Contribution to the understanding of biologic concentrations of arsenic in children living in an urban area from Rio de Janeiro, Brazil
| Autor: | Paulo Rubens Guimarães Barrocas, Armando Mayer, Volney de Magalhaes Camara, Carmen Ildes Rodrigues Fróes Asmus, Thatiana Fernandes |
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| Rok vydání: | 2017 |
| Předmět: |
Male
Adolescent Health Toxicology and Mutagenesis chemistry.chemical_element Urine 010501 environmental sciences Urban area 01 natural sciences Mining Health data Arsenic 03 medical and health sciences Environmental health Biomonitoring Environmental Chemistry Medicine Humans Child Inductively coupled plasma mass spectrometry 0105 earth and related environmental sciences geography 030505 public health geography.geographical_feature_category Schools integumentary system business.industry Spectrophotometry Atomic General Medicine Environmental exposure Environmental Exposure Pollution chemistry Nails Female 0305 other medical science business Brazil |
| Zdroj: | Environmental science and pollution research international. 25(17) |
| ISSN: | 1614-7499 |
| Popis: | There are few studies about children’s environmental exposure to arsenic (As) in Brazil, most of them being in mining regions. The objective of this study was to contribute to the understanding of biologic concentrations of arsenic in children living in an urban area, in Brazil. A study of arsenic concentrations in capillary blood (n = 270), nail (n = 261), and urine (n = 99) samples, in male and female children, 8 to 10 years old, from two public schools in Rio de Janeiro, was conducted. Socio-economic and health data were obtained through questionnaires. The nail and capillary blood analysis were performed by inductively coupled plasma mass spectrometry (ICP-MS), while urine samples were analyzed using hydride generation atomic absorption spectrometry (HG-AAS). The median, geometric mean, and 95th percentiles of total arsenic concentrations were, respectively, 2.53, 2.40, and 3.58 μg/L in capillary blood; 0.09, 0.10, and 0.24 μg/g in nails; and 12.50, 10.97, and 39.45 μg/L in urine. The geometric mean of urinary arsenic level was above the values reported by international surveys for non-exposed populations. The arsenic concentrations in nails were compatible with the values found in national studies. These outcomes can contribute to the increase of knowledge on biologic concentrations of arsenic in children living in urban areas, in Brazil. |
| Databáze: | OpenAIRE |
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