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. 2019 Mar 5;2:90. doi: 10.1038/s42003-019-0332-7

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© The Author(s) 2019

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 1 — Combustion aerosol sampling from a jet turbine engine and characterization of collected particles. a Schematic of experimental setup. The Nano-Aerosol Chamber for In vitro Toxicity (NACIVT) chamber is connected to the diluted particulate matter (PM) sample line in the instrumentation room. APC = AVL Particle Counter Advanced (non-volatile particle number concentration); MSS = AVL micro soot sensor (black carbon mass concentration); SMPS = scanning mobility particle sizer, TSI Model 3938 (particle size distribution). b Particle mass concentration for Jet A-1 and HEFA blend. c Particle number concentration for Jet A-1 and HEFA blend. d Particle size distribution for Jet A-1 and HEFA blend. b, c Data are presented as box plots, where whiskers represent the 2.5 and the 97.5 percentile. Mean values are indicated with “+”