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- Title
Effect of tourist activity on wastewater quality in selected wastewater treatment plants in the Balearic Islands (Spain).
- Authors
Rodríguez-Alcántara, Joselin S.; Cruz-Pérez, Noelia; Rodríguez-Martín, Jesica; García-Gil, Alejandro; Santamarta, Juan C.
- Abstract
Unregulated sewage discharge into the sea poses a considerable danger to marine ecosystems, with coastal regions being particularly vulnerable to this because of the impact of tourism. This issue is amplified during the summer season, as the Balearic Islands are a heavily frequented destination. This study aims to determine the water quality in five different wastewater treatment plants (WWTPs) representative on the islands. For this purpose, we analysed several parameters, including biochemical oxygen demand (BOD), chemical oxygen demand (COD), treated water flow, suspended solids (SS), nitrates (N) and phosphorus (P), at the inlet and outlet of the WWTPs for 5 years. We set particular thresholds for each parameter and documented any breach by comparing the findings with the existing regulations. The least favourable results indicate non-compliance regarding N and P levels throughout the entire study period, as well as a lack of reduction percentage. Furthermore, flow analysis reflects the significant influence of tourism on water quality, with notable increases in both population and treated water volume during the peak tourist season. Overall, the investigation offers a robust foundation for comprehending water quality in relation to coastal landscape in the Balearic Islands. It pinpoints significant worry spots and underscores tourism's immediate impact on this ecological feature.
- Subjects
BALEARIC Islands (Spain); SPAIN; SEWAGE disposal plants; BIOCHEMICAL oxygen demand; ISLAND plants; TOURISM impact; CHEMICAL oxygen demand
- Publication
Environmental Science & Pollution Research, 2024, Vol 31, Issue 10, p15172
- ISSN
0944-1344
- Publication type
Article
- DOI
10.1007/s11356-024-32173-9