Assessment of polycyclic aromatic hydrocarbons in three environmental components from a tropical estuary in Northeast Brazil
| Autor: | Morgana Frena, Flaviana C. Damasceno, Laiane O. Carmo, Ewerton Santos, Michel R.R. Souza, Antônio Rodrigues Vilela Júnior, Jaiane S. Suzarte, Laiane S. Soares, Lukas G.G.V. Santos, Marcelo da Rosa Alexandre, Laiza Canielas Krause |
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| Rok vydání: | 2020 |
| Předmět: |
Fluoranthene
Anthracene geography Geologic Sediments geography.geographical_feature_category Bioconcentration Estuary Aquatic Science Contamination Oceanography Pollution chemistry.chemical_compound chemistry Environmental chemistry Pyrene Polycyclic Aromatic Hydrocarbons Estuaries Surface water Brazil Water Pollutants Chemical Naphthalene Environmental Monitoring |
| Zdroj: | Marine pollution bulletin. 171 |
| ISSN: | 1879-3363 |
| Popis: | The evaluation of occurrence, risk quotient (RQ), bioaccumulation factor (BAF), and sources of PAH was conducted in Sergipe-Poxim estuarine system. PAH distribution that ranged from 7.1 to 30.9 ng L−1 (surface water, SW), 5.4 to 19.5 ng g−1 (sediment, S), and 4.3 to 18.1 ng g−1 (oyster, O), characterized the environment with low contamination; 2-3 (SW), 5-6 (S), and 4 (O) PAH rings accounted for 54.5%, 68.7%, and 87.7%, respectively, along with naphthalene (SW), dibenzo(a,h)anthracene (S), and pyrene (O) as the prevailing compounds. PCA suggested the predominance of particular groups related to SW (LMW-PAH), S (HMW-PAH), and O (pyrene and fluoranthene). Furthermore, one sample of O presented a high PAH bioavailability as shown through the BAF, with emphasis on pyrene (BAF = 26.8). The RQ showed a low to moderate range in SW and S; hence, in-depth information about the possible toxic effect in organisms of this region is required. |
| Databáze: | OpenAIRE |
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