| Title | Combined Use of Caffeine and Turbidity to Evaluate the Impact of CSOs on River Water Quality |
| Abstract | Several studies have demonstrated that the most effective way to control eutrophication is to reduce phosphorus input at the scale. Water quality monitoring programs need to separately evaluate the different polluting sources to provide a suitable estimate of their relative contributions and thus accurately prioritize possible restoration actions. Urban area cases, where a portion of untreated wastewater is often discharged directly into receiving surface waters by combined sewer overflows (CSOs) during rain events, remain unsolved. In this context, an urban watershed located in Northern Italy with 60 CSOs has been chosen as a case study, and four rainy events have been hourly monitored. The proposed monitoring program consists of the combined use of caffeine and turbidity to estimate the volume and phosphorus load spilled into the river from the CSOs, respectively. Caffeine proved to be a suitablemolecule to quantify the volume of wastewater discharged into water bodies, based on a per capita caffeine load of 10.8 mg inhab(-1) d(-1), estimated in the present work. This research showed that, on average, more than half of the total phosphorus loads transported by the river is due to the CSO discharges (56.5%). The knowledge of the prevailing responsibility of the CSO discharges for the Lambro River quality allows prioritizing effective restoration actions. |
| Source | Water, air and soil pollution (Print) 228 (9), pp. 1–11 |
| Keywords | CaffeineCombined sewer overflowPhosphorus loadUrban watershedAnthropogenic marker |
| Journal | Water, air and soil pollution (Print) |
| Editor | Kluwer Academic Publishers, Dordrecht, Paesi Bassi |
| Year | 2017 |
| Type | Articolo in rivista |
| DOI | 10.1007/s11270-017-3505-3 |
| Authors | Viviano, G.; Valsecchi, S.; Polesello, S.; Capodaglio, A.; Tartari, G.; Salerno, F. |
| Text | 379187 2017 10.1007/s11270 017 3505 3 ISI Web of Science WOS 000410827400013 Scopus 2 s2.0 85027571092 Caffeine Combined sewer overflow Phosphorus load Urban watershed Anthropogenic marker Combined Use of Caffeine and Turbidity to Evaluate the Impact of CSOs on River Water Quality Viviano, G.; Valsecchi, S.; Polesello, S.; Capodaglio, A.; Tartari, G.; Salerno, F. CNR; Univ Pavia Several studies have demonstrated that the most effective way to control eutrophication is to reduce phosphorus input at the scale. Water quality monitoring programs need to separately evaluate the different polluting sources to provide a suitable estimate of their relative contributions and thus accurately prioritize possible restoration actions. Urban area cases, where a portion of untreated wastewater is often discharged directly into receiving surface waters by combined sewer overflows CSOs during rain events, remain unsolved. In this context, an urban watershed located in Northern Italy with 60 CSOs has been chosen as a case study, and four rainy events have been hourly monitored. The proposed monitoring program consists of the combined use of caffeine and turbidity to estimate the volume and phosphorus load spilled into the river from the CSOs, respectively. Caffeine proved to be a suitablemolecule to quantify the volume of wastewater discharged into water bodies, based on a per capita caffeine load of 10.8 mg inhab 1 d 1 , estimated in the present work. This research showed that, on average, more than half of the total phosphorus loads transported by the river is due to the CSO discharges 56.5% . The knowledge of the prevailing responsibility of the CSO discharges for the Lambro River quality allows prioritizing effective restoration actions. 228 Published version https //link.springer.com/article/10.1007%2Fs11270 017 3505 3 03/08/2017 Cod. articolo 330 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 gaetano.viviano VIVIANO GAETANO stefano.polesello POLESELLO STEFANO franco.salerno SALERNO FRANCO gianni.tartari TARTARI GIANNI saramaria.valsecchi VALSECCHI SARA MARIA |
