Hygroscopic Growth of Atmospheric Aerosol Sampled in Prague 2008 Using Humidity Controlled Inlets

0352970 - ÚCHP 2011 RIV NL eng J - Journal Article
Štefancová, Lucia - Schwarz, Jaroslav - Maenhaut, W. - Chi, X. - Smolík, Jiří
Hygroscopic Growth of Atmospheric Aerosol Sampled in Prague 2008 Using Humidity Controlled Inlets.
Atmospheric Research. Roč. 98, 2-4 (2010), s. 237-248. ISSN 0169-8095. E-ISSN 1873-2895
R&D Projects: GA ČR GA205/09/2055; GA MŠMT OC 106; GA MŠMT ME 941
Institutional research plan: CEZ:AV0Z40720504
Keywords : atmospheric aerosols * mass-size distribution * hydroscopis growth
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 1.597, year: 2010

Atmospheric aerosol was sampled at different humidity conditions using two 7-stage modifiedBLPI impactors. Dry particles were obtained at 20% RH. Wet particles were humidified inside diffuse humidifier with output 85–90% RH. 11 parallel intakes of dry and wet aerosol were done during winter campaign and 10 during summer one. The samples were processed by gravimetric method, ion chromatography and WSOC analysis. The average mass concentration sampled in winter was 34.4 μg/m3 at dry, whereas the average mass concentration obtained at wet conditions was slightly higher 37.2 μg/m3. The average of summer concentration was 21.4 μg/m3 at dry conditions, and 21.6 μg/m3 at wet conditions.
Permanent Link: http://hdl.handle.net/11104/0192335