Naslov
Polycyclic aromatic hydrocarbons in PM10, PM2.5 and PM1 particle fractions and their carcinogenic activity

Autori
Pehnec, Gordana ; Jakovljević, Ivana ;

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

Izvornik
Book of Abstarcts Special Issue of Bulletin of the Chemists and Technologists of Bosnia and Herzegovina / Korać, Fehim ; Maksimović, Milka ; Sofić, Emin ; Galijašević, Semira ; Avdić, Nurudin ; - Sarajevo : Faculty of Science, Sarajevo, Bosnia and Herzegovina, 2018, 14-14

Skup
3rd International Congress of Chemists and Chemical Engineers of Bosnia and Herzegovina

Mjesto i datum
Sarajevo, Bosna i Hercegovina, 19.10.2018. - 21.10.2018

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
benzo(a)pyrene ; PAHs ; seasonal variations ; toxic equivalency factors ; urban location ;

Sažetak
Polycyclic aromatic hydrocarbons (PAHs) are one of the first atmospheric pollutants identified as suspected carcinogens. In ambient air, PAHs with higher molecular weights (more than 4 rings) are mostly bounded to particles. Particle size plays an important role in assessing health risks. The aim of this study was to compare concentrations of PAHs bound to particle fractions PM10, PM2.5 and PM1 (particles with a diameter smaller than 10 μm, 2.5 μm and 1 μm, respectively) as well as to estimate their carcinogenic potency. Measurements of ten PAHs were carried out in 2014 at urban location in the northern part of Zagreb, Croatia. 24-hour samples of PM10, PM2.5 and PM1 particle fraction were collected, forty per season. The PAH analysis was performed using high performance liquid chromatography with a fluorescence detector. The total carcinogenic potency (TCP) of PAHs was estimated by calculating benzo(a)pyrene equivalent concentrations using toxic equivalence factors from the literature. The average TCPs for the overall period were 4.287, 1.898 and 1.630 ng/m3 for PM10, PM2.5 and PM1, respectively. The lowest TCP was recorded in summer and the highest in winter. The highest contribution to the TCP were from benzo(a)pyrene, dibenzo(a, h)antrachene, indeno(1, 2, 3, cd)pyrene and benzo(b)fluoranthene and altogether they contributed between 91 and 94 % in all fractions and seasons.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Javno zdravstvo i zdravstvena zaštita

POVEZANOST RADA