Identification of inhalable rutile and polycyclic aromatic hydrocarbons (PAHs) nanoparticles in the atmospheric dust

Ana L. Gallego-Hernández; Diana Meza-Figueroa; Judith Tanori; Mónica Acosta-Elías; Belem González-Grijalva; Juan F. Maldonado-Escalante; Sarai Rochín-Wong; Diego Soto-Puebla; Sofia Navarro-Espinoza; Roberto Ochoa-Contreras; Martín Pedroza-Montero

doi:10.1016/j.envpol.2020.114006

Identification of inhalable rutile and polycyclic aromatic hydrocarbons (PAHs) nanoparticles in the atmospheric dust

Ana L. Gallego-Hernández, Diana Meza-Figueroa, Judith Tanori, Mónica Acosta-Elías, Belem González-Grijalva, Juan F. Maldonado-Escalante, Sarai Rochín-Wong, Diego Soto-Puebla, Sofia Navarro-Espinoza, Roberto Ochoa-Contreras, Martín Pedroza-Montero^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Addressing the presence of rutile nanoparticles (NPs) in the air is a work in progress, and the development of methodologies for the identification of NPs in atmospheric dust is essential for the assessment of its toxicological effects. To address this issue, we selected the fast growing desertic city of Hermosillo in northern Mexico. Road dust (n = 266) and soils (n = 10) were sampled and bulk Ti-contents were tested by portable X-ray fluorescence. NPs were extracted from atmospheric dust by PM_1.0-PTFE filters and further characterized by Confocal Raman Microscopy, Energy-dispersive X-ray spectroscopy (EDS) coupled to Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM). Results showed (i) the average concentration of Ti in road dust (3447 mg kg⁻¹) was similar to natural values and worldwide urban dusts; (ii) the bulk geochemistry was not satisfactory for Ti-NPs identification; (iii) 76% of the total extracted PM_1.0 sample corresponded to NPs; (iv) mono-microaggregates of rutile NPs were identified; (v) ubiquitous polycyclic aromatic hydrocarbons (PAHs) were linked to NPs. The genotoxicity of rutile and PAHs, in connection with NPs content, make us aware of a crucial emerging environmental issue of significant health concern, justifying further research in this field.

Original language	English
Article number	114006
Journal	Environmental Pollution
Volume	260
DOIs	https://doi.org/10.1016/j.envpol.2020.114006
State	Published - May 2020

Bibliographical note

Funding Information:
National Council for Science and Technology in Mexico ( CONACYT ) Grant A1-S-29697 to Diana Meza-Figueroa. Ana L. Gallego-Hernández was funded by a Repatriation fellowship from CONACyT.

Funding Information:
National Council for Science and Technology in Mexico (CONACYT) Grant A1-S-29697 to Diana Meza-Figueroa. Ana L. Gallego-Hern?ndez was funded by a Repatriation fellowship from CONACyT.

Publisher Copyright:
© 2020 Elsevier Ltd

Keywords

Arid areas
Atmospheric dust
PM

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10.1016/j.envpol.2020.114006

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Gallego-Hernández, A. L., Meza-Figueroa, D., Tanori, J., Acosta-Elías, M., González-Grijalva, B., Maldonado-Escalante, J. F., Rochín-Wong, S., Soto-Puebla, D., Navarro-Espinoza, S., Ochoa-Contreras, R., & Pedroza-Montero, M. (2020). Identification of inhalable rutile and polycyclic aromatic hydrocarbons (PAHs) nanoparticles in the atmospheric dust. Environmental Pollution, 260, [114006]. https://doi.org/10.1016/j.envpol.2020.114006

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title = "Identification of inhalable rutile and polycyclic aromatic hydrocarbons (PAHs) nanoparticles in the atmospheric dust",

abstract = "Addressing the presence of rutile nanoparticles (NPs) in the air is a work in progress, and the development of methodologies for the identification of NPs in atmospheric dust is essential for the assessment of its toxicological effects. To address this issue, we selected the fast growing desertic city of Hermosillo in northern Mexico. Road dust (n = 266) and soils (n = 10) were sampled and bulk Ti-contents were tested by portable X-ray fluorescence. NPs were extracted from atmospheric dust by PM1.0-PTFE filters and further characterized by Confocal Raman Microscopy, Energy-dispersive X-ray spectroscopy (EDS) coupled to Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM). Results showed (i) the average concentration of Ti in road dust (3447 mg kg−1) was similar to natural values and worldwide urban dusts; (ii) the bulk geochemistry was not satisfactory for Ti-NPs identification; (iii) 76% of the total extracted PM1.0 sample corresponded to NPs; (iv) mono-microaggregates of rutile NPs were identified; (v) ubiquitous polycyclic aromatic hydrocarbons (PAHs) were linked to NPs. The genotoxicity of rutile and PAHs, in connection with NPs content, make us aware of a crucial emerging environmental issue of significant health concern, justifying further research in this field.",

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year = "2020",

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doi = "10.1016/j.envpol.2020.114006",

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Gallego-Hernández, AL, Meza-Figueroa, D , Tanori, J, Acosta-Elías, M, González-Grijalva, B, Maldonado-Escalante, JF, Rochín-Wong, S, Soto-Puebla, D, Navarro-Espinoza, S, Ochoa-Contreras, R & Pedroza-Montero, M 2020, 'Identification of inhalable rutile and polycyclic aromatic hydrocarbons (PAHs) nanoparticles in the atmospheric dust', Environmental Pollution, vol. 260, 114006. https://doi.org/10.1016/j.envpol.2020.114006

TY - JOUR

T1 - Identification of inhalable rutile and polycyclic aromatic hydrocarbons (PAHs) nanoparticles in the atmospheric dust

AU - Gallego-Hernández, Ana L.

AU - Meza-Figueroa, Diana

AU - Tanori, Judith

AU - Acosta-Elías, Mónica

AU - González-Grijalva, Belem

AU - Maldonado-Escalante, Juan F.

AU - Rochín-Wong, Sarai

AU - Soto-Puebla, Diego

AU - Navarro-Espinoza, Sofia

AU - Ochoa-Contreras, Roberto

AU - Pedroza-Montero, Martín

PY - 2020/5

Y1 - 2020/5

N2 - Addressing the presence of rutile nanoparticles (NPs) in the air is a work in progress, and the development of methodologies for the identification of NPs in atmospheric dust is essential for the assessment of its toxicological effects. To address this issue, we selected the fast growing desertic city of Hermosillo in northern Mexico. Road dust (n = 266) and soils (n = 10) were sampled and bulk Ti-contents were tested by portable X-ray fluorescence. NPs were extracted from atmospheric dust by PM1.0-PTFE filters and further characterized by Confocal Raman Microscopy, Energy-dispersive X-ray spectroscopy (EDS) coupled to Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM). Results showed (i) the average concentration of Ti in road dust (3447 mg kg−1) was similar to natural values and worldwide urban dusts; (ii) the bulk geochemistry was not satisfactory for Ti-NPs identification; (iii) 76% of the total extracted PM1.0 sample corresponded to NPs; (iv) mono-microaggregates of rutile NPs were identified; (v) ubiquitous polycyclic aromatic hydrocarbons (PAHs) were linked to NPs. The genotoxicity of rutile and PAHs, in connection with NPs content, make us aware of a crucial emerging environmental issue of significant health concern, justifying further research in this field.

AB - Addressing the presence of rutile nanoparticles (NPs) in the air is a work in progress, and the development of methodologies for the identification of NPs in atmospheric dust is essential for the assessment of its toxicological effects. To address this issue, we selected the fast growing desertic city of Hermosillo in northern Mexico. Road dust (n = 266) and soils (n = 10) were sampled and bulk Ti-contents were tested by portable X-ray fluorescence. NPs were extracted from atmospheric dust by PM1.0-PTFE filters and further characterized by Confocal Raman Microscopy, Energy-dispersive X-ray spectroscopy (EDS) coupled to Transmission Electron Microscopy (TEM) and Scanning Electron Microscopy (SEM). Results showed (i) the average concentration of Ti in road dust (3447 mg kg−1) was similar to natural values and worldwide urban dusts; (ii) the bulk geochemistry was not satisfactory for Ti-NPs identification; (iii) 76% of the total extracted PM1.0 sample corresponded to NPs; (iv) mono-microaggregates of rutile NPs were identified; (v) ubiquitous polycyclic aromatic hydrocarbons (PAHs) were linked to NPs. The genotoxicity of rutile and PAHs, in connection with NPs content, make us aware of a crucial emerging environmental issue of significant health concern, justifying further research in this field.

KW - Arid areas

KW - Atmospheric dust

KW - PM

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U2 - 10.1016/j.envpol.2020.114006

DO - 10.1016/j.envpol.2020.114006

M3 - Artículo

C2 - 32000024

AN - SCOPUS:85078318010

VL - 260

JO - Environmental Pollution

JF - Environmental Pollution

SN - 0269-7491

M1 - 114006

ER -

Identification of inhalable rutile and polycyclic aromatic hydrocarbons (PAHs) nanoparticles in the atmospheric dust

Abstract

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Keywords

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