A survey of jet aircraft PM by TEM in APEX III. (September 2016)

• Record Type: Journal Article
• Authors: Huang, Chung-Hsuan; Bryg, Victoria M.; Vander Wal, Randy L.
• Is Part Of: Atmospheric environment. Volume 140(2016)
• Page Start: 614
• Page End: 622
• Publication Date: 2016-09
• Subjects: Soot -- Nanostructure -- APEX III -- Aggregate morphology -- Microstructure -- HRTEM; NASA national aeronautics and space administration -- TEM transmission electron microscopy; Air -- Pollution -- Periodicals; Air -- Pollution -- Meteorological aspects -- Periodicals; 551.51
• DOI: 10.1016/j.atmosenv.2016.06.017
• Languages: English
• ISSNs: 1352-2310

Abstract

Abstract: Results are reported for sampling non-volatile particulate matter from field tests during the NASA led APEX III campaign. This paper reports observations of particulate emissions collected from a suite of jet engine aircraft to assess differences and similarities in soot macro- micro- and nanostructure using TEM. Aggregates are compact, primary particle sizes varied and nanostructure is mixed. Comparisons are made to soot from a laboratory flame as a well-studied reference. Results are interpreted in terms of turbulence interacting with the different stages of particle formation and growth with implications for atmospheric processing and climate impact. Graphical abstract: Highlights: Visualization of jet engine soot by high-resolution electron microscopy (HRTEM). Comparative geometric descriptors of soot morphology. Physical structure of jet soot for improved health and climate impact assessments.