Ançã

Portugal River 1 - Excellent

The bathing water of Ançã is characterized by a river pool fed by the flow of Ribeira and Fonte de Ançã. It is located in Cantanhede municipality in the Vouga river basin. The bathing area is surrounded by urban activities and experiences a high number of users.

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Water

Ribeira de Ançã, a river pool fed by the flow of Ribeira and Fonte de Ançã. Part of the Vouga river basin.

Location

Cantanhede municipality. Monitoring point coordinates: Latitude 40.27251, Longitude -8.52482.

Season

June 14 to September 14, 2025. Sampling frequency: once every two weeks.

Water Quality

Water quality classification in 2024 complies with Decreto-Lei 135/09. No short-term pollution episodes occurred during the bathing season 2024. Zero days of bathing prohibition or advice against bathing due to short-term pollution events. Potential microbiological pollution sources include diffuse fecal contamination from urban activities, solid waste from beach activities, and high number of users.

Risks

Potential microbiological pollution sources from urban activities and beach use. High potential for cyanobacteria and phytoplankton proliferation. Low potential for macroalgae proliferation.