随着生产和使用模式的转变，煤灰回收率达到创纪录的56%。Coal Ash Recycling Reaches Record 56 Percent Amid Shifting Production an

2017年11月21日，华盛顿特区——2016年56%的煤灰产出被回收了——创造了一个新的记录，并标志着连续第二年多美国生产的煤灰有一半被有益地利用了，而不是被浪费了处理。

November 21, 2017, Washington, D.C. – Fifty-six percent of the coal ash produced during 2016  was recycled – establishing a new record and marking the second consecutive year that more  than half of the coal ash produced in the United States was beneficially used rather than  disposed.