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The chemical status is evaluated in five classes, where NPAhigh and NPAgood are recognised as \u2018non-problem areas\u2019 and PAmoderate, PApoor and PAbad are recognised as \u2018problem areas\u2019.Most countries in Europe include marine sedimentsin long-term monitoring activities. Consequently, thedata coverage is good, especially in southern parts ofthe Baltic Sea, the North Sea, the Celtic Sea, the Bay ofBiscay, western parts of the Black Sea and the coastalwaters of France, Italy and Portugal.The number of assessment units monitored and classified in the North-East Atlantic Ocean is 511. In the Mediterranean Sea, the number of assessment units is 153. 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