Naslov
PAHs in PM1 Particle Fraction at an Urban Location in Croatia

Autori
Jakovljević, Ivana ; Sever Štrukil, Zdravka ; Godec, Ranka ; Pehnec, Gordana

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

Izvornik
18th World Clean Air Congress 2019 / Incecik, Selahattin ; Toros, Huseyin ; Topcu, Sema ; Ozturk, Busra ; Duzgun, Cansu ; Kursun, Ilayda - Istanbul : TUNCAP and IUAPPA, 2019, 198-198

Skup
18th World Clean Air Congress (WCAC 2019)

Mjesto i datum
Istanbul, Turska, 23.09.2019. - 27.09.2019

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
benzo(a)pyrene ; HPLC ; polycyclic aromatic hydrocarbons ; particle fraction

Sažetak
Airborne particles are composed of inorganic species and organic compounds. Particle pollution includes “inhalable coarse particles” with diameters larger than 2.5 μm and smaller than 10 μm and “fine particles” with diameters of 2.5 μm or smaller. PM1 particles, with an aerodynamic diameter smaller than 1 μm, are considered to be of importance in the context of adverse health effects. The mass concentration of particulate matter (PM) is not the only important parameter for the assessment of health risks of atmospheric pollution. Many compounds bound to particulate matter, such as polycyclic aromatic hydrocarbons (PAH), are suspected to be genotoxic, mutagenic and carcinogenic. PAHs are organic compounds that consist of two or more aromatic rings. More than 500 PAHs have been identified in the air and they were among the first pollutants recognized as potential carcinogens. PAHs are products of the incomplete combustion of fossil fuels and other organic materials and originate from a variety of natural and industrial processes. In this study, PAHs in PM1 particle fraction were measured during one year (1/1/2018–31/12/2018). The measuring station was located in the northern residential part of Zagreb, the Croatian capital, close to a street with modest traffic. 24-hour samples of PM1 particle fraction were collected on quartz filters from about 50 m3 air using a low-volume sampler. The analysis was performed using a high performance liquid chromatograph (HPLC) with a fluorescence detector and time programmed changes in excitation and emission. Samples were analysed for the following PAHs: fluoranthene (Flu), pyrene (Pyr), benzo(a)anthracene (BaA), chrysene (Chry), benzo(j)fluoranthene (BjF), benzo(b)fluoranthene (BbF), benzo(k)fluoranthene (BkF), benzo(a)pyrene (BaP), dibenzo(ah)anthracene (DahA), benzo(ghi)perylene (BghiP), and indeno(1, 2, 3- cd)pyrene (IP). Significant differences were found between PAH concentrations during cold (January- March, October-December) and warm (April-September) periods of the year. During the cold period, BbF had the highest mass concentrations (0.215– 3.412 ngm-3), while during the warm period the highest mass concentrations was recorded for BghiP (0.067–0.277 ngm-3). During both periods, DahA had the lowest mass concentrations. The average monthly mass concentrations of BaP ranged from 0.038 ngm-3 in June to 2.826 ngm-3 in December (the annual average was 0.765 ngm- 3). In general, during the whole year mass concentrations of PAH characteristic for car exhaust (BghiP, IP, BbF) were higher than concentrations of Flu and Pyr, which originate mostly from domestic heating and biomass burning.

Izvorni jezik
Engleski

Znanstvena područja
Javno zdravstvo i zdravstvena zaštita

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