hazardous elements

基本解释

In all of the metal element, cadmium is the greatest threat to human health of hazardous elements.
在所有的金属元素中，镉是对人体健康威胁最大的有害元素之一。
Nickel is the one of hazardous elements in coal. Nickel does enormous harm to air water soil and organism in coal combustion.
镍是煤中毒害性元素之一，燃煤过程中镍对大气、水、土壤、生物的危害性是不可低估的。
Arsenic is one of the hazardous elements in coal. During coal processing and combustion, arsenic is released into the environment.
砷是煤中有害微量元素之一，在煤加工利用过程中，砷会以各种形式释放出来，进入环境。