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长期来,水银血压计作为医院诊检病人的常用器械而大量使用。在它的使用、维修、核验中,如不慎有可能造成汞污染,对人体产生不良影响。 汞对人体造成损害,主要是以汞蒸气经呼吸道吸入或经皮肤吸收而进入人体。进入人体的汞,大部分被氧化成汞离子。由于汞具有可溶性,汞离子可通过血液进入人的中枢神经系统。 汞在空气中的最高允许浓度,居民区应在0.3μg/m~3以下,作业区应在10μg/m~3以下。空气中汞浓度超过100μg/m~3,接触3～4年即可发生汞中毒;人体长期吸入略高于最高容许浓
For a long time, mercury sphygmomanometer as a commonly used device for hospital diagnosis of patients and extensive use. In its use, maintenance, verification, such as inadvertently may cause mercury pollution, adversely affect the human body. Mercury causes damage to the human body mainly by inhalation of mercury vapor through the respiratory tract or absorption through the skin. Mercury entering the body is mostly oxidized to mercury ions. Due to the solubility of mercury, mercury ions can enter the human central nervous system through the bloodstream. Mercury maximum allowable concentration in the air, residential area should be 0.3μg / m ~ 3 or less, the operating area should be 10μg / m ~ 3 or less. Mercury concentration in the air over 100μg / m ~ 3, exposure to mercury poisoning occurs 3 to 4 years; human long-term inhalation slightly higher than the maximum allowable concentration