A new methodological approach: The combined use of two-stage streaker samplers and optical particle counters for the characterization of airborne particulate matter

Mazzei, F.; Lucarelli, F.; Nava, S.; Prati, P.; Valli, G.; Vecchi, R.

doi:10.1016/j.atmosenv.2007.04.012

Cited by 31 publications

(20 citation statements)

References 27 publications

(23 reference statements)

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“…These results are in a good agreement with the results of some previous studies [4]. The size distribution of heavy metals can be obtained by comparing the results of elemental analysis to the data of the particle counter [15]. For that purpose, we calculated the correlations between the concentrations of a given element and of particles of a given optical size.…”

Section: Discussionsupporting

confidence: 79%

Analysis of Aerosols in Indoor Working Environment by X-Ray Fluorescence Technique (Xrf)

Čargonja¹,

Žauhar²,

Orlić³

2017

RadJ

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Abstract. In this study, fine particulate matter (PM2.5) was collected inside the metal workshop located in the suburb of the City of Rijeka, Croatia. The high intensity of welding and plasma cutting is characteristic for this metal workshop and, therefore, high levels of very fine metal aerosols were expected. The fine aerosol sampling on thin Teflon filters and subsequent XRF elemental analysis were performed. The sampling in the workshop was conducted in two sampling periods in May and November 2016. In total, 64 samples were collected, out of which 28 were 12-hours samples and 36 were hourly samples. Additionally, Trotec Optical Particle Counter PC220 was used to measure concentrations for 6 different optical sizes (0.3 µm, 0.5 µm, 1 µm, 2.5 µm, 5 µm and 10 µm) to obtain the particle size distribution. The sample analysis was carried out with X-Ray Fluorescence technique at the Laboratory for Elemental Microanalysis at the Department of Physics, University of Rijeka. Heavy metals such as Ti, Cr, Mn, Fe, Ni, Cu, Zn and Pb were detected. The results were compared to the average daily concentrations measured in the city centre. Concentrations of all measured metals in indoor air in our study were significantly higher than in the samples collected outdoors. The highest indoor/outdoor ratio was obtained for Fe and Mn. Weekly and daily variations of heavy metal concentrations were also analysed. As expected, the results showed that weekly and diurnal variations of metal concentrations follow the work intensity in the workshop. The particle size distribution shows that sub-micron particles are present in much higher concentrations than coarse particles. This indicates the harmfulness of welding fumes.

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Section: Discussionsupporting

confidence: 79%

Analysis of Aerosols in Indoor Working Environment by X-Ray Fluorescence Technique (Xrf)

Čargonja¹,

Žauhar²,

Orlić³

2017

RadJ

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“…An Optical Particle Counter (Grimm, mod.1.107) gave high time-resolved (10 minutes) information about number concentration in 31 size bins in the 0.25-32 μm range (details on this optical counter are given in Mazzei et al 2007). From 21 November to 4 December a Condensation Particle Counter (TSI, mod.3775) was also operated, in order to obtain information about the number concentration of particles with d > 4 nm.…”

Section: Additional Measurementsmentioning

confidence: 99%

4-hours resolution data to study PM10 in a “hot spot” area in Europe

Vecchi

Bernardoni

Fermo

et al. 2008

Environ Monit Assess

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Nowadays, high-time resolved aerosol studies are mandatory to better understand atmospheric processes, such as formation, removal, transport, deposition or chemical reactions. This work focuses on PM10 physical and chemical characterisation with high-time resolution: elements (from Na to Pb), ions and OC/EC fractions concentration were determined during two weeks Further measurements aimed at hourly elemental characterisation of fine and coarse fractions and at the determination of particles number concentration in the 0.25-32 μm size range in 31 bins. The chemical mass closure was carried out in both seasons, enhancing intra-day differences in PM10 composition. In Milan, the highest contribution came from organic matter (34% and 33% in summer and winter, respectively); other important contributors were secondary inorganic compounds (16% and 24% in summer and winter, respectively) and, in summer, crustal matter (14%). Temporal trends showed strong variations in PM10 composition during contiguous time-slots and diurnal variations in different components contribution were identified. Moreover, peculiar phenomena, which would have hardly been detected with 24-hours samplings, were evidenced. Particles removal due to precipitations, aerosol local production and long range transport were studied in detail.

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“…S. Han et al 2006; Oh, 2011; Tecer et al 2012; Mazzei et al, 2007; Chan et al, 2008; Hwang et al, 2008; Godoy et al, 2009). Several of these studies have employed multiple sites within a city to capture spatial as well as temporal variability in the source contributions (Stone et al 2010; Mazzei et al 2007; Cheung et al 2011; Chan et al 2008; Hwang et al 2008; Godoy et al 2009; Pakbin et al 2011). …”

Section: Introductionmentioning

confidence: 99%

Constrained source apportionment of coarse particulate matter and selected trace elements in three cities from the multi-ethnic study of atherosclerosis

Sturtz

Adar

Gould

et al. 2014

Atmospheric Environment

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PM10-2.5 mass and trace element concentrations were measured in Winston-Salem, Chicago, and St. Paul at up to 60 sites per city during two different seasons in 2010. Positive Matrix Factorization (PMF) was used to explore the underlying sources of variability. Information on previously reported PM10-2.5 tire and brake wear profiles was used to constrain these features in PMF by prior specification of selected species ratios. We also modified PMF to allow for combining the measurements from all three cities into a single model while preserving city-specific soil features. Relatively minor differences were observed between model predictions with and without the prior ratio constraints, increasing confidence in our ability to identify separate brake wear and tire wear features. Brake wear, tire wear, fertilized soil, and re-suspended soil were found to be important sources of copper, zinc, phosphorus, and silicon respectively across all three urban areas.

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A new methodological approach: The combined use of two-stage streaker samplers and optical particle counters for the characterization of airborne particulate matter

Cited by 31 publications

References 27 publications

Analysis of Aerosols in Indoor Working Environment by X-Ray Fluorescence Technique (Xrf)

Analysis of Aerosols in Indoor Working Environment by X-Ray Fluorescence Technique (Xrf)

4-hours resolution data to study PM10 in a “hot spot” area in Europe

Constrained source apportionment of coarse particulate matter and selected trace elements in three cities from the multi-ethnic study of atherosclerosis

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