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Biomonitoring of mercury in hair of breastfeeding mothers living in the Valencian Region (Spain). Levels and predictors of exposure
- Yusà, Vicent, Pérez, Rosa, Suelves, Trinidad, Corpas-Burgos, Francisca, Gormáz, María, Dualde, Pablo, Coscolla, Clara, Quiles, Joan, Roca, Marta, Vento, Máximo
- Chemosphere 2017 v.187 pp. 106-113
- breast feeding, environmental monitoring, fish consumption, geometry, guidelines, lean fish, mercury, mothers, regression analysis, Spain, United States
- This study focused on the evaluation of the levels of total mercury in hair among 120 breastfeeding mothers aged 20 to 45 -. The concentrations of Hg ranged from 0.07 to 6.87 μg/g with a geometric mean (GM) of 1.22 μg/g. This GM is six times higher than the average internal exposure of mothers from other 17 European countries (0.225 μg/g). Near 70% of mothers presented levels of Hg above the USA EPA internal exposure guideline of 1 μg/g, and 27% exceeded the EFSA health-based guidance value of 1.9 μg/g. The multivariate regression analysis revealed that age, smoking and fish consumption (sword fish, small fat fish, small lean fish) were the major predictors of mercury in hair.