Determination of trace metals in TSP and PM 2.5 materials collected in the Metropolitan Area of Monterrey, Mexico: A characterization study by XPS, ICP-AES and SEM-EDS

González, Lucy T.; Rodríguez, F.E. Longoria; Sánchez-Domínguez, Margarita; Cavazos, Aleyda; Leyva‐Porras, César; Silva-Vidaurri, L.G.; Askar, Karim Acuña; Kharissov, Boris Ildusovich; Villarreal-Chiu, Juan Francisco; Barbosa, Juan Manuel Alfaro

doi:10.1016/j.atmosres.2017.05.009

Cited by 51 publications

(31 citation statements)

References 86 publications

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“…Two types of agglomerates were found: fractal-like agglomerates, typically observed in INPs generating activities such as welding, and NP-collectors. Similar NP-collectors were recently observed in factories conducting MIG welding (46) and in PM collected from air pollution, (37) which indicates that they might be as common as the fractal-like agglomerates and should be studied in detail since they transport incidental nanoparticles on their surface.…”

Section: Discussionsupporting

confidence: 73%

“…(33) This finding motivated a thorough characterization of ultrafine particles, which have shown elevated concentrations of transition metals. (37)(38)(39)(40) These studies become really relevant considering magnetic INPs found in the brain contained traces of other transition metals including nickel (Ni), platinum (Pt), cobalt (Co) and possibly copper (Cu). (33) Detailed size and composition characterization of INPs is required to better understand their potential implications.…”

Section: Introductionmentioning

confidence: 99%

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Size, composition, morphology, and health implications of airborne incidental metal-containing nanoparticles

Gonzalez‐Pech

Stebounova

Ustunol

et al. 2019

Journal of Occupational and Environmental Hygiene

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There is great concern in the adverse health implications of engineered nanoparticles. However, there are many circumstances where the production of incidental nanoparticles, i.e., nanoparticles unintentionally generated as a side product of some anthropogenic process, is of even greater concern. In this study, metal-based incidental nanoparticles were measured in two occupational settings: a machining center and a foundry. On-site characterization of substrate-deposited incidental nanoparticles using a field-portable X-ray fluorescence provided some insights into the chemical characteristics of these metal-containing particles. The same substrates were then used to carry out further off-site analysis including single particle analysis using scanning electron microscopy and energy-dispersive X-ray spectroscopy. Between the two sites, there were similarities in the size and composition of the incidental nanoparticles as well as in the agglomeration and coagulation behavior of nanoparticles. In particular, incidental nanoparticles were identified in two forms: sub-micrometer fractal-like agglomerates from activities such as welding and super-micrometer particles with incidental nanoparticles coagulated to their surface, herein referenced as nanoparticle collectors. These agglomerates will affect deposition and transport inside the respiratory system of the respirable incidental nanoparticles and the corresponding health implications. The studies of incidental nanoparticles generated in occupational settings lay the groundwork on which occupational health and safety protocols should be built.

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Section: Discussionsupporting

confidence: 73%

Section: Introductionmentioning

confidence: 99%

Size, composition, morphology, and health implications of airborne incidental metal-containing nanoparticles

Gonzalez‐Pech

Stebounova

Ustunol

et al. 2019

Journal of Occupational and Environmental Hygiene

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“…Previous studies have identified these elements arising from sources such as road dust and soil (Jancsek-Turóczi et al, 2013;Panda and Shiva Nagendra, 2018). Under the vehicle category, 1419 individual particles were classified from the in-front/clear area filter paper and, of those, 903 particles were iron and its oxides, usually found in exhaust and brake and tyre wear from road vehicles (Weerakkody et al, 2018 (González et al, 2017;Mazziotti Tagliani et al, 2017;Weerakkody et al, 2018), of which, Ba, Zn, and Cu have been identified as brake lining emissions in previous studies (Hays et al, 2011;Moreno et al, 2015). Salt is used on the roads for gritting and NaCl crystals were clearly noticeable as perfect cuboids in the collected particles.…”

Section: Elemental Composition Of Individual Particlesmentioning

confidence: 99%

Field investigations for evaluating green infrastructure effects on air quality in open-road conditions

Abhijith

Kumar

2019

Atmospheric Environment

144

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Many people live, work and spend time during their commute in near-road environments (<50 m) where pollutant concentrations usually remain high. We investigated the influence of roadside green infrastructure (GI) on concentrations of particulate matter ≤10 µm (PM10), ≤2.5 µm (PM2.5), ≤1 µm (PM1), black carbon (BC) and particle number concentrations (PNC) under three GI configurations-(i) hedges only, (ii) trees only, and (iii) a mix of trees and *

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“…Furthermore, high loads of Zn and Cu were observed in PC1. These are indicator elements of road dust, because Zn and Cu are related to both vehicle exhaust emissions and the wear of brakes and tires [39]. As a result, PC1 represents a mixture of sources-soil dust and traffic emissions.…”

Section: Principal Component Analysismentioning

confidence: 99%

Wet Deposition of Trace Metals at a Typical Urban Site in Southwestern China: Fluxes, Sources and Contributions to Aquatic Environments

et al. 2017

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Abstract:In this study, we quantified the atmospheric wet deposition (AWD) of 13 trace metals (TMs) and estimated their potential effects on the surface water of the Three Gorges Reservoir in China. Precipitation was collected in Wanzhou in southwestern China from March 2015 to February 2016. The concentrations and fluxes of the 13 TMs were in the ranges of 0.16-9.44 µg L −1 and 0.18-10.22 mg m −2 yr −1 , respectively, in the order Al > Zn > Fe > Ba > Pb > Mn > Ti > Cd > Cu > As > V > Ni ≈ Cr. Using principal component analysis, it was found that Al, Ba, Cu, Fe, Mn and Zn were mainly derived from a mixture of soil and road dust, As, Cd, Cr, Pb and Ti primarily originated from the local industries, and Ni and V were related to diesel and gasoline combustion, including both vehicle exhaust emissions and ship emissions from the nearby Yangtze River. The estimated TM inputs to the Three Gorges Reservoir were 11.1, 11.0, 5.7, 5.3, 4.5, 2.7, 2.5, 1.5, 1.0, 0.7, 0.5, 0.2, and 0.2 t yr −1 for Al, Zn, Fe, Ba, Pb, Mn, Ti, Cd, Cu, As, V, Ni and Cr, respectively. The AWD TM fluxes in Wanzhou were lower than those in metropolises and their inputs were limited for surface water of the Three Gorges Reservoir. However, Cd was strongly enriched in precipitation and rainstorms greatly increased the surface water concentrations of Cd and Pb. Therefore, the behavior of Cd and Pb in southwestern mountain areas of China, including emission, transport, transformation, and their ecological effects, should be given more attention in future studies.

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Determination of trace metals in TSP and PM 2.5 materials collected in the Metropolitan Area of Monterrey, Mexico: A characterization study by XPS, ICP-AES and SEM-EDS

Cited by 51 publications

References 86 publications

Size, composition, morphology, and health implications of airborne incidental metal-containing nanoparticles

Size, composition, morphology, and health implications of airborne incidental metal-containing nanoparticles

Field investigations for evaluating green infrastructure effects on air quality in open-road conditions

Wet Deposition of Trace Metals at a Typical Urban Site in Southwestern China: Fluxes, Sources and Contributions to Aquatic Environments

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