment research. 2011, Vol 16, Num 4, pp 304-320, issn 1239-6095, 17 p.Article

Summer concentrations of NMHCs in ambient air of the Arctic and AntarcticHELLÉN, Heidi; LECK, Caroline; PAATERO, Jussi et al.Boreal environment research. 2012, Vol 17, Num 5, pp 385-397, issn 1239-6095, 13 p.Article

A decade of trace gas measurements using DOAS in Finnish LaplandVIRKKULA, Aki; TEINILÄ, Kimmo; HILLAMO, Risto et al.Boreal environment research. 2003, Vol 8, Num 4, pp 351-363, issn 1239-6095, 13 p.Article

Number size distributions and concentrations of the continental summer aerosols in Queen Maud Land, AntarcticaKOPONEN, Ismo K; VIRKKULA, Aki; HILLAMO, Risto et al.Journal of geophysical research. 2003, Vol 108, Num D18, pp AAC8.1-AAC8.10, issn 0148-0227Article

Charged particle size distributions and analysis of particle formation events at the Finnish Antarctic research station AboaVIRKKULA, Aki; HIRSIKKO, Anne; VANA, Marko et al.Boreal environment research. 2007, Vol 12, Num 3, pp 397-408, issn 1239-6095, 12 p.Article

Application of the Volatility-TDMA Technique to Determine the Number Size Distribution and Mass Concentration of Less Volatile ParticlesFREY, Anna; ROSE, Diana; WEHNER, Birgit et al.Aerosol science and technology (Print). 2008, Vol 42, Num 10, pp 817-828, issn 0278-6826, 12 p.Article

Number size distributions and concentrations of marine aerosols: Observations during a cruise between the English Channel and the coast of AntarcticaKOPONEN, Ismo K; VIRKKULA, Aki; HILLAMO, Risto et al.Journal of geophysical research. 2002, Vol 107, Num D24, pp AAC6.1-AAC6.8, issn 0148-0227Article

The Reno Aerosol Optics study: An evaluation of Aerosol absorption measurement methodsSHERIDAN, Patrick J; ARNOTT, W. Patrick; VARMA, Ravi et al.Aerosol science and technology. 2005, Vol 39, Num 1, pp 1-16, issn 0278-6826, 16 p.Article

Evaluation of multiangle absorption photometry for measuring aerosol light absorptionPETZOLD, Andreas; SCHLOESSER, Herbert; SHERIDAN, Patrick J et al.Aerosol science and technology. 2005, Vol 39, Num 1, pp 40-51, issn 0278-6826, 12 p.Article

A simple procedure for correcting loading effects of aethalometer dataVIRKKULA, Aki; MÄKELÄ, Timo; HILLAMO, Risto et al.Journal of the Air & Waste Management Association (1995). 2007, Vol 57, Num 10, pp 1214-1222, issn 1096-2247, 9 p.Article

Chemical size distributions of boundary layer aerosol over the Atlantic Ocean and at an Antarctic siteVIRKKULA, Aki; TEINILÄ, Kimmo; HILLAMO, Risto et al.Journal of geophysical research. 2006, Vol 111, Num D5, issn 0148-0227, D05306.1-D05306.14Article

Airborne measurements over the boreal forest of southern Finland during new particle formation events in 2009 and 2010SCHOBESBERGER, Siegfried; VÄÄNÄNEN, Riikka; AALTO, Pasi P et al.Boreal environment research. 2013, Vol 18, Num 2, pp 145-163, issn 1239-6095, 19 p.Article

Continental impact on marine boundary layer coarse particles over the Atlantic Ocean between Europe and AntarcticaNIEMI, Jarkko V; TERVAHATTU, Heikki; VIRKKULA, Aki et al.Atmospheric research. 2005, Vol 75, Num 4, pp 301-321, issn 0169-8095, 21 p.Article

Modification, calibration and a field test of an instrument for measuring light absorption by particlesVIRKKULA, Aki; AHLQUIST, Norman C; COVERT, David S et al.Aerosol science and technology. 2005, Vol 39, Num 1, pp 68-83, issn 0278-6826, 16 p.Article

Optical and Chemical Characterization of Aerosols Emitted from Coal, Heavy and Light Fuel Oil, and Small-Scale Wood CombustionFREY, Anna K; SAARNIO, Karri; RAUTIAINEN, Jani et al.Environmental science & technology. 2014, Vol 48, Num 1, pp 827-836, issn 0013-936X, 10 p.Article

Saharan dust absorption and refractive index from aircraft-based observations during SAMUM 2006PETZOLD, Andreas; RASP, Katharina; VIRKKULA, Aki et al.Tellus. Series B, Chemical and physical meteorology. 2009, Vol 61, Num 1, pp 118-130, issn 0280-6509, 13 p.Article

A three-wavelength optical extinction cell for measuring aerosol light extinction and its application to determining light absorption coefficientVIRKKULA, Aki; AHLQUIST, Norman C; COVERT, David S et al.Aerosol science and technology. 2005, Vol 39, Num 1, pp 52-67, issn 0278-6826, 16 p.Article