{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,20]],"date-time":"2026-03-20T02:28:09Z","timestamp":1773973689566,"version":"3.50.1"},"reference-count":51,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2022,6,24]],"date-time":"2022-06-24T00:00:00Z","timestamp":1656028800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Interreg SUDOE Programme","award":["SOE2\/P1\/E0506"],"award-info":[{"award-number":["SOE2\/P1\/E0506"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Hydrology"],"abstract":"<jats:p>Ponds are a common feature in urban parks to provide aesthetic and recreational functions, but also deliver a wide range of ecosystem services. The objective of this study was to assess the water quality of six urban ponds in the city of Lisbon, Portugal, to determine the factors that influence it and consider remediation measures for them. Besides that, our study aims to deliver data in order to support the best approach for a future monitoring program, toward more strategic and sustainable management. Floating treatment wetlands (FTW) were installed in three of the ponds during the study, where nutrient levels were higher. Water sampling was performed since 2016, with more intensive campaigns in 2020 and 2021. Average pH ranged from 7.9 to 9.0, average Chemical Oxygen Demand ranged from 36 mg\/L to 90 mg\/L and average Total Suspended Solids ranged from 7 to 93 mg\/L. The main factors that contribute to these values were identified as the presence of waterbirds, vegetative debris that falls in ponds, and contamination with sewage. The FTW that were installed in some of the ponds could help to improve the water quality, but additional measures such as removal of bottom sediments and leaves in the fall, may be necessary. It is expected that the assessment of water quality carried out in the urban ponds can contribute to the overall improvement of urban water management.<\/jats:p>","DOI":"10.3390\/hydrology9070114","type":"journal-article","created":{"date-parts":[[2022,6,26]],"date-time":"2022-06-26T09:00:13Z","timestamp":1656234013000},"page":"114","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Water Quality Assessment of Urban Ponds and Remediation Proposals"],"prefix":"10.3390","volume":"9","author":[{"given":"Andreia","family":"Rodrigues","sequence":"first","affiliation":[{"name":"Instituto Superior T\u00e9cnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3159-3497","authenticated-orcid":false,"given":"Cristina Sousa Coutinho","family":"Calheiros","sequence":"additional","affiliation":[{"name":"Interdisciplinary Centre of Marine and Environmental Research (CIIMAR\/CIMAR), University of Porto, Novo Edif\u00edcio do Terminal de Cruzeiros do Porto de Leix\u00f5es, Avenida General Norton de Matos, S\/N, 4450-208 Matosinhos, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1839-1735","authenticated-orcid":false,"given":"Pedro","family":"Teixeira","sequence":"additional","affiliation":[{"name":"Dire\u00e7\u00e3o Municipal do Ambiente, Estrutura Verde, Clima e Energia, C\u00e2mara Municipal de Lisboa, Pra\u00e7a do Munic\u00edpio, 1100-038 Lisboa, Portugal"},{"name":"CESAM\u2014Centro de Estudos do Ambiente e do Mar, Faculdade de Ci\u00eancias, Departamento de Biologia Animal, Universidade de Lisboa, Campo Grande, 1749-016 Lisboa, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1513-4522","authenticated-orcid":false,"given":"Ana","family":"Galv\u00e3o","sequence":"additional","affiliation":[{"name":"CERIS, Instituto Superior T\u00e9cnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2022,6,24]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"145","DOI":"10.1023\/A:1011355110475","article-title":"On the environmental role of urban lakes in Mexico City","volume":"4","year":"2000","journal-title":"Urban Ecosyst."},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Bengtsson, L., Herschy, R.W., and Fairbridge, R.W. (2012). Urban Lakes And Ponds. Encyclopedia of Lakes and Reservoirs, Springer.","DOI":"10.1007\/978-1-4020-4410-6"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"293","DOI":"10.1016\/S0921-8009(99)00013-0","article-title":"Ecosystem services in urban areas","volume":"29","author":"Bolund","year":"1999","journal-title":"Ecol. 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