Performance evaluation of four cascade impactors for airborne ultrafine-particle (UFP) collection: the influence of particle type, concentration, mass,  and chemical nature

Eckenberger, Elisabeth; Mittereder, Andreas; Gawlitta, Nadine; Schnelle-Kreis, Jürgen; Sklorz, Martin; Brüggemann, Dieter; Zimmermann, Ralf; Nölscher, Anke C.

doi:10.5194/ar-3-45-2025

Articles | Volume 3, issue 1

https://doi.org/10.5194/ar-3-45-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/ar-3-45-2025

© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 3, issue 1

Research article

|

27 Jan 2025

Research article |

| 27 Jan 2025

Performance evaluation of four cascade impactors for airborne ultrafine-particle (UFP) collection: the influence of particle type, concentration, mass, and chemical nature

Elisabeth Eckenberger, Andreas Mittereder, Nadine Gawlitta, Jürgen Schnelle-Kreis, Martin Sklorz, Dieter Brüggemann, Ralf Zimmermann, and Anke C. Nölscher

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Sep 2024	78	15	4	97
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Nov 2024	42	18	4	64
Dec 2024	15	4	0	19
Jan 2025	73	20	8	101
Feb 2025	95	28	10	133
Mar 2025	110	22	1	133
Apr 2025	61	19	19	99
May 2025	47	9	49	105
Jun 2025	68	27	13	108
Jul 2025	55	23	1	79
Aug 2025	75	20	0	95
Sep 2025	78	20	3	101
Oct 2025	86	46	4	136
Nov 2025	138	53	3	194
Dec 2025	110	40	12	162
Jan 2026	142	89	20	251
Feb 2026	166	99	14	279
Mar 2026	106	26	8	140
Apr 2026	134	57	8	199
May 2026	289	61	15	365
Jun 2026	8	5	0	13

Cumulative views and downloads (calculated since 09 Aug 2024)

Month	HTML	PDF	XML	Total
Aug 2024	91	21	5	117
Sep 2024	78	15	4	97
Oct 2024	62	15	3	80
Nov 2024	42	18	4	64
Dec 2024	15	4	0	19
Jan 2025	73	20	8	101
Feb 2025	95	28	10	133
Mar 2025	110	22	1	133
Apr 2025	61	19	19	99
May 2025	47	9	49	105
Jun 2025	68	27	13	108
Jul 2025	55	23	1	79
Aug 2025	75	20	0	95
Sep 2025	78	20	3	101
Oct 2025	86	46	4	136
Nov 2025	138	53	3	194
Dec 2025	110	40	12	162
Jan 2026	142	89	20	251
Feb 2026	166	99	14	279
Mar 2026	106	26	8	140
Apr 2026	134	57	8	199
May 2026	289	61	15	365
Jun 2026	8	5	0	13

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We assessed the performance of four cascade impactors for collecting and analyzing organic markers in airborne ultrafine particles (UFPs) under lab and field conditions. The cutoff was influenced by the impactor design and aerosol mixture. Two key factors caused variations in mass concentrations: the evaporation of semi-volatile compounds and the "bounce-off" of larger particles and fragments. Our findings reveal the challenges of analyzing organic marker mass concentrations in airborne UFPs.