Nitrogenated and aliphatic organic vapors as possible drivers for marine secondary organic aerosol growth

Dall’Osto, Manuel; Čeburnis, Darius; Monahan, Ciaran; Worsnop, Douglas R.; Białek, Jakub; Kulmala, Markku; Kurtén, Theo; Ehn, Mikael; Wenger, John C.; Sodeau, John R.; Healy, Robert M.; O’Dowd, Colin

doi:10.1029/2012jd017522

Cited by 55 publications

(57 citation statements)

References 74 publications

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“…2013b), local coffee roastery (Carbone et al, 2013), and local primary (industry) emissions (Aiken et al, 2009). In MBL, gaseous amines emitted by marine phytoplankton have been recognized as an important SOA source (Dall'Osto et al, 2012;Facchini et al, 2008;Jickells et al, 2013;Müller et al, 2009). This is because low molecular weight aliphatic amines such as methylamine (CH5N), dimethylamine (C2H7N) and trimethylamine (C3H9N) can be excreted by marine organisms as products of metabolic processes (Ge et al, 2011;Wang and Lee, 1994).…”

Section: Nitrogen-containing Organic Aerosol (Noa)mentioning

confidence: 99%

Source apportionment of the submicron organic aerosols over the Atlantic Ocean from 53° N to 53° S using HR-ToF-AMS

Huang

Poulain

et al. 2018

Preprint

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PM1 filter samples with a sampling time of 24 hours. Our measurements show that the MBL aerosol particle mass is controlled by sulfate (50%), followed by organics (21%), sea salt (12%), ammonium (9%), Black Carbon (BC, 5%) and nitrate (3%). Only sulfate exhibits pronouncedly seasonal dependency, while no such trend was observed in other species.Source apportionment of the organic fraction was performed using Positive Matrix Factorization (PMF). Five factors were 20 identified, including three marine sources and two non-marine sources. Marine sources are linked to primary production (19% of total organic aerosol (OA) mass), marine dimethylsulfide (DMS)-oxidation (16%), and amine-related secondary formation (16%). The other two OA components are attributed to continental outflow (19%) and aged ship exhausts -biomass burning emissions (30%). Our study indicates that, on average, non-marine sources nearly have the equal importance to the Atlantic aerosols comparing with the marine sources, respectively contributing 49% and 51% to the total OA mass loadings. The 25 South Atlantic atmosphere is found to be less polluted than the North according to our source analysis. Detailed latitudinal distribution of OA sources showed that DMS oxidation contributes remarkably to the MBL aerosol over the South Atlantic during spring, while continental pollutants largely contaminate the marine atmosphere when near the west and middle Africa (15°N~15°S) as well as Europe. Based on our measurements, SOA produced from DMS oxidation over the Atlantic can be estimated as MSA mass concentration times a scaling factor 1.79 for spring season, which is derived from the strong 30 correlation (R 2 >0.85) between MSA and DMS-oxidation OA component.Atmos. Chem. Phys. Discuss., https://doi

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Section: Nitrogen-containing Organic Aerosol (Noa)mentioning

confidence: 99%

Source apportionment of the submicron organic aerosols over the Atlantic Ocean from 53° N to 53° S using HR-ToF-AMS

Huang

Poulain

et al. 2018

Preprint

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“…Recent work has posited the importance of methanesulfonic acid (CH 3 SO 2 OH; MSA) in nucleation and condensational growth processes, particularly in the marine environment (Bzdek et al, 2011;Dall'Osto et al, 2012;Dawson et al, 2012;Bork et al, 2014). A simplified inclusion of MSA into TOMAS was performed such that MSA produced from DMS oxidation was identified as H 2 SO 4 in the model, and added to the condensing H 2 SO 4 reservoir, essentially increasing the nucleation and condensational growth rates.…”

Section: Box Modellingmentioning

confidence: 99%

Boundary layer new particle formation over East Antarctic sea ice – possible Hg-driven nucleation?

et al. 2015

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Abstract. Aerosol observations above the Southern Ocean and Antarctic sea ice are scarce. Measurements of aerosols and atmospheric composition were made in East Antarctic pack ice on board the Australian icebreaker Aurora Australis during the spring of 2012. One particle formation event was observed during the 32 days of observations. This event occurred on the only day to exhibit extended periods of global irradiance in excess of 600 W m −2 . Within the single air mass influencing the measurements, number concentrations of particles larger than 3 nm (CN 3 ) reached almost 7700 cm −3 within a few hours of clouds clearing, and grew at rates of 5.6 nm h −1 . Formation rates of 3 nm particles were in the range of those measured at other Antarctic locations at 0.2-1.1 ± 0.1 cm −3 s −1 . Our investigations into the nucleation chemistry found that there were insufficient precursor concentrations for known halogen or organic chemistry to explain the nucleation event. Modelling studies utilising known sulfuric acid nucleation schemes could not simultaneously reproduce both particle formation or growth rates. Surprising correlations with total gaseous mercury (TGM) were found that, together with other data, suggest a mercurydriven photochemical nucleation mechanism may be responsible for aerosol nucleation. Given the very low vapour pressures of the mercury species involved, this nucleation chemistry is likely only possible where pre-existing aerosol concentrations are low and both TGM concentrations and solar radiation levels are relatively high (∼ 1.5 ng m −3 and ≥ 600 W m −2 , respectively), such as those observed in the Antarctic sea ice boundary layer in this study or in the global free troposphere, particularly in the Northern Hemisphere.

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“…Scalabrin et al (2012) reported marine influence on amino acids in Arctic aerosol. Further particle measurements at Mace Head, Ireland, have shown the presence of organic compounds, such as amines, in aerosol that originated in polar marine air masses (Dall'Osto et al, 2012). Gunsch et al (2017, Supplement) briefly mentioned the detection of particulate TMA at a coastal Alaskan site in summer.…”

Section: Introductionmentioning

confidence: 99%

Particulate trimethylamine in the summertime Canadian high Arctic lower troposphere

et al. 2017

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Abstract. Size-resolved and vertical profile measurements of single particle chemical composition (sampling altitude range 50-3000 m) were conducted in July 2014 in the Canadian high Arctic during an aircraft-based measurement campaign (NETCARE 2014). We deployed the single particle laser ablation aerosol mass spectrometer ALABAMA (vacuum aerodynamic diameter range approximately 200-1000 nm) to identify different particle types and their mixing states. On the basis of the single particle analysis, we found that a significant fraction (23 %) of all analyzed particles (in total: 7412) contained trimethylamine (TMA). Two main pieces of evidence suggest that these TMA-containing particles originated from emissions within the Arctic boundary layer. First, the maximum fraction of particulate TMA occurred in the Arctic boundary layer. Second, compared to particles observed aloft, TMA particles were smaller and less oxidized. Further, air mass history analysis, associated wind data and comparison with measurements of methanesulfonic acid give evidence of a marine-biogenic influence on particulate TMA. Moreover, the external mixture of TMAcontaining particles and sodium and chloride ("Na / Cl-") containing particles, together with low wind speeds, suggests particulate TMA results from secondary conversion of precursor gases released by the ocean. In contrast to TMAcontaining particles originating from inner-Arctic sources, particles with biomass burning markers (such as levoglucosan and potassium) showed a higher fraction at higher altitudes, indicating long-range transport as their source. Our measurements highlight the importance of natural, marine inner-Arctic sources for composition and growth of summertime Arctic aerosol.

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Nitrogenated and aliphatic organic vapors as possible drivers for marine secondary organic aerosol growth

Cited by 55 publications

References 74 publications

Source apportionment of the submicron organic aerosols over the Atlantic Ocean from 53° N to 53° S using HR-ToF-AMS

Source apportionment of the submicron organic aerosols over the Atlantic Ocean from 53° N to 53° S using HR-ToF-AMS

Boundary layer new particle formation over East Antarctic sea ice – possible Hg-driven nucleation?

Particulate trimethylamine in the summertime Canadian high Arctic lower troposphere

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