Spatial clustering of toxic trace elements in adolescents around the Torreon, Mexico lead-zinc smelter.

ABSTRACT: High blood lead (BPb) levels in children and elevated soil and dust arsenic, cadmium, and lead were previously found in Torreón, northern Mexico, host to the world's fourth largest lead-zinc metal smelter. The objectives of this study were to determine spatial distributions of adolescents with higher BPb and creatinine-corrected urine total arsenic, cadmium, molybdenum, thallium, and uranium around the smelter. Cross-sectional study of 512 male and female subjects 12-15 years of age was conducted. We measured BPb by graphite furnace atomic absorption spectrometry and urine trace elements by inductively coupled plasma-mass spectrometry, with dynamic reaction cell mode for arsenic. We constructed multiple regression models including sociodemographic variables and adjusted for subject residen

SUBMITTER: Garcia-Vargas GG 

PROVIDER: S-EPMC4737620 | biostudies-literature | 2014 Nov

REPOSITORIES: biostudies-literature