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

被引：12

作者：

Kuuluvainen, H. ^{[1
]}

Kannosto, J. ^{[1
]}

Virtanen, A. ^{[1
]}

Makela, J. M. ^{[1
]}

Kulmala, M. ^{[2
]}

Aalto, P. ^{[2
]}

Keskinen, J. ^{[1
]}

机构：

[1] Tampere Univ Technol, Dept Phys, Aerosol Phys Lab, FIN-33101 Tampere, Finland

[2] Univ Helsinki, Div Atmospher Sci, Dept Phys Sci, FIN-00014 Helsinki, Finland

来源：

ATMOSPHERIC CHEMISTRY AND PHYSICS | 2010年 / 10卷 / 03期

关键词：

PARTICLE FORMATION; SULFURIC-ACID; ULTRAFINE; GROWTH; NUCLEATION; CHARGER; RATES;

D O I：

10.5194/acp-10-1361-2010

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

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.

引用

页码：1361 / 1368

页数：8

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