Heavy metals and assessment of their potential ecological risk in intertidal sediments of islands in Changdao County.
Based on the survey data of islands in Changdao County in 2007,characteristics,relations with organic matter and potential ecological risks of heavy metals in intertidal sediments of the island were analyzed.Results showed that the content of heavy metals were lower than the background value in all islands.Relationships of heavy metal with organic matter were various between different islands.Heavy metals in intertidal sediments have slight ecological risk,which indicated that breed aquatics and tourism could be developed in the area.