It has been estimated that about 90 per cent of the total SO2 and NOx emissions from ships in the North Sea, including the English Channel, originates from a zone of approximately 50 nautical miles (approximately 90 kilometres) from the coastline.
Selon les estimations, quelque 90 % du total des émissions de soufre et d'oxyde d'azote provenant des navires en mer du Nord, y compris la Manche, proviennent d'une zone de 50 miles marins environ (approximativement 90 km) à partir des côtes.