现在有的家庭使用的仍是水银体温计,而水银体温计里面的水银(学名汞)是有毒物质,在常温下即能蒸发,气温越高,蒸发越快,危害人体健康。如果水银体温计不慎摔破,那应该怎么办呢?一是用湿润的棉棒或胶带纸将洒落的水银粘集起来,放进可以封口的小瓶中,并在瓶中加入少量水,可防止水银蒸发。收集过程动作要快,将窗户打开,保持良好通风,手尽量不要与水银接触。要提醒的是,收集好的水银不要倒入下水道,以免污染地下水,建议收集好的水银交由社区废液管理人员处理。二是对掉在地上不能完全收集起来的水银,可撒硫磺粉降低水银毒性。可利用风扇、换气扇等排风装置,加快将空气中的水银蒸汽排除。对于被汞污染的房间,可以碘加酒精点燃熏蒸,还可以利用10%漂白粉液体冲洗被汞污染的地面。如果要是不小心吃了一些水银呢?水银进入消化道后,通常很难经消化道吸收,直接通过粪便排出人体。但汞为重金属,比重较大,会对局部胃粘膜造成压迫。如既往患有胃溃疡等病症,可能会引起溃疡加重,甚至胃穿孔,同时因局部黏膜炎症作用,可能导致汞吸收增加。这时候可以多喝牛奶,保护胃黏膜,减少汞与体内蛋白质的结合。当然,最安全的方式,还是要尽快就医。
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