Weekly variation of atmospheric particle micromorphology and chemistry in Brussels urban environment

Zaady, Eli; Carati, Daniele; Брениг, Леон; Vanderstraeten, Peter; Lénelle, Y.; Meurrens, A.; Offer, Zvi Yehoshua

doi:10.1007/s10661-009-1149-5

Cited by 2 publications

(1 citation statement)

References 20 publications

(15 reference statements)

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“…Our main results concerning the airborne particle micromorphology and chemistry showed a possible temporal correlation between the eruption period and the regular airborne particle dynamics in Brussels Capital Region (Zaady et al 2010). These results are complemented by a previous study, which compared the non agricultural work periods (April) with the whole year round (Fig.…”

Section: Discussionsupporting

confidence: 78%

Atmospheric Pollution by Iceland Volcano Lava Dispersion - the Brussels Case

Offer¹,

Vanderstraeten²,

Брениг³

et al. 2012

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In April 2010 the Icelandic Eyjafjallajökull stratovolcano emitted large clouds of volcanic ashes that provoked chaotic situations for the air traffic of the Northern hemisphere. The impact of the resulting atmospheric pollution may have widespread effects on the health of the populations living in the affected regions. For this reason, the study of the airborne particles brought by the ash clouds must cover not only their concentrations expressed in μg/m 3 , but also their size, shape and chemical composition. Our results revealed that during the eruption days, some periods with a higher concentration of the coarse particles (between 2.5 and 10 μm) were observed. The sphericity (R1) and roughness (R2) parameters showed specific characteristics of the particles, suggesting long distance of their origin. Furthermore, an increase up to 4 times more in the At% of the elements K, Al, Ca, Na and Si, which characterize the felsic lava, was observed during the eruption period.

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Section: Discussionsupporting

confidence: 78%

Atmospheric Pollution by Iceland Volcano Lava Dispersion - the Brussels Case

Offer¹,

Vanderstraeten²,

Брениг³

et al. 2012

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In vitro exposure of nasal epithelial cells to atmospheric dust

Elad

Zaretsky

Avraham

et al. 2018

Biomech Model Mechanobiol

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Dust storms are common phenomena in many parts of the world, and significantly increase the level of atmospheric particulate matter (PM). The soil-derived dust is a mixture of organic and inorganic particles and even remnants of pesticides from agricultural areas nearby. The risk of human exposure to atmospheric dust is well documented, but very little is known on the impact of inhaled PM on the biological lining of the nasal cavity, which is the natural filter between the external environment and the respiratory tract. We developed a new system and methodology for in vitro exposure of cultured nasal epithelial cells (NEC) to atmospheric soil-dust pollutants under realistic and controlled laboratory simulations that mimic nasal breathing. We exposed cultured NEC to clean and dust-polluted airflows that mimic physiological conditions. The results revealed that the secretion of mucin and IL-8 from the NEC exposed to clean and dust-polluted airflows was less than the secretion at static conditions under clean air. The secretion of IL-8 from NEC exposed to dust-polluted air was larger than that of clean air, but not larger than in the static case. The experiments with dust air pollution that also contained agricultural pesticides did not reveal differences in the secretion of mucin and IL-8 as compared to the same pollution without pesticides.

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Weekly variation of atmospheric particle micromorphology and chemistry in Brussels urban environment

Cited by 2 publications

References 20 publications

Atmospheric Pollution by Iceland Volcano Lava Dispersion - the Brussels Case

Atmospheric Pollution by Iceland Volcano Lava Dispersion - the Brussels Case

In vitro exposure of nasal epithelial cells to atmospheric dust

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