IONIC COMPOSITION OF PM2, 5 PARTICLE FRACTION AT A COASTAL URBAN BACKGROUND SITE IN CROATIA (CROSBI ID 682683)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Gluščić, Valentina ; Čačković, Mirjana ; Pehnec, Gordana ; Bešlić, Ivan
engleski
IONIC COMPOSITION OF PM2, 5 PARTICLE FRACTION AT A COASTAL URBAN BACKGROUND SITE IN CROATIA
The aim of this study was to determine the mass concentration and the content of water-soluble anions (Cl-, NO3-, SO42-) and cations (Na+, NH4+, K+, Mg2+, Ca2+) in PM2.5 particle fraction, to investigate their relationship and there contribution to the total PM2.5 mass measured at site located in Rijeka, Croatia. Rijeka is the third-largest city in Croatia at Kvarner Bay on Adriatic Sea with developed petrochemical and metal industry, shipyards, oil refining and transportation especially maritime. Measuring site is a part of Croatian monitoring network for air quality classified as urban background site. Daily samples of PM2.5 particle fraction were collected over a year 2017 on PTFE filters using the low volume sampler Sven Leckel SEQ 47/50. Mass concentration of PM2.5 particle fraction was determined by gravimetric according to the standard HRN EN 12341:2014 (EN 12341:2014). The content of water-soluble inorganic anions and cations were determined using Thermo Scientific ICS-5000 capillary ion chromatograph. Results show that annual average PM2.5 mass concentration was 9.65 µg/m3 and didn't exceed limit value of 25 µg/m3 given by the Regulation on the level of pollutants in air (OG No. 117/12). The annual average mass concentrations of ions in PM2.5 particle fraction was in order SO42- > NH4+ > NO3- > Ca2+ > K+ > Na+ > Cl- > Mg2+. Contribution of total anion mass and cation mass to the total PM2, 5 mass were 25.4% and 12.8%, respectively. Contribution of each anion mass to the total anion mass were 84.8% , 14.2% and 0.9% for SO42-, NO3- and Cl- respectively, while contribution of each cation mass to the total cation mass were 6.6% , 72% , 6.2% , 1% and 13.3% for Na+, NH4+, K+, Mg2+ and Ca2+, respectively. The prediction of the pollutant sources we ran the principal component analysis (PCA) which was performed using the statistical packages STATISTICA 13.0. After varimax rotation, the obtained four principal component factors were found to account for 86% of the variance. Factor loadings > 0.7 were considered significant.
measuring site ; anions ; cations ; PCA
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
nije evidentirano
Podaci o prilogu
63-63.
2019.
objavljeno
Podaci o matičnoj publikaciji
18th World Clean Air Congress 2019
Incecik, Selahattin ; Toros, Huseyin ; Topcu, Sema ; Ozturk, Busra ; Duzgun, Cansu ; Kursun, Ilayda
Istanbul: TUNCAP and IUAPPA
Podaci o skupu
18th World Clean Air Congress (WCAC 2019)
predavanje
23.09.2019-27.09.2019
Istanbul, Turska