摘要:煤尘暴”不仅含有沙尘，还囊括了沿途刮起的大量粉煤灰。每燃烧4吨煤，就产生1吨粉煤灰。它们被露天放置，随大风形成扬尘。你知道怎么用英语表达吗?

More efforts are needed to prevent toxic coal-dust storms in China and to protect the public's health, warn environmental activists.

According to a report released by the environmental organization Greenpeace on Wednesday, sandstorms often pick up coal ash and other coal-combustion pollutants when they pass through regions where the coal industry is concentrated in China -- places like the Inner Mongolia autonomous region, Shanxi and Shaanxi provinces. The result is toxic coal-dust storms.

环保主义者警告中国应该采取更多措施阻止煤尘暴，以保护公众健康。

周三国际环保组织绿色和平发布一项报告指出，沙尘暴能够轻易携带扬尘和其他污染物扩大污染范围，中国北方主要产煤区集中分布的区域，如内蒙山西陕西等地，正位于沙尘暴来袭的主要路径上。会造成有毒的煤尘暴。

【讲解】

文中出现的“coal-dust storms”就是“煤尘暴”的意思，“coal-dust”是“煤尘”，“sandstorm”是“沙尘暴”“dust storm”是指“尘暴”，“windstorm”是“风暴”。煤尘暴中含有有毒的重金属包括：mercury(汞), lead(铅), cadmium(镉), fluoride(氟化物) 和 sulfur(硫)。