另外一个需要单独加以考虑的问题是，一些金属或者化合物会渗入卤水。

A separate problem may be that some metals or chemicals leach into the brine.

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碳鱼用金属纸铂包好放在柴草中烧，满室芬香，柴草的精华渗入到粉红色的鱼肉中。

Wrapped in foil, the char is covered in burning grasses. Aromatic and flavour-filled, the essence of these grasses seeps deeply into the soft pink flesh of the fish.

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这些环保人士说，重金属可能会渗入地下水层或者海水里，给人类、珊瑚以及其他水生生物带来危害。

Heavy metals could leech into the water table or the sea, they say, where they could harm people, reefs and other Marine wildlife.

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