Microstuctural analysis and determination of PM10 emission sources in an industrial Mediterranean city

Tolis, Evangelos I.; Gkanas, Evangelos I.; Pavlidou, E.; Skemperi, Athina; Pey, Jorge; Pérez, Noemí; Bartzis, John G.

doi:10.2478/s11532-014-0549-8

Cited by 3 publications

(2 citation statements)

References 32 publications

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“…This means that methods that separate certain components from the total load cannot be used and the sample must be analyzed in its entirety. Scanning electron microscopy (SEM) can help to provide additional information about composition and properties of dust particles from samples of low quantities (Hinz et al, 1998;Edgerton et al, 2009;Tolis et al, 2014). Most studies were focused on specific components or elements in the dust, as soot, heavy metals or the mineral and microbiological composition for air quality reasons or source identification (Twiss et al 1969;Falkovich et al, 2001;Tervahattu et al, 2004;Ramirez-Leal et al, 2014;Rout et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Phytoliths in particulate matter released by wind erosion on arable land in La Pampa, Argentina

Funk¹,

Busse²,

Siegmund³

et al. 2022

Front. Environ. Sci.

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Silicon (Si) is considered a beneficial element in plant nutrition, but its importance on ecosystems goes far beyond that. Various forms of silicon are found in soils, of which the phytogenic pool plays a decisive role due to its good availability. This Si returns to the soil through the decomposition of plant residues, where they then participate in the further cycle as biogenic amorphous silica (bASi) or so-called phytoliths. These have a high affinity for water, so that the water holding capacity and water availability of soils can be increased even by small amounts of ASi. Agricultural land is a considerable global dust source, and dust samples from arable land have shown in cloud formation experiments a several times higher ice nucleation activity than pure mineral dust. Here, particle sizes in the particulate matter fractions (PM) are important, which can travel long distances and reach high altitudes in the atmosphere. Based on this, the research question was whether phytoliths could be detected in PM samples from wind erosion events, what are the main particle sizes of phytoliths and whether an initial quantification was possible.Measurements of PM concentrations were carried out at a wind erosion measuring field in the province La Pampa, Argentina. PM were sampled during five erosion events with Environmental Dust Monitors (EDM). After counting and classifying all particles with diameters between 0.3 and 32 µm in the EDMs, they are collected on filters. The filters were analyzed by Scanning Electron Microscopy and Energy Dispersive X-Ray analysis (SEM-EDX) to investigate single or ensembles of particles regarding composition and possible origins.The analyses showed up to 8.3 per cent being phytoliths in the emitted dust and up to 25 per cent of organic origin. Particles of organic origin are mostly in the coarse dust fraction, whereas phytoliths are predominately transported in the finer dust fractions. Since phytoliths are both an important source of Si as a plant nutrient and are also involved in soil C fixation, their losses from arable land via dust emissions should be considered and its specific influence on atmospheric processes should be studied in detail in the future.

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Section: Introductionmentioning

confidence: 99%

Phytoliths in particulate matter released by wind erosion on arable land in La Pampa, Argentina

Funk¹,

Busse²,

Siegmund³

et al. 2022

Front. Environ. Sci.

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show abstract

“…In this sense, total suspended particles (TSP) and PM 2.5 were found through SEM to be mainly composed of quartz and clay minerals in the Canary Islands of Spain [23]. SEM analysis showed that the PM 10 in an industrial Mediterranean city can be divided into three different groups: mineral phases, the compounds from combustion processes and the particles emitted from high-temperature processes [24]. The microscopic morphology of atmospheric particulate matter mainly included soot, fly ash, mineral particles, organic particles, sulphate particles, biomass particles [25][26][27].…”

Section: Introductionmentioning

confidence: 99%

Characteristics and Source Analysis of PM1 in a Typical Steel-Industry City, Southwest China

et al. 2022

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Mining activities have led to severe air pollution problems while they make great contributions to economic construction. Therefore, as a typical steel-industry city in southwest China, Panzhihua, its air pollution has received extensive attention. The characteristics of PM1 in different functional areas of Panzhihua from 2018 to 2019, and the changes of its microstructure and potentially toxic elements (PTEs) and the sources of PM1 were analyzed. The results showed that the mass concentrations of PM1 in the heavy pollution area of Nongnongping (NNP) and the complex industrial pollution area of Hemenkou (HMK) were 12.12–145.30 μg/m3 and 14.38–67.02 μg/m3, respectively. Seasonal PM1 mass concentrations in the two functional areas could be arranged in the following order: winter > autumn > spring > summer. The main particle types in PM1 were fly ash, soot, sulphate particles, aluminosilicate particles and metal particles. Potential sources of PM1 in Panzhihua included coal burning, biomass combustion, automobile exhaust and mining activities. At the same time, the average concentrations of PTEs at NNP were also higher than those at HMK because of smelting activities. Enrichment factor analysis showed that most of the PTEs came from human sources. The results could provide theoretical guidance for environmental management.

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Microscopic morphology and seasonal variation of health effect arising from heavy metals in PM2.5 and PM10: One-year measurement in a densely populated area of urban Beijing

Gao

2018

Atmospheric Research

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Microstuctural analysis and determination of PM10 emission sources in an industrial Mediterranean city

Cited by 3 publications

References 32 publications

Phytoliths in particulate matter released by wind erosion on arable land in La Pampa, Argentina

Phytoliths in particulate matter released by wind erosion on arable land in La Pampa, Argentina

Characteristics and Source Analysis of PM1 in a Typical Steel-Industry City, Southwest China

Microscopic morphology and seasonal variation of health effect arising from heavy metals in PM2.5 and PM10: One-year measurement in a densely populated area of urban Beijing

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