Autor: |
Belem González-Grijalva, Ernesto Hernandez, Benedetto Schiavo, Sofía Navarro-Espinoza, Martín Pedroza-Montero, Jesús Roberto Vidal-Solano, Margarita Gutiérrez-Ruiz, Agueda E. Ceniceros-Gómez, Francisco J. Romero, Diana Meza-Figueroa |
Rok vydání: |
2021 |
Předmět: |
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Zdroj: |
Applied Geochemistry. 134:105102 |
ISSN: |
0883-2927 |
Popis: |
In school environments in the Sonoran Desert, dust contains anomalously high manganese (Mn) of geogenic origin, similar to those reported at industrial sites. Non-carcinogenic risk assessment for children exposed to Mn was estimated for two sampling seasons (pre-monsoon, post-monsoon). We determined the total Mn content in school dust samples by portable X-ray fluorescence (PXRF), and we used geochemical indices for Mn-source apportionment. We identified dust mineralogy by X-ray diffraction (XRD). We obtained the oral and lung bioaccessibility by in vitro tests. The results showed a much higher total Mn content (1725.7 mg·kg−1) in the |
Databáze: |
OpenAIRE |
Externí odkaz: |
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