乙炔和氧氣的混合物, 如果它點燃並導致標準氣瓶爆炸, 導致半徑10米內一定程度嘅死亡. 除了被氣缸彈片擊中的風險, the immediate negative pressure and the blast wave from the explosion are powerful enough to be deadly.
I personally consider a distance of up to 20 meters from the explosion to be fatal. This scenario is exceedingly perilous.