Pregled bibliografske jedinice broj: 808672
Middle Adriatic study of the sea surface films as a sink and source of trace organics of marine aerosols
Middle Adriatic study of the sea surface films as a sink and source of trace organics of marine aerosols // 2016 Ocean Science Meeting
New Orleans (LA), Sjedinjene Američke Države, 2016. (poster, međunarodna recenzija, neobjavljeni rad, znanstveni)
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Naslov
Middle Adriatic study of the sea surface films as a sink and source of trace organics of marine aerosols
Autori
Frka, Sanja ; Cvitešić, Ana ; Kroflič, Ana ; Grgić, Irena ; Šala, Martin ; Ciglenečki, Irena
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, neobjavljeni rad, znanstveni
Skup
2016 Ocean Science Meeting
Mjesto i datum
New Orleans (LA), Sjedinjene Američke Države, 21.02.2016. - 26.02.2016
Vrsta sudjelovanja
Poster
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
marine aerosols ; sea surface microlayer ; trace organics
(marine aerosols ; sea surface microlayer ; trace organics ; surfactants)
Sažetak
Properties, (trans)formation, and removal of organic particles remain the least understood aspects of atmospheric chemistry despite the importance of organic aerosol (OA) for both human health and climate change. Recently, organosulfur compounds (OS) have come into the focus of atmospheric research as significant reservoirs of S in the atmosphere, being potentially important components of gas-to- particle conversion and formation of secondary organic aerosol (SOA) especially in the oceanic region. Moreover, nitroaromatic compounds (NAC), as (methyl)nitrocatehols recently reported as potentially toxic constituents of aerosol water soluble organic matter (WSOM) and significant SOA tracers, have not been studied over marine atmosphere till now. A range of global exchange processes between the sea and the atmosphere is hindered by the sea surface microlayer (SML) generally enriched in surface active organics which form films and serve both as a sink and a source of marine OA. To better understand the role of surfactant films at the air-sea interface in global biogeochemistry as well as the sources and transport pathways of marine OA and to estimate their importance in global climate, it is necessary to study chemical composition and properties of trace organics, OS and NAC, in both the SML and marine aerosols as an integrated whole. We will present the first attempt to study marine aerosol WSOM as well as the SML collected in the Middle Adriatic with a special emphasis on its total S and OS content as well as on specific NAC. For that purpose a novel methodological approach capable of their quantification as well as determination of their surfactant nature is applied by combining liquid chromatography mass spectrometry, ion chromatography, inductively coupled plasma mass spectrometry, and electrochemistry. The obtained data are correlated with those for dissolved and particulate organic carbon, water soluble anions and cations, chlorophyll a, nutrients, and surfactants.
Izvorni jezik
Engleski
Znanstvena područja
Geologija
Napomena
Rad je financiran i kroz: AERONAR project - Marie Curie FP7-PEOPLE-2011- COFUND NEWFELPRO (European Commission and the Croatian Ministry of Science, Education Sports) and Slovenian Research Agency project (Contract no. P1-0034- 0140)
POVEZANOST RADA
Projekti:
HRZZ-IP-2013-11-1205 - Kruženje sumpora i ugljika u morskom i slatkovodnom okolišu (SPHERE) (Ciglenečki-Jušić, Irena, HRZZ - 2013-11) ( CroRIS)
Ustanove:
Institut "Ruđer Bošković", Zagreb