Limited impact of sulfate-driven chemistry on black carbon aerosol aging in power plant plumes
The aging of refractory black carbon (rBC) aerosol by sulfate-driven chemistry has been constrained in coal-fired power-plant plumes using the NOAA WP-3D research aircraft during the Southern Nexus (SENEX) study, which took place in the Southeastern US in June and July of 2013. A Single Particle Soo...
| Main Authors: | , , , , , , , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
AIMS Press
2018-06-01
|
| Series: | AIMS Environmental Science |
| Subjects: | |
| Online Access: | http://www.aimspress.com/environmental/article/2078/fulltext.html |
| _version_ | 1828400724142194688 |
|---|---|
| author | Milos Z. Markovic Anne E. Perring Ru-Shan Gao Jin Liao Andre Welti Nick L. Wagner Ilana B. Pollack Ann M. Middlebrook Thomas B. Ryerson Michael K. Trainer Carsten Warneke Joost A. de Gouw David W. Fahey Philip Stier Joshua P. Schwarz |
| author_facet | Milos Z. Markovic Anne E. Perring Ru-Shan Gao Jin Liao Andre Welti Nick L. Wagner Ilana B. Pollack Ann M. Middlebrook Thomas B. Ryerson Michael K. Trainer Carsten Warneke Joost A. de Gouw David W. Fahey Philip Stier Joshua P. Schwarz |
| author_sort | Milos Z. Markovic |
| collection | DOAJ |
| description | The aging of refractory black carbon (rBC) aerosol by sulfate-driven chemistry has been constrained in coal-fired power-plant plumes using the NOAA WP-3D research aircraft during the Southern Nexus (SENEX) study, which took place in the Southeastern US in June and July of 2013. A Single Particle Soot Photometer (SP2) determined the microphysical properties of rBC-containing particles including single-particle rBC mass and the presence and amount of internally-mixed non-rBC material, hereafter referred to as “coatings”. Most power-plant influenced air was associated with very slightly increased amounts of non-refractory material, likely sulfate internally mixed with the rBC, however this increase was statistically insignificant even after semi-Lagrangian exposure for up to 5 h. On average, the increase in coating thickness was 2 ± 4 nm for particles containing 3–5 fg rBC. Similarly, the number fraction of rBC-containing particles that could be identified as internally mixed was increased by plume chemistry by only 1.3 ± 1.3%. These direct measurements of microphysical aging of rBC-containing aerosol by power plant emissions constrain the enhancement of sulfate chemistry on both rBC’s column-integrated absorption optical depth, and rBC-containing aerosol’s ability to act as cloud condensation nuclei. Appling Mie and <span style="font-size:12.0pt;font-family:Symbol;">k</span>-Köhler theories to the SP2 observations, permits the resulting effect on rBC ambient light-absorption to be capped at the 2–6% level. |
| first_indexed | 2024-12-10T09:36:12Z |
| format | Article |
| id | doaj.art-fa72fdc469a2478eb539f72f1a5ff55e |
| institution | Directory Open Access Journal |
| issn | 2372-0352 |
| language | English |
| last_indexed | 2024-12-10T09:36:12Z |
| publishDate | 2018-06-01 |
| publisher | AIMS Press |
| record_format | Article |
| series | AIMS Environmental Science |
| spelling | doaj.art-fa72fdc469a2478eb539f72f1a5ff55e2022-12-22T01:54:10ZengAIMS PressAIMS Environmental Science2372-03522018-06-015319521510.3934/environsci.2018.3.195environ-05-03-195Limited impact of sulfate-driven chemistry on black carbon aerosol aging in power plant plumesMilos Z. MarkovicAnne E. PerringRu-Shan Gao0Jin LiaoAndre WeltiNick L. WagnerIlana B. PollackAnn M. Middlebrook1Thomas B. Ryerson2Michael K. Trainer3Carsten WarnekeJoost A. de GouwDavid W. FaheyPhilip Stier4Joshua P. Schwarz5<sup>1</sup> Earth System Research Laboratory, Chemical Sciences Division, NOAA, Boulder, Colorado, USA<sup>1</sup> Earth System Research Laboratory, Chemical Sciences Division, NOAA, Boulder, Colorado, USA<sup>1</sup> Earth System Research Laboratory, Chemical Sciences Division, NOAA, Boulder, Colorado, USA<sup>1</sup> Earth System Research Laboratory, Chemical Sciences Division, NOAA, Boulder, Colorado, USA<sup>3</sup> Department of Physics, University of Oxford, Oxford, Oxfordshire, United Kingdom<sup>1</sup> Earth System Research Laboratory, Chemical Sciences Division, NOAA, Boulder, Colorado, USAThe aging of refractory black carbon (rBC) aerosol by sulfate-driven chemistry has been constrained in coal-fired power-plant plumes using the NOAA WP-3D research aircraft during the Southern Nexus (SENEX) study, which took place in the Southeastern US in June and July of 2013. A Single Particle Soot Photometer (SP2) determined the microphysical properties of rBC-containing particles including single-particle rBC mass and the presence and amount of internally-mixed non-rBC material, hereafter referred to as “coatings”. Most power-plant influenced air was associated with very slightly increased amounts of non-refractory material, likely sulfate internally mixed with the rBC, however this increase was statistically insignificant even after semi-Lagrangian exposure for up to 5 h. On average, the increase in coating thickness was 2 ± 4 nm for particles containing 3–5 fg rBC. Similarly, the number fraction of rBC-containing particles that could be identified as internally mixed was increased by plume chemistry by only 1.3 ± 1.3%. These direct measurements of microphysical aging of rBC-containing aerosol by power plant emissions constrain the enhancement of sulfate chemistry on both rBC’s column-integrated absorption optical depth, and rBC-containing aerosol’s ability to act as cloud condensation nuclei. Appling Mie and <span style="font-size:12.0pt;font-family:Symbol;">k</span>-Köhler theories to the SP2 observations, permits the resulting effect on rBC ambient light-absorption to be capped at the 2–6% level.http://www.aimspress.com/environmental/article/2078/fulltext.htmlblack carbon aerosolsulfate chemistryaerosol agingsulfate |
| spellingShingle | Milos Z. Markovic Anne E. Perring Ru-Shan Gao Jin Liao Andre Welti Nick L. Wagner Ilana B. Pollack Ann M. Middlebrook Thomas B. Ryerson Michael K. Trainer Carsten Warneke Joost A. de Gouw David W. Fahey Philip Stier Joshua P. Schwarz Limited impact of sulfate-driven chemistry on black carbon aerosol aging in power plant plumes AIMS Environmental Science black carbon aerosol sulfate chemistry aerosol aging sulfate |
| title | Limited impact of sulfate-driven chemistry on black carbon aerosol aging in power plant plumes |
| title_full | Limited impact of sulfate-driven chemistry on black carbon aerosol aging in power plant plumes |
| title_fullStr | Limited impact of sulfate-driven chemistry on black carbon aerosol aging in power plant plumes |
| title_full_unstemmed | Limited impact of sulfate-driven chemistry on black carbon aerosol aging in power plant plumes |
| title_short | Limited impact of sulfate-driven chemistry on black carbon aerosol aging in power plant plumes |
| title_sort | limited impact of sulfate driven chemistry on black carbon aerosol aging in power plant plumes |
| topic | black carbon aerosol sulfate chemistry aerosol aging sulfate |
| url | http://www.aimspress.com/environmental/article/2078/fulltext.html |
| work_keys_str_mv | AT miloszmarkovic limitedimpactofsulfatedrivenchemistryonblackcarbonaerosolaginginpowerplantplumes AT anneeperring limitedimpactofsulfatedrivenchemistryonblackcarbonaerosolaginginpowerplantplumes AT rushangao limitedimpactofsulfatedrivenchemistryonblackcarbonaerosolaginginpowerplantplumes AT jinliao limitedimpactofsulfatedrivenchemistryonblackcarbonaerosolaginginpowerplantplumes AT andrewelti limitedimpactofsulfatedrivenchemistryonblackcarbonaerosolaginginpowerplantplumes AT nicklwagner limitedimpactofsulfatedrivenchemistryonblackcarbonaerosolaginginpowerplantplumes AT ilanabpollack limitedimpactofsulfatedrivenchemistryonblackcarbonaerosolaginginpowerplantplumes AT annmmiddlebrook limitedimpactofsulfatedrivenchemistryonblackcarbonaerosolaginginpowerplantplumes AT thomasbryerson limitedimpactofsulfatedrivenchemistryonblackcarbonaerosolaginginpowerplantplumes AT michaelktrainer limitedimpactofsulfatedrivenchemistryonblackcarbonaerosolaginginpowerplantplumes AT carstenwarneke limitedimpactofsulfatedrivenchemistryonblackcarbonaerosolaginginpowerplantplumes AT joostadegouw limitedimpactofsulfatedrivenchemistryonblackcarbonaerosolaginginpowerplantplumes AT davidwfahey limitedimpactofsulfatedrivenchemistryonblackcarbonaerosolaginginpowerplantplumes AT philipstier limitedimpactofsulfatedrivenchemistryonblackcarbonaerosolaginginpowerplantplumes AT joshuapschwarz limitedimpactofsulfatedrivenchemistryonblackcarbonaerosolaginginpowerplantplumes |