title: [Thallium content in adults older than 45 ages at Hezhang County of Guizhou Province].
abstract: OBJECTIVE
  To investigate the feature of Thallium content in adults of heavy metal contaminated district due to mining of Hezhang County, Guizhou Province. METHODS The subjects older than 45 ages were randomly recruited from the mineralized district (Magu village) and no-mineralized district (Salaxi viillage) , urine of villagers were collected and thallium content in urine were detected with ICP-MS.
  
  
  RESULTS
  The average thallium contents in urine of Magu villagers were higner than those of Salaxi villagers,The urinary thallium contents of female were higner than those of male. The urinary thallium contents of residents in two districts were mostly under the upper limit of exposure in human bodies.
  
  
  CONCLUSIONS
  There was no villager suffered from chronic poisoning of thallium in the two observing districts, the 95% upper limits of urinary thallium content for nonoccupational women older than 45 ages in Magu village was 8 microg/gCr and those for other nonoccupational subjects older than 45 ages was 5 microg/gCr.
authors.affiliation: Institute of Environmental Hygiene and Health Related Product Safety, Chinese Center 100050, China for Disease Control and Prevention, Beijing, China. wwqzhang@hotmail.com
authors.forename: Wenli
authors.initials: W
authors.lastname: Zhang
authors.forename: Dancheng
authors.initials: D
authors.lastname: Yao
authors.forename: Jiali
authors.initials: J
authors.lastname: Feng
authors.forename: Dong
authors.initials: D
authors.lastname: Zeng
authors.forename: Di
authors.initials: D
authors.lastname: Fan
authors.forename: Qi
authors.initials: Q
authors.lastname: Shang
mesh_terms: D000368:Aged; D002681:China; D004781:Environmental Exposure; D004785:Environmental Pollutants / Q000652:urine*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D008906:Mining; D012494:Sampling Studies; D013793:Thallium / Q000652:urine*
chemical_list: D004785:Environmental Pollutants; D013793:Thallium