The ash left over after combustion is laced with dioxin and other pollutants .
垃圾燃烧后的灰烬含二恶英和其他污染物。
But these incinerators have become a growing source of toxic emissions , from dioxin to mercury , that can damage the body 's nervous system .
然而这些焚烧厂却成为包括二恶英和汞等有毒气体的源头,这些毒气会对人体神经系统造成伤害。
On tuesday the ministry ordered the slaughter of 140 pigs on a farm in the state after tests showed the animals contained more dioxin than the legal limit .
Authorities thought they had contained the problem , but on monday announced that pork with high levels of dioxin has been discovered at a farm in the german state of lower saxony .
Incinerators play the most important role in emissions of dioxin . Little research has been done on dioxin crossing the pacific . But analyses of similar chemicals have shown that they can travel very long distances .