Informace o publikaci

Atmospheric PAHs in rural, urban, industrial and beach locations in Buenos Aires Province, Argentina: sources and health risk assessment


ARIAS Andres H. POZO Karla Andrea ALVAREZ Monica B. PŘIBYLOVÁ Petra TOMBESI Norma B.

Rok publikování 2022
Druh Článek v odborném periodiku
Fakulta / Pracoviště MU

Přírodovědecká fakulta

Klíčová slova PAHs; Passive sampling; PUF disks; Cancer risk; Coastal pollution; Atlantic; Argentina
Popis The first atmospheric PAHs levels and associated inhalation cancer risk were assessed over southwest Buenos Aires region by deploying PUF disk PAS samplers. Eight sampling location included coastal zones, touristic beaches, and rural inland areas were considered. PUF disks were fortified with surrogate standards and extracted by automated Soxhlet prior to GC-MS analysis. sigma(16) PAHs ranged from 1.13 to 44.5 ng m(-3) (10.3 +/- 9.8), while urban locations showed up to 10 times higher PAH levels than rural or beach locations. Direct sources of PAHs, such as intensive vehicle traffic, heating, and general combustion activities, were identified. PAHs with four to six rings (46.62%) were predominantly Flt, Pyr, BbF, and BkF, and carcinogenic risk was expressed by BaP (0.10 +/- 0.07 ng m(-3)) and BaPTEQs (0.26 +/- 0.22 ng m(-3)). Inhalation ECR (2.23E-5, WHO) presented the lowest risk at beach locations. Molecular ratios and PCA showed a strong dominance in pyrolytic sources, such as biomass and coal combustion, with a particular signature in fires at inland locations. Overall, this study demonstrated that PUF disk passive air sampling provided a sound and simple approach for tracking air PAHs, their sources and public health risks, bringing a cost-effective tool for pollution control measures, even at small and remote towns. This is particularly relevant in extensive countries with medium or low income, such as Argentina.

Používáte starou verzi internetového prohlížeče. Doporučujeme aktualizovat Váš prohlížeč na nejnovější verzi.

Další info