汞及其化合物在各个领域应用较为广泛,它对环境的污染已日益被人们重视。某医院口腔科治疗室使用5∶8银汞剂补牙用量甚大,每月用汞量约1kg。平时操作不慎使汞滴溅到地面,在常温下蒸发。汞蒸气易被墙或衣服吸附形成持续污染环境空气,成为第2次汞源,治疗室存放的两只银汞搅拌器柜密封设备不好,这些 Mercury and its compounds are widely used in various fields, and its environmental pollution has been paid more and more attention. Stomatological treatment room in a hospital using 5: 8 amalgam filling a large amount of mercury per month about 1kg. Inadvertent operation usually make the mercury drop splash to the ground, at room temperature evaporation. Mercury vapor is easily adsorbed by wall or clothes to form continuous pollution of ambient air, becoming the second source of mercury, two silver mercury blender cabinet storage room treatment equipment, these are not good