Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Evaluating the impact of a fluoropolymer plant on a river macrobenthic community by a combined chemical, ecological and genetic approach |
| Abstract | Effect-based monitoring is a recommended approach suggested in European Guidelines to assess the response of ecosystem affected by a pollution source, considering the effects at community, population, individual but also at suborganism level. A combined chemical, ecological and genetic approach was applied in order to assess the impact of a fluoropolymer plant on the macrobenthic community of the Northern Italian river Bormida (Piedmont region). The macrobenthic community living downstream of the industrial discharge was chronically exposed to a mixture of perfluoroalkyl substances (PFAS), with perfluorooctanoic acid as the main compound, at concentrations up to several ?gL-1. Ecological assessment proved that the downstream community was not substantially different from that living upstream of the pollution source. The impact on community is not quantifiable with the traditional monitoring methods used for ecological classification under European regulation because macrobenthic communities showed only slight differences in their structure. In order to highlight effects on genetic variability of the native population, a subcellular analysis by using the AFLP (Amplified Fragment Length Polymorphism) genetic technique was applied to genotype of individuals of a selected species (Hydropsyche modesta, Trichoptera) collected in the two sampling sites. Percentage of variation between the two populations was 6.8%, a threshold compatible with a genetic drift induced in the downstream population. The genetic study carried out in field identified a significant divergence between exposed and non-exposed populations, but at present it is not possible to associate this divergence to a specific effect induced by PFAS. |
| Source | Science of the total environment 538, pp. 654–663 |
| Keywords | Benthic invertebratesEffect-based monitoringGenetic selectionPFOA |
| Journal | Science of the total environment |
| Editor | Elsevier, Lausanne ;, Paesi Bassi |
| Year | 2015 |
| Type | Articolo in rivista |
| DOI | 10.1016/j.scitotenv.2015.08.086 |
| Authors | Rusconi M.; Marziali L.; Stefani F.; Valsecchi S.; Bettinetti R.; Mazzoni M.; Rosignoli F.; Polesello S. |
| Text | 335305 2015 10.1016/j.scitotenv.2015.08.086 Scopus 2 s2.0 84940426317 ISI Web of Science WOS WOS 000363348900063 Benthic invertebrates Effect based monitoring Genetic selection PFOA Evaluating the impact of a fluoropolymer plant on a river macrobenthic community by a combined chemical, ecological and genetic approach Rusconi M.; Marziali L.; Stefani F.; Valsecchi S.; Bettinetti R.; Mazzoni M.; Rosignoli F.; Polesello S. IRSA CNR, Water Research Institute, via Mulino 19, Brugherio MB, 20861, Italy; Universita degli Studi dell Insubria, DISTA, Via Dunant 3, Varese, Italy Effect based monitoring is a recommended approach suggested in European Guidelines to assess the response of ecosystem affected by a pollution source, considering the effects at community, population, individual but also at suborganism level. A combined chemical, ecological and genetic approach was applied in order to assess the impact of a fluoropolymer plant on the macrobenthic community of the Northern Italian river Bormida Piedmont region . The macrobenthic community living downstream of the industrial discharge was chronically exposed to a mixture of perfluoroalkyl substances PFAS , with perfluorooctanoic acid as the main compound, at concentrations up to several gL 1. Ecological assessment proved that the downstream community was not substantially different from that living upstream of the pollution source. The impact on community is not quantifiable with the traditional monitoring methods used for ecological classification under European regulation because macrobenthic communities showed only slight differences in their structure. In order to highlight effects on genetic variability of the native population, a subcellular analysis by using the AFLP Amplified Fragment Length Polymorphism genetic technique was applied to genotype of individuals of a selected species Hydropsyche modesta, Trichoptera collected in the two sampling sites. Percentage of variation between the two populations was 6.8%, a threshold compatible with a genetic drift induced in the downstream population. The genetic study carried out in field identified a significant divergence between exposed and non exposed populations, but at present it is not possible to associate this divergence to a specific effect induced by PFAS. 538 Published version http //www.scopus.com/inward/record.url eid=2 s2.0 84940426317 partnerID=q2rCbXpz paper 2015_Rusconi_STOTEN_Bormida.pdf Articolo in rivista Elsevier 0048 9697 Science of the total environment Science of the total environment Sci. total environ. mariannarusconi RUSCONI MARIANNA MAZZONI MICHELA ROSIGNOLI FEDERICA PAOLA stefano.polesello POLESELLO STEFANO laura.marziali MARZIALI LAURA fabrizio.stefani STEFANI FABRIZIO saramaria.valsecchi VALSECCHI SARA MARIA |