Personal inhalation exposure to manganese and other trace metals in an environmentally exposed population: Bioaccessibility in size-segregated particulate matter samples

Expósito, Andrea; Markiv, Bohdana; Ruiz-Azcona, Laura; Santibáñez, Miguel; Fernández-Olmo, Ignacio

doi:10.1016/j.apr.2021.101123

Cited by 10 publications

(8 citation statements)

References 33 publications

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“…Despite the dominance of the PM 10 size fraction of the atmospheric Mn budget due to the coarse nature of dust (Table 1), Mn in atmospheric PM 2.5 is also important because of the high percentage of fine fraction in wildfires and industrial dust (Table 1) and the potential health risks that could be induced by inhalation of Mn in PM 2.5 in ambient air (Cavallari et al., 2008; Expósito et al., 2021). Generally, we obtained similar global distribution patterns and results of the model‐observation comparison as in PM 10 .…”

Section: Resultsmentioning

confidence: 99%

Characterizing the Atmospheric Mn Cycle and Its Impact on Terrestrial Biogeochemistry

Lu,

Li,

Rathod

et al. 2024

Global Biogeochemical Cycles

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The role of manganese (Mn) in ecosystem carbon (C) biogeochemical cycling is gaining increasing attention. While soil Mn is mainly derived from bedrock, atmospheric deposition could be a major source of Mn to surface soils, with implications for soil C cycling. However, quantification of the atmospheric Mn cycle, which comprises emissions from natural (desert dust, sea salts, volcanoes, primary biogenic particles, and wildfires) and anthropogenic sources (e.g., industrialization and land‐use change due to agriculture), transport, and deposition, remains uncertain. Here, we use compiled emission data sets for each identified source to model and quantify the atmospheric Mn cycle by combining an atmospheric model and in situ atmospheric concentration measurements. We estimated global emissions of atmospheric Mn in aerosols (<10 μm in aerodynamic diameter) to be 1,400 Gg Mn year−1. Approximately 31% of the emissions come from anthropogenic sources. Deposition of the anthropogenic Mn shortened Mn “pseudo” turnover times in 1‐m‐thick surface soils (ranging from 1,000 to over 10,000,000 years) by 1–2 orders of magnitude in industrialized regions. Such anthropogenic Mn inputs boosted the Mn‐to‐N ratio of the atmospheric deposition in non‐desert dominated regions (between 5 × 10−5 and 0.02) across industrialized areas, but that was still lower than soil Mn‐to‐N ratio by 1–3 orders of magnitude. Correlation analysis revealed a negative relationship between Mn deposition and topsoil C density across temperate and (sub)tropical forests, consisting with atmospheric Mn deposition enhancing carbon respiration as seen in in situ biogeochemical studies.

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Section: Resultsmentioning

confidence: 99%

Characterizing the Atmospheric Mn Cycle and Its Impact on Terrestrial Biogeochemistry

Lu,

Li,

Rathod

et al. 2024

Global Biogeochemical Cycles

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“…A study conducted in residential areas near a FeMn metallurgy plant in Boulogne-Sur-Mer, France, found high Fe and Mn concentrations in a residential area within 200 m [88]. In another study conducted in Cantabria, Spain, Expósito et al [76] found higher concentrations of airborne Mn concentrations in residential areas within 1.5 km of the FeMn smelter. The airborne Fe concentrations can also be attributed to the corrugated Fe used for roofing and constructing shacks.…”

Section: Elemental Composition Of Indoor and Outdoor Pm 25mentioning

confidence: 96%

“…Studies by Martuzevicius et al [73] and Abdel-Salam [74] found a significant correlation between the distance from major traffic roads and outdoor PM 2.5 mass concentrations in residential areas. The difference in outdoor PM 2.5 mass concentrations across the three residential areas could be due to variation in the source, source strength, distance from the source, and different meteorological conditions [7,8,75,76].…”

Section: Indoor and Outdoor Pm 25 Mass Concentrationmentioning

confidence: 99%

Physicochemical Properties of Indoor and Outdoor Particulate Matter 2.5 in Selected Residential Areas near a Ferromanganese Smelter

Mbazima

Masekameni

Nelson

2021

IJERPH

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Particulate matter (PM) of different sizes and elemental composition is a leading contributor to indoor and outdoor air pollution in residential areas. We sought to investigate similarities between indoor and outdoor PM2.5 in three residential areas near a ferromanganese smelter in Meyerton to apportion the emission source(s). Indoor and outdoor PM2.5 samples were collected concurrently, using GilAir300 plus samplers, at a flow rate of 2.75 L/min. PM2.5 was collected on polycarbonate membrane filters housed in 37 mm cassettes coupled with PM2.5 cyclones. Scanning electron microscopy coupled with energy-dispersive spectroscopy was used to study the morphology, and inductively coupled plasma-mass spectroscopy was used to analyse the elemental composition of the PM2.5. Mean indoor and outdoor PM2.5 mass concentrations were 10.99 and 24.95 µg/m3, respectively. Mean outdoor mass concentration was 2.27-fold higher than the indoor concentration. Indoor samples consisted of irregular and agglomerated particles, ranging from 0.09 to 1.06 µm, whereas outdoor samples consisted of irregular and spherical particles, ranging from 0.10 to 0.70 µm. Indoor and outdoor PM2.5 were dominated by manganese, silicon, and iron, however, outdoor PM2.5 had the highest concentration of all elements. The ferromanganese smelter was identified as the potential main contributing source of PM2.5 of different physicochemical properties.

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“…Filters were analysed in a two-step procedure described by Expósito et al (2021a). In summary, bioaccessible and total Mn concentrations were determined in PM 2.5 and PM 10-2.5 samples.…”

Section: Sampling and Analysismentioning

confidence: 99%

Environmental exposure to manganese and health risk assessment from personal sampling near an industrial source of airborne manganese

Markiv

Expósito

Ruiz-Azcona

et al. 2023

Environmental Research

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Personal inhalation exposure to manganese and other trace metals in an environmentally exposed population: Bioaccessibility in size-segregated particulate matter samples

Cited by 10 publications

References 33 publications

Characterizing the Atmospheric Mn Cycle and Its Impact on Terrestrial Biogeochemistry

Characterizing the Atmospheric Mn Cycle and Its Impact on Terrestrial Biogeochemistry

Physicochemical Properties of Indoor and Outdoor Particulate Matter 2.5 in Selected Residential Areas near a Ferromanganese Smelter

Environmental exposure to manganese and health risk assessment from personal sampling near an industrial source of airborne manganese

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