Conclusion: Shantou sea-mussel is safe for human health in general.Change caused by red tide in Shantou sea area and contaminative level of heavy metal should be noticed.

• 结论：汕头的贻贝符合食用安全标准，但应注意跟踪汕头海域赤潮的发生与变化，以及重金属污染的程度。