Marc Guillaume
Marc Guillaume is the prefect of the Île-de-France region, responsible for overseeing safety and regulations in Paris. He recently announced that from July 5 to the end of August, swimming will be permitted in the Seine River, a significant change after a century-long prohibition due to pollution concerns. This decision aligns with efforts to adapt to climate change and enhance quality of life in the city.
Not in the pool (under ¢1).
Recent news mentions
Marc Guillaume, the prefect, confirmed that water quality data is public.
Zi istorică în Franţa. Parizienii pot înota din nou în Sena, după aproape un secol şi investiţii de peste 1,4 miliarde de euro. „Visam de ani de zile să fac asta”
Romania· 2025-07-05
Marc Guillaume, the regional prefect, confirmed the exceptional quality of the water in the Seine.
"30 ans que j'attends ça!": à Paris, premières baignades dans la Seine sous étroite surveillance
Monaco· 2025-07-05
Marc Guillaume, the regional mayor, assured that the water quality is exceptional.
Paris reabre partes do rio Sena à natação pela primeira vez em mais de um século | Ambiente
Portugal· 2025-07-05Marc Guillaume, the prefect of the Île-de-France region, stated that the water quality is exceptional.
„Calitatea apei este excepțională” – Ziarul de Gardă
Moldova· 2025-07-05Marc Guillaume explained the investments made to improve the water quality of the Seine.
Après un siècle d'interdiction, la baignade pour tous s'ouvre dans la Seine (à certaines conditions)Monaco· 2025-07-03
Marc Guillaume detailed the accessibility of the Olympic flame event in Paris.
La flamme olympique de retour à Paris pour trois étés
France· 2025-05-15
Marc Guillaume is the prefect of the Île-de-France region who discussed the funding for the new version of the flame.
Libre accès prévu pour la vasque olympique à partir du 21 juin au jardin des TuileriesMonaco· 2025-05-15
Marc Guillaume is the prefect of the Île-de-France region who expressed optimism about the water quality.
Après les athlètes, le public pourra piquer une tête dans la Seine cet étéMonaco· 2025-05-15
Marc Guillaume, the prefect of the region, indicated that bacteriological controls will be carried out daily.
París autorizará bañarse en el río Sena a partir del 5 de julio | Internacional | Noticias
Ecuador· 2025-05-14