الأثر البيئي لاستخدام الفحم المعرفة
Coal and coal waste products (including fly ash, bottom ash and boiler slag) releases approximately 20 toxicrelease chemicals, including arsenic, lead, mercury, nickel, vanadium, beryllium, cadmium, barium, chromium, copper, molybdenum, zinc, selenium and radium, which are dangerous if released into the these substances are trace impurities, enough coal is burned that ...