As well as affecting Britain and most of Scandinavia, on Thursday night, the ash cloud had reached northern France, the Netherlands, northern Germany and parts of Poland, he added.

除了影响英国和斯堪的纳维亚的大部分地区之外，周四晚上，火山灰云已经到达法国北部，荷兰，德国北部和波兰部分地区，约翰继续说道。

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The disease was first observed as a new form of ash dieback in Poland in 1992, and has since spread to ash trees in many European countries.

BBC: Ash fungus genetic data released