Naslov
Organic compounds in particulate matter collected at Plitvice Lakes

Autori
Sopčić, Suzana ; Jakovljević, Ivana ; Pehnec, Gordana

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
28th Croatian Meeting of Chemists and Chemical Engineers / Rogošić, Marko - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI), 2023, 51-51

Skup
28th Croatian Meeting of Chemists and Chemical Engineers

Mjesto i datum
Rovinj, Hrvatska, 28.03.2023. - 31.03.2023

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
carbohydrates ; PAH ; PM10

Sažetak
The origin of organic compounds in the air can be various and therefore an experimental and statistical analysis of particulate matter is crucial for their identification. This work focuses on organic compounds such as carbohydrates and polycyclic aromatic hydrocarbons (PAH). The sources of carbohydrates can be related to anthropogenic activities, essentially biomass burning, wood combustion, forest fires, and agricultural waste burning, but they are also released during primary biological activities of fungal spores, microorganisms, bacteria, and pollen. Along with pyrogenic sources, a large contributor to PAH emissions is the widespread petrogenic sources from households and traffic due to incomplete petroleum combustion. To distinguish between different sources of PAHs and carbohydrates in particulate matter, it is important to monitor their levels during a wider period when natural and anthropogenic activity trends are different. In this study, PM10 particulate matter samples (particulate matter with a diameter smaller than 10 µm) were collected seasonally at a background measuring station located at Plitvice Lakes. Samples were analyzed by two chromatographic techniques ; high-performance anion-exchange chromatography with pulsed amperometric detection and high-performance liquid chromatography with a fluorescence detector. The results were statistically compared using Spearman correlation, factor analysis, and principal component analysis. Significant seasonal variations of organic compound levels and particulate matter levels were observed. Generally, the most pronounced carbohydrates in the particulate matter were levoglucosan, arabitol, mannitol, and glucose. The concentrations of PAHs were two orders of magnitude smaller compared to carbohydrates values but were present in all the samples. The maximum concentrations were detected in the winter season for levoglucosan and benzo(b)fluoranthene. The Spearman correlation revealed a strong correlation (ρ > 0.6) between PAHs and carbohydrates related to biomass burning in winter and autumn, while in the warmer seasons, their correlations differ. Factor analysis and principal component analysis suggested at least three different sources of PAHs and carbohydrates in particulate matter

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Javno zdravstvo i zdravstvena zaštita

POVEZANOST RADA