We determined if colour, category (e.g., food packaging) or intertidal activity could explain the occurrence of litter with acute levels of metals. Six beaches were sampled; an industrial site, a local and remote park and three beaches. Food packaging accounted for 66% of litter with acute levels of metals found in 10% of samples. Acute levels were independent of colour and category, but dependent on intertidal region and its anthropogenic use. Litter with acute levels of cadmium and lead were recovered from the industrial intertidal and high concentrations of zinc and cadmium associated with candy wrappers were found on recreational beaches. In addition to the intrinsic and extrinsic loads that litter carries, also too are memory effects, i.e., the previous use of the item carries over its trace metal burden posing extreme risks to marine ecosystems. In the managing of risk associated with beach litter, legacy contaminants need be considered.

我们确定颜色，类别（例如，食品包装）或潮间带活动是否可以解释垃圾中金属含量高的情况。采样了六个海滩。一个工业用地，一个本地和偏远的公园以及三个海滩。食品包装占垃圾的66％，其中10％的样品中金属含量很高。急性水平与肤色和类别无关，但取决于潮间带及其人为用途。从潮间带工业中回收了急性镉和铅水平的垃圾，在休闲海滩上发现了与糖果包装相关的高浓度锌和镉。除垫料承载的内在和外在负载外，记忆效应也同样如此，即 该项目的先前使用会残留其痕量金属，对海洋生态系统构成极大的风险。在管理与沙滩垃圾相关的风险时，需要考虑遗留污染物。