Particle size distribution of mineral phases and metals in dusts collected at different workplaces

Hlavay, József; Polyák, Klára; Wesemann, G.

doi:10.1007/bf00321840

Cited by 26 publications

(9 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2). This observation is helpful for risk assessment of trace elements in PM due to the potential role of inhaled transition metals in oxidative stress, DNA damage, or lung cancer (Natusch et al 1974;Hlavay et al 1992;Costa and Dreher 1997;Donaldson et al 1997;Kadiiska et al 1997;Ghio et al 1999;Adamson et al 2000;Shi et al 2003;Lingard et al 2005). This finding shows the importance of measuring elements in the fine and nano range in the exposure assessment of PM particles like EHC-93.…”

Section: Ehc-93 Samplesmentioning

confidence: 77%

Concentration Distribution and Bioaccessibility of Trace Elements in Nano and Fine Urban Airborne Particulate Matter: Influence of Particle Size

Niu

Rasmussen

Hassan

et al. 2010

Water Air Soil Pollut

View full text Add to dashboard Cite

Trace elements, especially those associated with fine particles in airborne particulate matter (PM), may play an important role in PM adverse health effect. The aim of this paper is to characterize elements in a wide particle size range from nano (57-100 nm) to fine (100-1,000 nm) and to coarse (1,000-10,000 nm) fractions of two urban PM samples collected in Ottawa. Size-selective particle sampling was performed using a micro-orifice uniform deposit impactor, and element concentrations were determined in each different size fraction by inductively coupled plasma-mass spectroscopy. A general trend of increasing element concentration with decreasing aerodynamic diameter was observed for elements V, Mn, Ni, Cu, Zn, Se, and Cd, indicating they were predominately concentrated in the nanoparticle size range. Other elements including Fe, Sr, Mo, Sn, Sb, Ba, and Pb were predominately concentrated in the fine-size range. Increased concentration of elements in the nano and fine particle size range is significant due to their ability to penetrate into the deepest alveolar area of the lungs. This was confirmed by the calculation of median concentration diameters, which were less than 800 nm for most of the investigated elements. Particle size distribution and element correlation analysis suggest that the elements concentrated in the nano-and fine-size fractions originated mainly from vehicular combustion and emission. Long-range airborne transport and soil or road dust resuspension may also contribute. Particle size had an important effect on element bioaccessibility for the studied urban PM samples showing a general trend of increasing element bioaccessibility with decreasing particle size. These results emphasize the importance of acquiring information on nano and/or fine PM-bound elements and their bioaccessibilities for accurate element and PM exposure assessment.

show abstract

Section: Ehc-93 Samplesmentioning

confidence: 77%

Concentration Distribution and Bioaccessibility of Trace Elements in Nano and Fine Urban Airborne Particulate Matter: Influence of Particle Size

Niu

Rasmussen

Hassan

et al. 2010

Water Air Soil Pollut

View full text Add to dashboard Cite

show abstract

“…They are followed by data processing, the selection of a statistical method, then the interpretation and evaluation of the results, and eventually provide final pieces of information on the state of the environment and rectifying (if necessary) steps. The reliability and precision of determinations are highly important when they refer to toxic substances present in the environment (Hlavay et al 1992;Gong et al 2014;Klojzy-Karczmarczyk 2014;AlHwaiti and Al-Khashman 2015;Stala-Szlugaj 2016). Deleterious elements include heavy metals, particularly Cd, Pb, Tl and As (in fact, arsenic is a metalloid, but for the brevity it will be further referred to as a metal).…”

Section: Introductionmentioning

confidence: 99%

Health risk assessment related to an effect of sample size fractions: methodological remarks

Kicińska

2017

Stoch Environ Res Risk Assess

View full text Add to dashboard Cite

Contents of As, Cd, Co, Cr, Cu, Ni, Pb and Zn were determined in the material collected in sandboxes of seven spa resorts located in S Poland (CCE) and their results used to establish a health risk of children. After sieving out grains [ 2 mm, the bulk samples were quantitatively separated into four grain fractions: 2000-1000, 1000-200, 200-63 and \ 63 lm. In each of them were determined: the mineral composition, the total contents of the elements, and the distribution of the elements among the fractions distribution factor. In the bulk material \ 2 mm, the totals of the elements are 5-64 times lower than in the finest fractions (\ 63 lm). Considering that the finest fractions are enriched in clay minerals such as clinochlore, illite and kaolinite, which can adsorb and desorb metals, this material is most dangerous for children, staying both permanently and temporarily in the spas. The total health risks HI resulting from non-carcinogenic elements present in the fractions \ 63 lm are 1.26 and 0.94, for the children-residents 3 and 6 years old, respectively. The figures are disturbing as one of them exceeds and the other is close to a permissible limit of 1. The highest contribution (93.4%) into the total HI is caused by inadvertent swallowing the soil ''dirt'': the ingestion path HQ ing for the 3 years old residents is 1.17, and for the 6-year olds 0.88. With respect to the elements, the highest is the risk resulting from Pb: HQ in values of the residents are 4.71E-01 and 3.54E-01 for the 3-year olds and the 6-year olds. Slightly lower are the HQ ing values calculated for both age groups: in the case of Cr-3.12E-01 and 2.34E-01 and As-2.92E-01 and 2.19E-01). The dermal path (HQ dermal ) contributes to the total HI much less as it equals 6.5%, while the contribution of the inhalation path (HQ inhal ) is considerably the lowest and equals only 0.1%. The Risk indexes determined in the case of cancerogenic components for both age groups of the spa residents are lower than the permissible limit 10E-5 and equal 6.48E-06 and 9.72E-06, respectively. Considering the children that only visit the spas, all the calculated indexes, i.e., HI and Risk, are significantly lower than those determined for the children-residents.

show abstract

“…in the form of landfill disposal. When assessing the effects of ash handling, physico-chemical properties, such as particle size fractions and the possible occurrence of toxic minerals and/or metals and their concentrations, are important factors for hygienists and analytical chemists in characterizing the possible health effects of ash handling at the workplaces, such as incineration plants and disposal sites (Hlavay et al, 1992;Osán et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Particle size distribution and dissolution properties of metals in cyclone fly ash

Rönkkömäki

Pöykiö

Nurmesniemi

et al. 2008

Int. J. Environ. Sci. Technol.

View full text Add to dashboard Cite

ABSTRACT:The particles in the examined cyclone fly ash were all smaller than 0.25 mm. in diameter, and particles smaller than 0.075 mm. in diameter accounted for 88.4 % of the ash weight. This result indicates that cyclone fly ash consists of particles with a small diameter. The metals in the cyclone fly ash were enriched in small particles. The highest concentrations for zinc, copper, lead, cadmium and molybdenum in the cyclone fly ash were found in the smallest particle size fraction (< 0.075 mm.) and for Barium, chromium, nickel, Vanadium and Cobalt in the second to smallest particle size fraction (0.075-0.125 mm.). From an environmental and toxicological standpoint, the smallest particles are of the greatest concern when ash is handed at landfill disposal sites (transport and disposal especially in stormy weather conditions), and some studies have reported risks to workers from prolonged exposure to ash. The results of the comparison of various dissolution methods for metals showed that the digestion procedures with nitric acid alone (USEPA 3051) or with a mixture of nitric acid + hydrogen peroxide (USEPA 3050B) slightly underestimated the metal concentrations in the cyclone fly ash. Although the use of hydrofluoric acid is often necessary for the determination of a number of elements associated with siliceous minerals, its use can result in loss of trace elements during dissolution.

show abstract

Particle size distribution of mineral phases and metals in dusts collected at different workplaces

Cited by 26 publications

References 5 publications

Concentration Distribution and Bioaccessibility of Trace Elements in Nano and Fine Urban Airborne Particulate Matter: Influence of Particle Size

Concentration Distribution and Bioaccessibility of Trace Elements in Nano and Fine Urban Airborne Particulate Matter: Influence of Particle Size

Health risk assessment related to an effect of sample size fractions: methodological remarks

Particle size distribution and dissolution properties of metals in cyclone fly ash

Contact Info

Product

Resources

About