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Tositti L, Moroni B, Dinelli E, Morozzi P, Brattich E, Sebastiani B, Petroselli C, Crocchianti S, Selvaggi R, Enzo G, Cappelletti D. Deposition processes over complex topographies: Experimental data meets atmospheric modeling. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 744:140974. [PMID: 32755785 DOI: 10.1016/j.scitotenv.2020.140974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 07/03/2020] [Accepted: 07/12/2020] [Indexed: 06/11/2023]
Abstract
The present paper describes the assessment of the atmospheric deposition processes in a basin valley through a multidisciplinary approach based on the data collected within an extensive physico-chemical characterization of the soils, combined with the local meteorology. Surface soil cores were collected on a NNW-SSE transect across the Terni basin (Central Italy), between the Monti Martani and the Monti Sabini chains (956 m a.s.l.), featuring the heavily polluted urban and industrial enclave of Terni on its bottom. Airborne radiotracers, namely 210Pb and 137Cs, have been used to highlight atmospheric deposition. We observed an increased deposition flux of 210Pb and 137Cs at sites located at the highest altitudes, and the associated concentration profiles in soil allowed to evaluate the role of atmospheric deposition. We also obtained a comprehensive dataset of stable anthropogenic pollutants of atmospheric origin that showed heterogeneity along the transect. The behavior has been explained by the local characteristic of the soil, by seeder-feeder processes promoted by the atmospheric circulation, and was reconciled with the concentration profile of radiotracers by factor analysis. Finally, the substantial impact of the local industrial activities on soil profiles and the role of the planetary boundary layer has been discussed and supported by simulations employing a Lagrangian dispersion model.
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Affiliation(s)
- Laura Tositti
- Department of Chemistry "G. Ciamician", University of Bologna, Bologna (BO) 40126, Italy.
| | - Beatrice Moroni
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Perugia (PG) 06123, Italy
| | - Enrico Dinelli
- Department of Biological, Geological and Environmental Sciences (BiGeA), University of Bologna, Bologna (BO) 40126, Italy; Department of Biological, Geological and Environmental Sciences (BiGeA), U.O.S. Ravenna, Ravenna (RA) 48123, Italy
| | - Pietro Morozzi
- Department of Chemistry "G. Ciamician", University of Bologna, Bologna (BO) 40126, Italy
| | - Erika Brattich
- Department of Physics and Astronomy, University of Bologna, Bologna (BO), 40126 Bologna (BO), Italy
| | - Bartolomeo Sebastiani
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Perugia (PG) 06123, Italy
| | - Chiara Petroselli
- Faculty of Engineering and Physical Sciences, University of Southampton, 12 University Road, SO17 1BJ Southampton, UK
| | - Stefano Crocchianti
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Perugia (PG) 06123, Italy
| | - Roberta Selvaggi
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Perugia (PG) 06123, Italy
| | - Goretti Enzo
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Perugia (PG) 06123, Italy
| | - David Cappelletti
- Department of Chemistry, Biology and Biotechnologies, University of Perugia, Perugia (PG) 06123, Italy
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Degetto S, Cantaluppi C, Cianchi A, Valdarnini F, Schintu M. Critical analysis of radiochemical methodologies for the assessment of sediment pollution and dynamics in the lagoon of Venice (Italy). ENVIRONMENT INTERNATIONAL 2005; 31:1023-30. [PMID: 15979714 DOI: 10.1016/j.envint.2005.05.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Aquatic sediments are the ultimate sink of wastes dispersed in freshwater and soil. They are therefore a useful tool for investigating polluted ecosystems. Lagoon environments are very difficult to study due to their unstable morphology. Under these circumstances, even an excellent environmental investigation of a restricted lagoon area would still be inadequate to appreciate the characteristics of the entire system. The Venice lagoon is a very complex ecosystem whose morphology is complicated further by extensive anthropic intervention. A good environmental representation of the area was obtained with a preliminary radiochemical survey of airborne radionuclides, a unique tool in evaluating the homogeneity of the entire sedimentary system. It must be stressed, however, that the significance of the data depends substantially on the use of qualified procedures. Based on this, a detailed study was carried out on selected homogeneous areas, reconstructing the inventories and fluxes of pollutants in the sediments. In this work the radiochemical approach to the environmental study of the Venice lagoon is examined.
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Affiliation(s)
- S Degetto
- ICIS-CNR AdR C.so Stati Uniti 4, 35127, Padova, Italy.
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Bujdosó E. The Chernobyl reactor accident. J Radioanal Nucl Chem 1989. [DOI: 10.1007/bf02037717] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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