Such methods don 't destroy the land or create tailings ponds , though they do burn a lot of natural gas to create the steam .
这种方法并不会破坏土地或者形成残渣池,尽管这确实需要燃烧大量的天然气来制造蒸汽。
Residents who as children splashed in tailings ponds and played in gritty smoke below smelter stacks now worry about contamination of their drinking water , soil and air .
Meanwhile , they became increasingly aware of the risks posed by the tailings ponds and waste-rock piles all around them .
同时,他们也愈发的清楚由遍布周围的尾矿池和废石堆带来的风险。
The mining operation includes a tan pit mine , processing equipment , and tailings ponds , where water and minerals are stored after the oil is removed .
采矿作业包括棕褐色的露天矿坑,加工设施和尾矿池,也就是分离石油后的水和矿物存储的地方。
Farmers living near the tailings dam , a 10-square-kilometer expanse of toxic waste , say they have lost teeth and their hair has turned white while tests show the soil and water contain high levels of cancer-causing radioactive materials .