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Faecal bacteria

A common cause of ‘poor’ water bathing water quality is the presence of faecal bacteria, which can pose significant public health risks. Major sources of bacteria include sewage, inefficient waste water treatment plants, animal waste (e.g. birds and dogs at beaches) and water draining from farms and farmland. Significant investments in sewage systems and treatment plants have helped reduce faecal bacteria levels in European bathing waters in recent decades.