Seine-Maritime especially in relation to the rural population. The first story of the long-running series "Valérian and Laureline" is set in Seine-Maritime, with the character Laureline originating from the area. Cauchois is the dialect of the Pays de Caux, and is one of the most vibrant forms of the Norman language beyond Cotentinais Seine-Maritime Seine-Maritime () is a department of France in the Normandy region of northern France. It is situated on the northern coast of France, at the mouth of the Seine, and includes the cities of Rouen and Le Havre. Until 1955 it was named Seine-Inférieure. The department can
Seine concentrations in the Seine are relatively high. The pH level of the Seine at Pont Neuf has been measured to be 8.46. Despite this, the water quality has improved significantly over what several historians at various times in the past called an "open sewer". In 2009, it was announced that Atlantic salmon had returned to the Seine. The name comes from the Latin , the Gallo-Roman goddess of the river. On 28 or 29 March, 845, an army of Vikings led by a chieftain named Reginherus, which is possibly another name for Ragnar Lothbrok, sailed up the River Seine with