Your browser does not support JavaScript!

Home    Οργανικός διαλυτός άνθρακας και οργανικό διαλυτό άζωτο σε αστικές και απομακρυσμένες περιοχές της Κύπρου : πηγές, κατανομή μεγέθους και εποχική διακύμανση  

Results - Details

Add to Basket
[Add to Basket]
Identifier 000391191
Title Οργανικός διαλυτός άνθρακας και οργανικό διαλυτό άζωτο σε αστικές και απομακρυσμένες περιοχές της Κύπρου : πηγές, κατανομή μεγέθους και εποχική διακύμανση
Alternative Title Water-soluble organic carbon and nitrogen in urban and remote location in Cyprus : sources, size distribution and seasonal variability
Author Βαργιακάκη Ευθυμία Ν.
Thesis advisor Μιχαλόπουλος, Νικόλαος
Reviewer Στεφάνου, Ευριπίδης
Κανακίδου, Μαρία
Abstract This work deals with the study of water-soluble organic carbon (WSOC) and nitrogen (WSON) as well their C/N ratio in aerosols in Cyprus during a year period (January to December 2011). The samples originate from two different areas of Cyprus, representing different environments (Ag. Marina, a natural background site and Nicosia, an urban site), which help us to identify the relative contribution of local and regional sources in WSOC and WSON levels. Another aim of the study is the identification of their sources, the process governing their presence in the atmosphere as well as their spatial and temporal distribution. WSOC concentrations for Ag. Marina and Nicosia average 1,02 ±0,22 μg/m3 and 1,98 ± 1,00 μg/m3 respectively, with contribution of WSOC to total organic carbon of about 52% and 34% respectively. WSON concentrations for Ag. Marina and Nicosia are on average of 9,5 ±5,8 nmol/m3 and 12,48 ±2,41 nmol/m3 respectively, with the contribution of WSON to total organic nitrogen of about 13% and 18% respectively. In addition, C/N ratio for Ag. Marina and Nicosia was calculated to be of 10,5 ± 5,5 and 11,8 ± 4,5 respectively, displaying seasonal variation with winter maximum and summer minimum ratios. Both WSOC and WSON concentrations in Ag.Marina depict a distinct variability characterized by higher levels during summer due to the high temperature and photochemistry, absence of wet deposition and enhanced transport of aerosols from remote sources. On the other hand, the WSOC and WSON concentrations in the region of Nicosia have similar concentrations with the Ag.Marina during summer, but much higher during winter. This indicates that Nicosia is free of notable local pollution during Summer. On the other hand, the enhancement in WSOC and WSON during winter months, reflects an increased contribution from local sources (household heating and transport).
Language Greek
Issue date 2015-03-20
Collection   School/Department--School of Sciences and Engineering--Department of Chemistry--Post-graduate theses
  Type of Work--Post-graduate theses
Views 293

Digital Documents
No preview available

Download document
View document
Views : 15