i
Unexpectedly acidic nanoparticles formed in dimethylamine-ammonia-sulfuric-acid nucleation experiments at CLOUD
-
2016
Source: Atmospheric Chemistry and Physics, 16(21), 13601-13618.
Details:
-
Journal Title:Atmospheric Chemistry and Physics
-
Personal Author:Lawler, M. J. ; Winkler, P. M. ; Kim, J. ; Ahlm, L. ; Trostl, J. ; Praplan, A. P. ; Schobesberger, S. ; Kurten, A. ; Kirkby, J. ; Bianchi, F. ; Duplissy, J. ; Hansel, A. ; Jokinen, T. ; Keskinen, H. ; Lehtipalo, K. ; Leiminger, M. ; Petaja, T. ; Rissanen, M. ; Rondo, L. ; Simon, M. ; Sipila, M. ; Williamson, C. ; Wimmer, D. ; Riipinen, I. ; Virtanen, A. ; Smith, J. N. ; Less -
-
NOAA Program & Office:
-
Description:New particle formation driven by acid-base chemistry was initiated in the CLOUD chamber at CERN by introducing atmospherically relevant levels of gas-phase sulfuric acid and dimethylamine (DMA). Ammonia was also present in the chamber as a gas-phase contaminant from earlier experiments. The composition of particles with volume median diameters (VMDs) as small as 10 nm was measured by the Thermal Desorption Chemical Ionization Mass Spectrometer (TDCIMS). Particulate ammonium-to-dimethylaminium ratios were higher than the gas-phase ammonia-to-DMA ratios, suggesting preferential uptake of ammonia over DMA for the collected 10-30 nm VMD particles. This behavior is not consistent with present nanoparticle physicochemical models, which predict a higher dimethylaminium fraction when NH3 and DMA are present at similar gas-phase concentrations. Despite the presence in the gas phase of at least 100 times higher base concentrations than sulfuric acid, the recently formed particles always had measured base : acid ratios lower than 1 : 1. The lowest base fractions were found in particles below 15 nm VMD, with a strong size-dependent composition gradient. The reasons for the very acidic composition remain uncertain, but a plausible explanation is that the particles did not reach thermodynamic equilibrium with respect to the bases due to rapid heterogeneous conversion of SO2 to sulfate. These results indicate that sulfuric acid does not require stabilization by ammonium or dimethylaminium as acid-base pairs in particles as small as 10 nm.
-
Source:Atmospheric Chemistry and Physics, 16(21), 13601-13618.
-
Document Type:
-
Rights Information:CC BY
-
Compliance:Submitted
-
Main Document Checksum:urn:sha256:764bc514f012a562566044376f9793126cfad6415afcc76ae37ad56ec8cf9e93
-
File Type:
Supporting Files
-
No Additional Files
More +
Related Documents
-
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
- File Format:
- RIS
Building evidence around ghost gear: Global trends and analysis for sustainable solutions at scaleCitePersonal Author:Richardson, K. ; Asmutis-Silvia, R. ; ...2019 | Marine Pollution Bulletin, 138, 222-229.Description:Abandoned, lost or discarded fishing gear (ALDFG) comprises a significant amount of global marine debris, with diverse impacts to marine environments,...The role of scientific expertise in local adaptation to projected sea level riseCitePersonal Author:Hayes, A. L. ; Heery, E. C. ; ...2018 | Environmental Science & Policy, 87, 55-63.Description:Adaptation to sea level rise (SLR) is primarily taking place at the local level, with varied governments grappling with the diverse ways that SLR will...A case study comparing citizen science aurora data with global auroral boundaries derived from satellite imagery and empirical modelsCitePersonal Author:Kosar, B. C. ; MacDonald, E. A. ; ...2018 | Journal of Atmospheric and Solar-Terrestrial Physics, 177, 274-282.Description:Aurorasaurus is a citizen science project that offers a new, global data source consisting of ground-based reports of the aurora. For this case study,...Brown carbon aerosol in the North American continental troposphere: sources, abundance, and radiative forcingCitePersonal Author:Liu, J. ; Scheuer, E. ; ...2015 | Atmospheric Chemistry and Physics, 15(14), 7841-7858.Description:Chemical components of organic aerosol (OA) selectively absorb light at short wavelengths. In this study, the prevalence, sources, and optical importa...Utilizing the Drake Passage Time-series to understand variability and change in subpolar Southern Ocean pCO(2)CitePersonal Author:Fay, A. R. ; Lovenduski, N. S. ; ...2018 | Biogeosciences, 15(12), 3841-3855.Description:The Southern Ocean is highly under-sampled for the purpose of assessing total carbon uptake and its variability. Since this region dominates the mean ...Estimating Source Region Influences on Black Carbon Abundance, Microphysics, and Radiative Effect Observed Over South KoreaCitePersonal Author:Lamb, K. D. ; Perring, A. E. ; ...2018 | Journal of Geophysical Research-Atmospheres, 123(23), 13527-13548.Description:East Asia is the strongest global source region for anthropogenic black carbon (BC), the most important light-absorbing aerosol contributing to direct...Estimating regional-scale methane flux and budgets using CARVE aircraft measurements over AlaskaCitePersonal Author:Hartery, S. ; Commane, R. ; ...2018 | Atmospheric Chemistry and Physics, 18(1), 185-202.Description:Methane (CH4) is the second most important greenhouse gas but its emissions from northern regions are still poorly constrained. In this study, we anal...On the reversibility of transitions between closed and open cellular convectionCitePersonal Author:Feingold, G. ; Koren, I. ; ...2015 | Atmospheric Chemistry and Physics, 15(13), 7351-7367.Description:The two-way transition between closed and open cellular convection is addressed in an idealized cloud-resolving modeling framework. A series of cloud-...Measurements of light-absorbing particles on the glaciers in the Cordillera Blanca, PeruCitePersonal Author:Schmitt, C. G. ; All, J. D. ; ...2015 | Cryosphere, 9(1), 331-340.Description:Glaciers in the tropical Andes have been rapidly losing mass since the 1970s. In addition to the documented increase in temperature, increases in ligh...Personal Author:Chang, W. L. ; Brown, S. S. ; ...2016 | Journal of Geophysical Research-Atmospheres, 121(9), 5051-5070.Description:Nighttime chemistry in the troposphere is closely tied to the dinitrogen pentoxide (N2O5) budget, but high uncertainties remain regarding the model re...Links Between Carbon Monoxide and Climate Indices for the Southern Hemisphere and Tropical Fire RegionsCitePersonal Author:Buchholz, R. R. ; Hammerling, D. ; ...2018 | Journal of Geophysical Research-Atmospheres, 123(17), 9786-9800.Description:In the Southern Hemisphere and tropics, the main contribution to carbon monoxide (CO) variability is from fire emissions, which are connected to clima...Characterization of organic residues of size-resolved fog droplets and their atmospheric implicationsCitePersonal Author:Chakraborty, A. ; Ervens, B. ; ...2016 | Journal of Geophysical Research-Atmospheres, 121(8), 4317-4332.Description:Size-resolved fog water samples were collected in two consecutive winters at Kanpur, a heavily polluted urban area of India. Samples were analyzed by ...Characterization of cumulus cloud fields using trajectories in the center of gravity versus water mass phase space: 1. Cloud tracking and phase space descriptionCitePersonal Author:Heiblum, R. H. ; Altaratz, O. ; ...2016 | Journal of Geophysical Research-Atmospheres, 121(11), 6336-6355.Description:We study the evolution of warm convective cloud fields using large eddy simulations of continental and trade cumulus. Individual clouds are tracked a ...In situ vertical profiles of aerosol extinction, mass, and composition over the southeast United States during SENEX and SEAC(4)RS: observations of a modest aerosol enhancement aloftCitePersonal Author:Wagner, N. L. ; Brock, C. A. ; ...2015 | Atmospheric Chemistry and Physics, 15(12), 7085-7102.Description:Vertical profiles of submicron aerosol from in situ aircraft-based measurements were used to construct aggregate profiles of chemical, microphysical, ...Photochemical aging of volatile organic compounds associated with oil and natural gas extraction in the Uintah Basin, UT, during a wintertime ozone formation eventCitePersonal Author:Koss, A. R. ; de Gouw, J. ; ...2015 | Atmospheric Chemistry and Physics, 15(10), 5727-5741.Description:High concentrations of volatile organic compounds (VOCs) associated with oil and natural gas extraction were measured during a strong temperature inve...A two-channel, tunable diode laser-based hygrometer for measurement of water vapor and cirrus cloud ice water content in the upper troposphere and lower stratosphereCitePersonal Author:Thornberry, T. D. ; Rollins, A. W. ; ...2015 | Atmospheric Measurement Techniques, 8(1), 211-224.Description:The recently developed NOAA Water instrument is a two-channel, closed-path, tunable diode laser absorption spectrometer designed for the measurement o...PTR-QMS versus PTR-TOF comparison in a region with oil and natural gas extraction industry in the Uintah Basin in 2013CitePersonal Author:Warneke, C. ; Veres, P. ; ...2015 | Atmospheric Measurement Techniques, 8(1), 411-420.Description:Here we compare volatile organic compound (VOC) measurements using a standard proton-transfer-reaction quadrupole mass spectrometer (PTR-QMS) with a n...Validation of TES ammonia observations at the single pixel scale in the San Joaquin Valley during DISCOVER-AQCitePersonal Author:Sun, K. ; Cady-Pereira, K. ; ...2015 | Journal of Geophysical Research-Atmospheres, 120(10), 5140-5154.Description:Ammonia measurements from a vehicle-based, mobile open-path sensor and those from aircraft were compared with Tropospheric Emission Spectrometer (TES)...Peroxynitric acid (HO2NO2) measurements during the UBWOS 2013 and 2014 studies using iodide ion chemical ionization mass spectrometryCitePersonal Author:Veres, P. R. ; Roberts, J. M. ; ...2015 | Atmospheric Chemistry and Physics, 15(14), 8101-8114.Description:In this paper laboratory work is documented establishing iodide ion chemical ionization mass spectrometry (I- CIMS) as a sensitive method for the unam...Contrasting the Antarctic and Arctic Atmospheric Responses to Projected Sea Ice Loss in the Late Twenty-First CenturyCitePersonal Author:England, M. ; Polvani, L. ; ...2018 | Journal of Climate, 31(16), 6353-6370.Description:Models project that Antarctic sea ice area will decline considerably by the end of this century, but the consequences remain largely unexplored. Here,...
More +
You May Also Like
- File Format:
- RIS
The effect of acid-base clustering and ions on the growth of atmospheric nano-particles
Cite
Personal Author:
Lehtipalo, K. ; Rondo, L. ; ...
2016 | Nature Communications, 7, 11594.
Description:
The growth of freshly formed aerosol particles can be the bottleneck in their survival to cloud condensation nuclei. It is therefore crucial to unders...