From: Ultrafine particle levels measured on board short-haul commercial passenger jet aircraft
| Flight | Airbus model | Aircraft’s year of first flight | Engines |
|---|---|---|---|
| 1 | A320neo | 2017 | 2 × CFMI LEAP |
| 2 | A320 | 2014 | 2 × CFMI CFM56 |
| 3 | A319 | 2006 | 2 × IAE |
| 4 | A319 | 2004 | 2 × IAE |