| Title | OCCURRENCE OF PRIORITY HAZARDOUS PAHS IN WATER, SUSPENDED PARTICULATE MATTER, SEDIMENT AND COMMON EELS (ANGUILLA ANGUILLA) IN THE URBAN STRETCH OF THE TIBER RIVER (ITALY) |
| Abstract | This study investigated the occurrence of polycyclic aromatic hydrocarbons (PAHs) in water, suspended
particulate matter (SPM), bed sediment and common eels (Anguilla anguilla) in the urban stretch of the
River Tiber (Italy). The selected PAHs, fluoranthene, benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(
a)pyrene, benzo(g,h,i)perylene, indeno(1,2,3-cd)pyrene, belong to the EC priority list of dangerous
substances. SPM was found to be the most polluted compartment, with values ranging from 1663.1 to
15472.9 ng g1 (R6PAHs), followed by sediment samples, from 157.8 to 271.6 ng g1 and by aqueous
samples, from 23.9 to 72.0 ng L1. The distribution coefficient (Kd) showed a good correlation with particle
organic carbon (OC) content, while Koc values experimentally measured for sediment/SPM deviated
from those predicted by Kow, implying that for very hydrophobic compounds, Kow alone may not be an
appropriate descriptor of all the thermodynamic forces involved in their sorption to aquatic particles.
Some selected PAH ratios indicated that PAHs in the River Tiber come mainly from pyrolitic sources
and vehicular traffic. Concentrations of individual PAHs in muscles of common eels varied from 0.8 to
7.0 ng g1 wet wt. and the calculated toxicity equivalent concentration (TEQ, 1.8 ng g1 wet wt.) of total
PAHs fell below the recommended screening value (SV) in US EPA guidelines, suggesting no concern for
human consumption. |
| Source | Chemosphere 81, pp. 1386–1392 |
| Keywords | PAHsRiver TiberwaterSuspended particulate matterEuropean eels |
| Journal | Chemosphere |
| Editor | Elsevier, Oxford, Regno Unito |
| Year | 2010 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.chemosphere.2010.09.027 |
| Authors | PATROLECCO L.; ADEMOLLO N.; CAPRI S.; PAGNOTTA R.; POLESELLO S. |
| Text | 42410 2010 10.1016/j.chemosphere.2010.09.027 PAHs River Tiber water Suspended particulate matter European eels OCCURRENCE OF PRIORITY HAZARDOUS PAHS IN WATER, SUSPENDED PARTICULATE MATTER, SEDIMENT AND COMMON EELS ANGUILLA ANGUILLA IN THE URBAN STRETCH OF THE TIBER RIVER ITALY PATROLECCO L.; ADEMOLLO N.; CAPRI S.; PAGNOTTA R.; POLESELLO S. Patrolecco Luisa, Ademollo Nicoletta, Capri Silvio, Pagnotta Romano, Water Research Institute, National Research Council, Via Salaria Km 29.300, 00015 Monterotondo Scalo, Rome, Italy Polesello Stefano Water Research Institute, National Research Council, Via del Mulino 19, 20047 Brugherio, Milano, Italy This study investigated the occurrence of polycyclic aromatic hydrocarbons PAHs in water, suspended particulate matter SPM , bed sediment and common eels Anguilla anguilla in the urban stretch of the River Tiber Italy . The selected PAHs, fluoranthene, benzo b fluoranthene, benzo k fluoranthene, benzo a pyrene, benzo g,h,i perylene, indeno 1,2,3 cd pyrene, belong to the EC priority list of dangerous substances. SPM was found to be the most polluted compartment, with values ranging from 1663.1 to 15472.9 ng g1 R6PAHs , followed by sediment samples, from 157.8 to 271.6 ng g1 and by aqueous samples, from 23.9 to 72.0 ng L1. The distribution coefficient Kd showed a good correlation with particle organic carbon OC content, while Koc values experimentally measured for sediment/SPM deviated from those predicted by Kow, implying that for very hydrophobic compounds, Kow alone may not be an appropriate descriptor of all the thermodynamic forces involved in their sorption to aquatic particles. Some selected PAH ratios indicated that PAHs in the River Tiber come mainly from pyrolitic sources and vehicular traffic. Concentrations of individual PAHs in muscles of common eels varied from 0.8 to 7.0 ng g1 wet wt. and the calculated toxicity equivalent concentration TEQ, 1.8 ng g1 wet wt. of total PAHs fell below the recommended screening value SV in US EPA guidelines, suggesting no concern for human consumption. 81 Articolo Pubblicato Pubblicazione Internazionale ISI CHEM11282.pdf Articolo in rivista Elsevier 0045 6535 Chemosphere Chemosphere Chemosphere Chemosphere. Chemosphere. Environmental chemistry, Chemosphere. Persistent organic pollutants and dioxins, Chemosphere. Environmental toxicology and risk assessment, Chemosphere. Science for Environmental toxicology, nicoletta.ademollo ADEMOLLO NICOLETTA stefano.polesello POLESELLO STEFANO luisa.patrolecco PATROLECCO LUISA romano.pagnotta PAGNOTTA ROMANO silvio.capri CAPRI SILVIO TA.P03.011.004 Macrocostituenti inorganici ed inquinanti organici emergenti nel ciclo idrologico in aree remote e densamente abitate |
