Aasen, Sejerø

Denmark Coastal 1 - Excellent

Aasen is a sandy beach approximately 200 metres long and 10 metres wide with scattered vegetation in patches. The seabed consists of sand closer to shore, with macroalgae present further out. The beach is classified as Excellent based on measurements of intestinal enterococci and E. coli from 2018–2021. A road runs 10 metres behind the beach, providing access to the shore in areas without vegetation.

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Water

Coastal sandy beach. Approximately 200 metres long and 10 metres wide. Seabed composed of sand near shore with macroalgae further out. Main current direction is westward and northwestward, away from the beach.

Location

Aasen beach is located in Kalundborg Municipality, Denmark. A road runs 10 metres behind the beach. The hinterland consists of open land, scattered summer houses, fields, and uncultivated areas. Parking information is not specified.

Facilities

Information signs are displayed at the beach and in its immediate vicinity to warn of temporary pollution or bathing restrictions. Lifeguards, toilets, showers, and disabled access are not specified.

Season

Monitoring occurs year-round with a minimum of four sampling occasions per year. The classification section is revised annually in November following the end of the bathing season.

Water Quality

The bathing water is classified as Excellent based on intestinal enterococci and E. coli measurements from 2018–2021. Kalundborg Municipality has no recorded information about drainage, watercourses, or other sources in the vicinity of the beach that could cause faecal contamination. The risk of faecal pollution is assessed as very low.

Risks

Potential risks include cyanobacteria (blue-green algae) blooms and accumulation of macroalgae. Large quantities of macroalgae can promote bacterial growth and extend the survival of faecal bacteria. Cyanobacteria can produce toxins causing headaches, skin irritation, fever, nausea, and diarrhoea on contact. Occasional occurrence of glass shards, litter, and chemical pollution is possible.