SIZE-DISTRIBUTIONS OF WATER SOLUBLE COMPONENTS OF ATMOSPHERIC AEROSOL MEASURED WITH A MOUDI IMPACTOR

D. Contini, D. Cesari, A. Genga, M. Siciliano, P. Ielpo, M. R. Guascito, M. Conte
Abstract:
Understanding climate and health effects of atmospheric aerosol is an important aspect of research. These effects are strongly related to the size-distribution of particles and of chemical components contained in aerosol. In this work aerosol was collected, in an urban background site in Lecce, using a 10-stages Micro-Orifice Uniform Deposit Impactor (MOUDI). Collected samples were analysed to evaluate the size-segregated composition of water soluble ions (Ca2+, Mg2+, K+, NH4+, Na+, SO42-, NO3- and Cl-), using High Performance Ion Chromatography (HPIC), and of water soluble organic (WSOC) and inorganic (WSIC) carbon, using a TOC analyzer. Collected data were used to estimate the losses in the impactor, to characterise the size distributions of the different species and to obtain information on the main aerosol sources acting on the studied area.
Keywords:
MOUDI, aerosol size-distributions, sizesegregated composition, losses in impactor
Download:
IMEKO-TC19-2013-002.pdf
DOI:
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Event details
IMEKO TC:
TC19
Event name:
Protecting Environment, Climate Changes and Pollution Control
Title:
4th Symposium on Environmental Instrumentation and Measurements
Place:
Lecce, ITALY
Time:
03 June 2013 - 04 June 2013