When coal,gangue,coal cinder,coal ashes,sandstone,lime soil or other materials is stored in densely inhabited areas,fire and dust prevention measures must be taken in order to prevent atmospheric pollution.

• 在人口集中地区存放煤炭、煤矸石、煤渣、煤灰、砂石、灰土等物料，必须采取防燃、防尘措施，防止污染大气。