References

ACP

Atmospheric Chemistry and Physics

ACP

1680-7324

Copernicus GmbH

Göttingen, Germany

10.5194/acp-10-1361-2010

Technical Note: Measuring condensation sink and ion sink of atmospheric aerosols with the electrical low pressure impactor (ELPI)

Kuuluvainen

¹ Kannosto

¹ Virtanen

¹ Mäkelä

J. M.

¹ Kulmala

² Aalto

² Keskinen

Aerosol Physics Laboratory, Department of Physics, Tampere University of Technology, P.O. Box 692, 33101 Tampere, Finland

Department of Physical Sciences, Division of Atmospheric Sciences, University of Helsinki, P.O. Box 64, 00014 University of Helsinki, Finland

05 02 2010

10 3 1361 1368

This is an open-access article ditributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

This article is available from http://www.atmos-chem-phys.net/10/1361/2010/acp-10-1361-2010.html

The full text article is available as a PDF file from http://www.atmos-chem-phys.net/10/1361/2010/acp-10-1361-2010.pdf

We investigate the suitability of ELPI for condensation sink and ion sink measurements. The aim is to find the simple calibration factors by which the measured ELPI current can be converted to condensation or ion sinks. The calibration is based on DMPS and ELPI measurements within the period 15–25 May 2005 at a boreal forest site in Southern Finland. The values of condensation sink and ion sink were calculated from the DMPS size distributions using their theoretical definitions. After that the values were compared to theoretical and measured ELPI current, and calibration factors were specified. For condensation sink the calibration factor was found to be 7.27E-06 s−1 fA−1 and for ion sink 8.55E-06 s−1 fA−1. Simply by multiplying the total current of the outdoor ELPI by these factors, the values of condensation sink and ion sink can be measured.

References 1

Adachi, M., Kousaka, Y., and Okuyama, K.: Unipolar and bipolar diffusion charging of ultrafine aerosol particles, J. Aerosol Sci., 16, 109–123, 1985.

Bukowiecki, N., Kittelson, D B., Watts, W F., Burtscher, H., Weingartner, E., and Baltensperger, U.: Real-time characterization of ultrafine and accumulation mode particles in ambient combustion aerosols, J. Aerosol Sci., 33, 1139–1154, 2002.

Dekati Ltd.: Dekati Ltd.: ELPI charging efficiencies, http://www.dekati.com/cms/files/File/PDF/ELPIChargingefficiencies2007.pdf, last access: January 2010, 2007.

Eiceman, G A. and Karpas, Z.: Ion Mobility Spectrometry, CRC Press Taylor & Francis, Boca Raton, 2 Edn., 2005.

Eisele, F L. and Tanner, D J.: Identification of ions in continental air, J. Geophys. Res., 95, 20539–20550, 1990.

Fissan, H., Trampe, A., Neunman, S., Pui, D. Y H., and Shin, W G.: Rationale and principle of an instrument measuring lung deposition area, J. Nanopart. Res., 9, 53–59, 2006.

Fuchs, N A.: On the stationary charge distribution on aerosol particles in a bipolar ionic atmosphere, Geofisca Purae Applicata, 56, 185–193, 1963.

Fuchs, N A. and Sutugin, A G.: High-dispersed aerosols, in: Current Aerosol Research, edited by: Hidy, G M. and Brock, J., 1–60, Pergamon, Oxford, 1971.

Gäggeler, H W., Baltensperger, U., and Emmenegger, M.: The epiphanometer, a new device for continuous aerosol monitoring, J. Aerosol Sci., 20, 557–564, 1989.

Hõrrak, U., Aalto, P. P., Salm, J., Komsaare, K., Tammet, H., Mäkelä, J. M., Laakso, L., and Kulmala, M.: Variation and balance of positive air ion concentrations in a boreal forest, Atmos. Chem. Phys., 8, 655–675, 2008.

Hari, P. and Kulmala, M.: Station for Measuring Ecosystem�Atmosphere Relations (SMEAR II), Boreal Environ. Res., 10, 315-322, 2005.

Haywood, J M. and Shine, K P.: The effect of anthropogenic sulfate and soot aerosol on the clear sky planetary radiation budget, Geophys. Res. Lett., 22, 603-606, 1995.

Hoppel, W A. and Frick, G M.: Ion-aerosol attachment coefficients and the steady-state charge distribution on aerosols in a bipolar ion environment, Aerosol Sci. Tech., 5, 1–21, 1986.

Keskinen, J., Lehtimäki, M., and Graeffe, G.: Radon decay product attachment rates in dwellings, J. Aerosol Sci., 22, 765-771, 1991.

Keskinen, J., Pietarinen, K., and Lehtimäki, M.: Electrical low pressure impactor, J. Aerosol Sci., 23, 353–360, 1992.

Kulmala, M. and Kerminen, V.-M.: On the formation and growth of atmospheric nanoparticles, Atmos. Res., 90, 132–150, 2008.

Kulmala, M., Dal Maso, M., Mäkela, J M., Pirjola, L., Väkevä, M., Aalto, P., Miikkulainen, P., Hämeri, K., and O'Dowd, C D.: On the formation, growth and composition of nucleation mode particles, Tellus B, 53, 479–490, 2001.

Kulmala, M., Vehkamäki, H., Petäjä, T., Dal Maso, M., Lauri, A., Kerminen, V.-M., Birmili, W., and McMurry, P H.: Formation and growth rates of ultrafine atmospheric particles: A review of observations, J. Aerosol Sci., 35, 143-176, 2004.

Lohmann, U. and Feichter, J.: Global indirect aerosol effects: a review, Atmos. Chem. Phys., 5, 715–737, 2005.

Mäkelä, J M., Aalto, P., Jokinen, V., Pohja, T., Nissinen, A., Palmroth, S., Markkanen, T., Seitsonen, K., Lihavainen, H., and Kulmala, M.: Observations of ultrafine aerosol particle formation and growth in boreal forest, Geophys. Res. Lett., 24, 1219-1222, 1997.

Marjamäki, M., Keskinen, J., Chen, D R., and Pui, D. Y H.: Performance evaluation of the electrical low-pressure impactor (ELPI), J. Aerosol Sci., 31, 249–261, 2000.

Ntziachristos, L., Giechaskiel, B., Ristimäki, J., and Keskinen, J.: Use of a corona charger for the characterisation of automotive exhaust aerosol, J. Aerosol Sci., 35, 943–963, 2004.

Ntziachristos, L., Polidori, A., Phuleria, H., Geller, M D., and Sioutas, C.: Application of a diffusion charger for the measurement of particle surface area concentration in different environments, Aerosol Sci. Tech., 41, 571–580, 2007.

Pandis, S N., Baltensperger, U., Wolfenbarger, J K., and Seinfeld, J H.: Inversion of aerosol data from the epiphaniometer, J. Aerosol Sci., 22, 417–428, 1991.

Pirjola, L., Kulmala, M., Wilck, M., Bischoff, A., Stratmann, F., and Otto, E.: Formation of sulphuric acid aerosols and cloud condensation nuclei: an expression for significant nucleation and model comparison, J. Aerosol Sci., 30, 1079-1094, 1999.

Poling, B E., Prausnitz, J M., and O'Connel, J P.: The Properties of Gases and Liquids, McGraw-Hill, 2000.

Porstendörfer, J. and Mercer, T T.: Adsorption propability of atoms and ions on particle surfaces in submicrometer size range, J. Aerosol Sci., 9, 469–474, 1978.

Riipinen, I., Sihto, S.-L., Kulmala, M., Arnold, F., Dal Maso, M., Birmili, W., Saarnio, K., Teinilä, K., Kerminen, V.-M., Laaksonen, A., and Lehtinen, K. E. J.: Connections between atmospheric sulphuric acid and new particle formation during QUEST III�IV campaigns in Heidelberg and Hyytiälä, Atmos. Chem. Phys., 7, 1899–1914, 2007.

Shin, W G., Pui, D. Y H., Fissan, H., Neumann, S., and Trampe, A.: Calibration and numerical simulation of Nanoparticle Surface Area Monitor (TSI Model 3550 NSAM), J. Nanopart. Res., 9, 61–69, 2007.

Siegmann, K. and Siegmann, H C.: Fast and reliable "in situ" evaluation of particles and their surfaces with special reference to diesel exhaust, Tech. Rep. 2000-01-1995, SAE, 2000.

Vohra, K G., Subba Ramu, M C., and Vasudevan, K N.: \textitNucleation of Water Cluster Ions, reports Bhabba Atomic Research Centre, Bombay, 1969.

Wang, S C. and Flagan, R C.: Scanning electrical mobility spectrometer, Aerosol Sci. Tech., 13, 230–240, 1990.

Woo, K.-S., Chen, D.-R., Pui, D. Y H., and Wilson, W E.: Use of continuous measurements of integral aerosol parameters to estimate particle surface area, Aerosol Sci. Tech., 34, 57–65, 2001.