Repozitorij Univerze v Novi Gorici

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Naslov:A new optical-based technique for real-time measurements of mineral dust concentration in PM10 using a virtual impactor
Avtorji:Drinovec, Luka (Avtor)
Sciare, Jean (Avtor)
Stavroulas, Iasonas (Avtor)
Bezantakos, S. (Avtor)
Pikridas, Michael (Avtor)
Unga, Florin (Avtor)
Savvides, Chrysanthos (Avtor)
Višnjić, Bojana (Avtor)
Remškar, Maja (Avtor)
Močnik, Griša (Avtor)
Datoteke:Gradivo nima datotek. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u. Povezava se odpre v novem oknu
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:Atmospheric mineral dust influences Earth’s radiative budget, cloud formation, and lifetime; has adverse health effects; and affects air quality through the increase of regulatory PM10 concentrations, making its real-time quantification in the atmosphere of strategic importance. Only few near-real-time techniques can discriminate dust aerosol in PM10 samples and they are based on the dust chemical composition. The online determination of mineral dust using aerosol absorption photometers offers an interesting and competitive alternative but remains a difficult task to achieve. This is particularly challenging when dust is mixed with black carbon, which features a much higher mass absorption cross section. We build on previous work using filter photometers and present here for the first time a highly timeresolved online technique for quantification of mineral dust concentration by coupling a high-flow virtual impactor (VI) sampler that concentrates coarse particles with an aerosol absorption photometer (Aethalometer, model AE33). The absorption of concentrated dust particles is obtained by subtracting the absorption of the submicron (PM1) aerosol fraction from the absorption of the virtual impactor sample (VIPM1 method). This real-time method for detecting desert dust was tested in the field for a period of 2 months (April and May 2016) at a regional background site of Cyprus, in the Eastern Mediterranean. Several intense desert mineral dust events were observed during the field campaign with dust concentration in PM10 up to 45 μgm
Ključne besede:aerosol absorption, mineral dust, on-line detection, air quality
Leto izida:2020
Št. strani:3799-3813
Številčenje:7, 13
COBISS_ID:22985475 Povezava se odpre v novem oknu
URN:URN:SI:UNG:REP:9JIBT91X
DOI:10.5194/amt-13-3799-2020 Povezava se odpre v novem oknu
Licenca:CC BY 4.0
To delo je dosegljivo pod licenco Creative Commons Priznanje avtorstva 4.0 Mednarodna
Število ogledov:560
Število prenosov:0
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Področja:Gradivo ni uvrščeno v področja.
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Skupna ocena:(0 glasov)
Vaša ocena:Ocenjevanje je dovoljeno samo prijavljenim uporabnikom.

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Gradivo je del revije

Naslov:Atmospheric Measurement Techniques
Skrajšan naslov:Atmos. Meas. Tech.
Založnik:EGU
ISSN:1867-1381
Leto izida:2020

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