Scheda di dettaglio – i prodotti della ricerca
| Dato | Valore |
|---|---|
| Title | Field study on mobility and persistence of linuron and monolinuron in agricultural soil |
| Abstract | A field site equipped with suction cup lysimeters was installed at Treviglio (BG) to assess the migration capacity of the herbicides linuron and monolinuron from topsoil to groundwater and to verify the appearance of their relevant transformation products in soil and water samples. A constant hydraulic head was applied in order to develop water saturation conditions in the upper layers. KCl was used as a tracer to evaluate water infiltration velocity through the vertical soil profile. The constant hydraulic head accelerated infiltration rates, while herbicide concentrations reached maximum contamination because soil adsorption capacity was underdeveloped. The results indicated two main processes of pesticide transport: firstly transport due mainly to water infiltration through macropores; secondly the transport driven by matrix flow. Linuron was found to be the most mobile herbicide, while chloroanilines were found to be the major transformation products of the herbicides considered. |
| Source | International journal of environmental analytical chemistry 78 (1), pp. 87–106 |
| Keywords | LinuronMatrix flowMonolinuronPreferential flowSuction cup lysimeterVadose zone |
| Journal | International journal of environmental analytical chemistry |
| Editor | Gordon and Breach., New York,, Stati Uniti d'America |
| Year | 2000 |
| Type | Articolo in rivista |
| Authors | Guzzella, L.; Pozzoni, F.; Giuliano, G. |
| Text | 339373 2000 Scopus 2 s2.0 0033755483 Linuron Matrix flow Monolinuron Preferential flow Suction cup lysimeter Vadose zone Field study on mobility and persistence of linuron and monolinuron in agricultural soil Guzzella, L.; Pozzoni, F.; Giuliano, G. Istituto di Ricerca sulle Acque, Italy A field site equipped with suction cup lysimeters was installed at Treviglio BG to assess the migration capacity of the herbicides linuron and monolinuron from topsoil to groundwater and to verify the appearance of their relevant transformation products in soil and water samples. A constant hydraulic head was applied in order to develop water saturation conditions in the upper layers. KCl was used as a tracer to evaluate water infiltration velocity through the vertical soil profile. The constant hydraulic head accelerated infiltration rates, while herbicide concentrations reached maximum contamination because soil adsorption capacity was underdeveloped. The results indicated two main processes of pesticide transport firstly transport due mainly to water infiltration through macropores; secondly the transport driven by matrix flow. Linuron was found to be the most mobile herbicide, while chloroanilines were found to be the major transformation products of the herbicides considered. A field site equipped with suction cup lysimeters was installed at Treviglio BG to assess the migration capacity of the herbicides linuron and monolinuron from topsoil to groundwater and to verify the appearance of their relevant transformation products in soil and water samples. A constant hydraulic head was applied in order to develop water saturation conditions in the upper layers. KCl was used as a tracer to evaluate water infiltration velocity through the vertical soil profile. The constant hydraulic head accelerated infiltration rates, while herbicide concentrations reached maximum contamination because soil adsorption capacity was underdeveloped. The results indicated two main processes of pesticide transport firstly transport due mainly to water infiltration through macropores; secondly the transport driven by matrix flow. Linuron was found to be the most mobile herbicide, while chloroanilines were found to be the major transformation products of the herbicides considered. 78 Published version http //www.scopus.com/record/display.url eid=2 s2.0 0033755483 origin=inward Articolo in rivista Gordon and Breach. 0306 7319 International journal of environmental analytical chemistry. International journal of environmental analytical chemistry International journal of environmental analytical chemistry Int. j. environ. anal. chem. liciamaria.guzzella GUZZELLA LICIA MARIA |