| Title | Seasonal fluctuations of DDTs and PCBs in zooplankton and fish of Lake Maggiore (Northern Italy) |
| Abstract | Concentrations of DDTs and PCBs were determined in the zooplankton and in three different fish species (shad, whitefish and roach) collected seasonally during 2009 and 2010 in three sites in Lake Maggiore, a south-alpine lake that has been contaminated by DDT since 1996. As previously observed in 2008, even during 2009 DDTs concentrations were higher in zooplankton than in fish, probably due to the very unstable situation of the lake still influenced by local inputs. The situation changed in 2010, when all DDT compounds increased in fish to levels much higher than those measured in zooplankton. Biomagnification was statistically demonstrated for pp'DDE in all the three fish species, indicating a probable signal of recovery of the lake. Although with respect to total PCBs we observed that the contamination levels varied across time periods and across fish species, biomagnification was evident from zooplankton to fish both in 2009 and in 2010. As concern individual PCBs, biomagnification from zooplankton to all three fish species was significant for PCB 153 and PCB 138. © 2012 Elsevier Ltd. |
| Source | Chemosphere 88 (3), pp. 344–351 |
| Keywords | BiomagnificationDDTsFood webPCBsPelagi and littoral fishZooplankton |
| Journal | Chemosphere |
| Editor | Elsevier, Oxford, Regno Unito |
| Year | 2012 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.chemosphere.2012.03.009 |
| Authors | Bettinetti, Roberta; Quadroni, Silvia; Quadroni, Silvia; Manca, Marina; Piscia, Roberta; Volta, Pietro; Guzzella, Licia; Roscioli, Claudio; Galassi, Silvana |
| Text | 339324 2012 10.1016/j.chemosphere.2012.03.009 Scopus 2 s2.0 84860511474 Biomagnification DDTs Food web PCBs Pelagi and littoral fish Zooplankton Seasonal fluctuations of DDTs and PCBs in zooplankton and fish of Lake Maggiore Northern Italy Bettinetti, Roberta; Quadroni, Silvia; Quadroni, Silvia; Manca, Marina; Piscia, Roberta; Volta, Pietro; Guzzella, Licia; Roscioli, Claudio; Galassi, Silvana Universita degli Studi dell Insubria; Universita degli Studi di Milano; CNR ISE; CNR IRSA Concentrations of DDTs and PCBs were determined in the zooplankton and in three different fish species shad, whitefish and roach collected seasonally during 2009 and 2010 in three sites in Lake Maggiore, a south alpine lake that has been contaminated by DDT since 1996. As previously observed in 2008, even during 2009 DDTs concentrations were higher in zooplankton than in fish, probably due to the very unstable situation of the lake still influenced by local inputs. The situation changed in 2010, when all DDT compounds increased in fish to levels much higher than those measured in zooplankton. Biomagnification was statistically demonstrated for pp DDE in all the three fish species, indicating a probable signal of recovery of the lake. Although with respect to total PCBs we observed that the contamination levels varied across time periods and across fish species, biomagnification was evident from zooplankton to fish both in 2009 and in 2010. As concern individual PCBs, biomagnification from zooplankton to all three fish species was significant for PCB 153 and PCB 138. © 2012 Elsevier Ltd. 88 Published version http //www.scopus.com/record/display.url eid=2 s2.0 84860511474 origin=inward 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, liciamaria.guzzella GUZZELLA LICIA MARIA |
