| Title | PARTITION OF NONYLPHENOL AND RELATED COMPOUNDS AMONG DIFFERENT AQUATIC COMPARTMENTS IN TEVERE RIVER (CENTRAL ITALY) |
| Abstract | Nonylphenol (NP), nonylphenol mono- and di-ethoxylate (NP1EO, NP2EO) and bisphenol
A (BPA) were determined in water, suspended particulate matter (s.p.m.) and bed sediment collected
from the most polluted stretch of Tiber river (Italy) in the neighbourhood of Rome. Analytes were
recovered from water samples by solid-phase extraction (SPE) on Si-C18 cartridges and analysed by
HPLC with fluorescence detection. Solid samples were extracted by using an aqueous solution of the
non-ionic surfactant Tween 80.
Results indicated that 2-42% of NP, 9-45% of NP1EO, 11-18% of NP2EO and 4-62% of BPA
respectively occurred in the suspended phase. In general, for all compounds a higher affinity for s.p.m.
than for bed sediments was observed, reflecting differences in the nature of particles and in their sorption
capacity for organic micro-pollutants. The partition of target compounds in river compartments
was affected by differences in hydrological conditions between the two sampling campaigns. Run-off
from the basin or resuspension/redissolution from sediments was an important source of nonylphenol
and bisphenolAduring high discharge regimes. Partition coefficients of compounds (log Koc) between
water and s.p.m. were calculated under stable flow condition. Koc values, experimentally measured in
the river, were higher than those predicted by Kow, implying that specific chemical interaction could
occur in the sorption mechanisms for these group of compounds. |
| Source | Water, air and soil pollution (Print) 172, pp. 151–166 |
| Keywords | NonylphenolBisphenol APartitioningRiver WaterSuspended Particles |
| Journal | Water, air and soil pollution (Print) |
| Editor | Kluwer Academic Publishers, Dordrecht, Paesi Bassi |
| Year | 2006 |
| Type | Articolo in rivista |
| DOI | 10.1007/s11270-005-9067-9 |
| Authors | PATROLECCO L., CAPRI S., DE ANGELIS S., PAGNOTTA R., POLESELLO S., VALSECCHI S. |
| Text | 42100 2006 10.1007/s11270 005 9067 9 Nonylphenol Bisphenol A Partitioning River Water Suspended Particles PARTITION OF NONYLPHENOL AND RELATED COMPOUNDS AMONG DIFFERENT AQUATIC COMPARTMENTS IN TEVERE RIVER CENTRAL ITALY PATROLECCO L., CAPRI S., DE ANGELIS S., PAGNOTTA R., POLESELLO S., VALSECCHI S. Patrolecco Luisa, Capri Silvio, De Angelis Silvia, Pagnotta Romano, Water Research Institute CNR, via Reno 1, 00198 Roma, Italy; Polesello stefnao, Valsecchi Sara, Water Research Institute CNR, via della Mornera 25, 20047 Brugherio MI , Italy Nonylphenol NP , nonylphenol mono and di ethoxylate NP1EO, NP2EO and bisphenol A BPA were determined in water, suspended particulate matter s.p.m. and bed sediment collected from the most polluted stretch of Tiber river Italy in the neighbourhood of Rome. Analytes were recovered from water samples by solid phase extraction SPE on Si C18 cartridges and analysed by HPLC with fluorescence detection. Solid samples were extracted by using an aqueous solution of the non ionic surfactant Tween 80. Results indicated that 2 42% of NP, 9 45% of NP1EO, 11 18% of NP2EO and 4 62% of BPA respectively occurred in the suspended phase. In general, for all compounds a higher affinity for s.p.m. than for bed sediments was observed, reflecting differences in the nature of particles and in their sorption capacity for organic micro pollutants. The partition of target compounds in river compartments was affected by differences in hydrological conditions between the two sampling campaigns. Run off from the basin or resuspension/redissolution from sediments was an important source of nonylphenol and bisphenolAduring high discharge regimes. Partition coefficients of compounds log Koc between water and s.p.m. were calculated under stable flow condition. Koc values, experimentally measured in the river, were higher than those predicted by Kow, implying that specific chemical interaction could occur in the sorption mechanisms for these group of compounds. 172 Articolo Pubblicato Pubblicazione Internazionale ISI WASP.pdf Articolo in rivista Kluwer Academic Publishers 0049 6979 Water, air and soil pollution Print Water, air and soil pollution Print Water, air and soil pollution. Print Water air soil pollut. Print Water, air soil pollution Print stefano.polesello POLESELLO STEFANO luisa.patrolecco PATROLECCO LUISA romano.pagnotta PAGNOTTA ROMANO saramaria.valsecchi VALSECCHI SARA MARIA silvio.capri CAPRI SILVIO TA.P04.021.005 Tendenze evolutive della qualita dei corpi idrici superficiali e sotterranei correlazione causa effetto e caratterizzazione. TA.P03.011.004 Macrocostituenti inorganici ed inquinanti organici emergenti nel ciclo idrologico in aree remote e densamente abitate |
