In vitro assessment oral and respiratory bioaccessibility of Mn in school dust: Insight of seasonality in a semiarid environment

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:	chemistry Geochemistry and Petrology Environmental chemistry medicine Environmental Chemistry chemistry.chemical_element Environmental science Manganese Health risk Seasonality medicine.disease complex mixtures Pollution
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:	https://explore.openaire.eu/search/publication?articleId=doi_________::6ac4fed8f34ed3040b295d8f02cd56af https://doi.org/10.1016/j.apgeochem.2021.105102 Zobrazit plný text záznamu Full Text from ScienceDirect