Aronsson A M, Lind B, Nylander M, Nordberg M
Department of Environmental Hygiene, Karolinska Institute, Stockholm, Sweden.
Biol Met. 1989;2(1):25-30. doi: 10.1007/BF01116197.
Mercury concentration in intraoral air and urine of seven females with dental amalgam was measured before and after intake of one hard-boiled egg. A considerable decrease in mercury concentration in intraoral air was found. Twenty women with about equal dental amalgam status, with or without subjective symptoms related to dental amalgam, were also studied. Mercury concentrations in intraoral air and urine were measured. For all the 27 women the basal intraoral air concentration of mercury ranged over 0.6-10.4 micrograms/m3 (median value 4.3 micrograms/m3). This corresponds to a release of 0.02-0.38 ng/s (median value 0.16 ng/s). In urine, the mercury concentration varied from less than 0.8-6.9 micrograms/g creatinine (median value 1.9 microgram/g creatinine). Data from both parameters were significantly correlated to the total number of teeth areas with dental amalgam. Protein values in urine indicated no renal damage. Maximum concentrations of mercury vapour in intraoral air for the 27 women who had chewed chewing gum for 5 min varied between 2-60 micrograms Hg/m3 (median value 19 micrograms Hg/m3). This corresponds to 0.07-2.20 ng Hg/s and a median value of 0.70 ng Hg/s.
对7名有牙科汞合金填充物的女性，在摄入一个煮鸡蛋前后，测量了口腔内空气和尿液中的汞浓度。发现口腔内空气中的汞浓度有显著下降。还对20名牙科汞合金状况大致相同、有或无与牙科汞合金相关主观症状的女性进行了研究。测量了她们口腔内空气和尿液中的汞浓度。对于所有这27名女性，口腔内空气汞的基础浓度范围为0.6 - 10.4微克/立方米（中位数为4.3微克/立方米）。这相当于释放速率为0.02 - 0.38纳克/秒（中位数为0.16纳克/秒）。尿液中汞浓度在低于0.8 - 6.9微克/克肌酐之间变化（中位数为1.9微克/克肌酐）。这两个参数的数据都与有牙科汞合金的牙齿区域总数显著相关。尿液中的蛋白质值表明没有肾脏损伤。27名咀嚼口香糖5分钟的女性口腔内空气中汞蒸气的最大浓度在2 - 60微克汞/立方米之间变化（中位数为19微克汞/立方米）。这相当于0.07 - 2.20纳克汞/秒，中位数为0.70纳克汞/秒。
