Zobrazeno 1 - 10
of 72
pro vyhledávání: '"C. D. Cappa"'
Autor:
R. N. Farley, J. E. Lee, L.-H. Rivellini, A. K. Y. Lee, R. Dal Porto, C. D. Cappa, K. Gorkowski, A. S. M. Shawon, K. B. Benedict, A. C. Aiken, M. K. Dubey, Q. Zhang
Publikováno v:
Atmospheric Chemistry and Physics, Vol 24, Pp 3953-3971 (2024)
A high-resolution soot particle aerosol mass spectrometer (SP-AMS) was used to selectively measure refractory black carbon (rBC) and its associated coating material using both the ensemble size-resolved mass spectral mode and the event trigger single
Externí odkaz:
https://doaj.org/article/db08fe672fa845b0a1218496ac5be3de
Autor:
R. N. Farley, S. Collier, C. D. Cappa, L. R. Williams, T. B. Onasch, L. M. Russell, H. Kim, Q. Zhang
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 15039-15056 (2023)
The impacts of soot particles on climate and human health depend on the concentration of black carbon (BC) as well as the thickness and composition of the coating material, i.e., organic and inorganic compounds internally mixed with BC. In this study
Externí odkaz:
https://doaj.org/article/9063735d5735405e858a026d7b4e9bc2
Autor:
K. J. Nihill, M. M. Coggon, C. Y. Lim, A. R. Koss, B. Yuan, J. E. Krechmer, K. Sekimoto, J. L. Jimenez, J. de Gouw, C. D. Cappa, C. L. Heald, C. Warneke, J. H. Kroll
Publikováno v:
Atmospheric Chemistry and Physics, Vol 23, Pp 7887-7899 (2023)
Biomass burning (BB) is a major source of reactive organic carbon into the atmosphere. Once in the atmosphere, these organic BB emissions, in both the gas and particle phases, are subject to atmospheric oxidation, though the nature and impact of the
Externí odkaz:
https://doaj.org/article/5f659e32812b48c48fe8138823ab224e
Autor:
D. B. Kilgour, G. A. Novak, J. S. Sauer, A. N. Moore, J. Dinasquet, S. Amiri, E. B. Franklin, K. Mayer, M. Winter, C. K. Morris, T. Price, F. Malfatti, D. R. Crocker, C. Lee, C. D. Cappa, A. H. Goldstein, K. A. Prather, T. H. Bertram
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 1601-1613 (2022)
The oxidation of dimethyl sulfide (DMS; CH3SCH3), emitted from the surface ocean, contributes to the formation of Aitken mode particles and their growth to cloud condensation nuclei (CCN) sizes in remote marine environments. It is not clear whether o
Externí odkaz:
https://doaj.org/article/8ff3ce5416b34d3e910034f3e3456ac5
Autor:
C. D. Cappa, C. Y. Lim, D. H. Hagan, M. Coggon, A. Koss, K. Sekimoto, J. de Gouw, T. B. Onasch, C. Warneke, J. H. Kroll
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 8511-8532 (2020)
Particles in smoke emitted from biomass combustion have a large impact on global climate and urban air quality. There is limited understanding of how particle optical properties – especially the contributions of black carbon (BC) and brown carbon (
Externí odkaz:
https://doaj.org/article/2e1965a43a0d43bb8c10459c5b39ba18
Autor:
Z. Li, E. L. D'Ambro, S. Schobesberger, C. J. Gaston, F. D. Lopez-Hilfiker, J. Liu, J. E. Shilling, J. A. Thornton, C. D. Cappa
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 2489-2512 (2020)
One of the challenges of understanding atmospheric organic aerosol (OA) particles stems from its complex composition. Mass spectrometry is commonly used to characterize the compositional variability of OA. Clustering of a mass spectral dataset helps
Externí odkaz:
https://doaj.org/article/36791a1caef64efa8b71b5b8c0dd3367
Publikováno v:
Atmospheric Chemistry and Physics, Vol 20, Pp 1531-1547 (2020)
Relationships between various optical, physical, and chemical properties of biomass-combustion-derived particles are characterized for particles produced in the laboratory from a wide range of fuels and burn conditions. The modified combustion effici
Externí odkaz:
https://doaj.org/article/7b8a91113d7046058ab2b918a6f3d2b3
Autor:
C. Y. Lim, D. H. Hagan, M. M. Coggon, A. R. Koss, K. Sekimoto, J. de Gouw, C. Warneke, C. D. Cappa, J. H. Kroll
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 12797-12809 (2019)
Biomass burning is an important source of aerosol and trace gases to the atmosphere, but how these emissions change chemically during their lifetimes is not fully understood. As part of the Fire Influence on Regional and Global Environments Experimen
Externí odkaz:
https://doaj.org/article/cf3b6e43f1f44242b5639d5ac470db34
Autor:
E. L. D'Ambro, S. Schobesberger, C. J. Gaston, F. D. Lopez-Hilfiker, B. H. Lee, J. Liu, A. Zelenyuk, D. Bell, C. D. Cappa, T. Helgestad, Z. Li, A. Guenther, J. Wang, M. Wise, R. Caylor, J. D. Surratt, T. Riedel, N. Hyttinen, V.-T. Salo, G. Hasan, T. Kurtén, J. E. Shilling, J. A. Thornton
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 11253-11265 (2019)
We present measurements utilizing the Filter Inlet for Gases and Aerosols (FIGAERO) applied to chamber measurements of isoprene-derived epoxydiol (IEPOX) reactive uptake to aqueous acidic particles and associated secondary organic aerosol (SOA) forma
Externí odkaz:
https://doaj.org/article/67c691d7978f4271ac4aeb2e33456faa
Autor:
I. E. Nielsen, H. Skov, A. Massling, A. C. Eriksson, M. Dall'Osto, H. Junninen, N. Sarnela, R. Lange, S. Collier, Q. Zhang, C. D. Cappa, J. K. Nøjgaard
Publikováno v:
Atmospheric Chemistry and Physics, Vol 19, Pp 10239-10256 (2019)
There are limited measurements of the chemical composition, abundance and sources of atmospheric particles in the High Arctic To address this, we report 93 d of soot particle aerosol mass spectrometer (SP-AMS) data collected from 20 February to 23
Externí odkaz:
https://doaj.org/article/512afddac6324821b388f56b6bca8d22