A briquet made of coal and appropriate sulfur fixative ia for residents. It to some degree may bring the SO2 emitted from living quarters under control.

• 本来用燃煤加适量固硫剂制成蜂窝煤供民用,一定程度上控制了民用燃煤二氧化硫对天气环境的影响,方法简便易行,适合中小城市推广使用。