Shirkhanloo Hamid, Fallah Mehrjerdi Mohammad Ali, Hassani Hamid
a Iranian Petroleum Industry Occupational and Environmental Health Research Center (IPIOEHRC), Iranian Petroleum Industry Health Research Institute (IPIHRI) , Tehran , Iran.
b Petroleum Industry Health Organization (PIHO) , Tehran , Iran.
Arch Environ Occup Health. 2017 Mar 4;72(2):63-69. doi: 10.1080/19338244.2014.964391. Epub 2016 Dec 12.
The objective of this study was to investigate the occupational and nonoccupational exposure to mercury (Hg) vapor in dental personnel by examining the relationships between blood mercury, urine mercury, and their ratio with air mercury. The method was performed on 50 occupational exposed and 50 unexposed controls (25 men and 25 women). The mercury concentrations in air and human biological samples were determined based on the National Institute for Occupational Safety and Health (NIOSH) method and standard method (SM) by a new mode of liquid-phase microextraction, respectively. The mean mercury concentrations in urine (μg Hg/g creatinine) and blood were significantly higher than control group, respectively (19.41 ± 5.18 vs 2.15 ± 0.07 μg/g and 16.40 ± 4.97 vs 2.50 ± 0.02 μg/L) (p <.001). The relationships between mercury concentration in blood/urine ratio (r = .380) with dental office air are new indicators for assessing occupational exposure in dental personnel.
本研究的目的是通过检查血汞、尿汞及其与空气中汞的比率之间的关系，调查牙科工作人员职业和非职业性汞（Hg）蒸气暴露情况。该研究对50名职业暴露者和50名未暴露对照者（25名男性和25名女性）进行。空气中汞浓度和人体生物样本中的汞浓度分别根据美国国家职业安全与健康研究所（NIOSH）方法和标准方法（SM），采用新型液相微萃取模式测定。尿汞（μg Hg/g肌酐）和血汞的平均浓度分别显著高于对照组（19.41±5.18对2.15±0.07μg/g和16.40±4.97对2.50±0.02μg/L）（p<.001）。血汞/尿汞比率与牙科诊室空气中汞浓度之间的关系（r=.380）是评估牙科工作人员职业暴露的新指标。
