aeth > AethalometerInstrument Type(s) > Baseline • External • Guest

The aethalometer provides a real-time readout of the concentration of “black” or “elemental” carbon aerosol particles (BC or E) in an air stream. It measures the rate of change of optical transmission through a spot on a filter where aerosol is continuously collected and calculates the concentration of optically absorbing material in the sample. With a built-in reference check of the optical source and a mass flowmeter to monitor air flow rate, the aethalometer calculates the mean BC content of the sampled air stream and provides on-the-spot readout.



  • Fixed
  • AMF1
  • AMF2
  • AMF3

Active Instrument Locations

Facility Name Instrument Start Date
U. of Helsinki Research Station (SMEAR II), Hyytiala, Finland; AOS 2019-06-27
Manacapuru, Amazonas, Brazil; MAOS 2014-01-21


Collaud Coen M, E Andrews, A Alastuey, T Arsov, J Backman, B Brem, N Bukowiecki, C Couret, K Eleftheriadis, H Flentje, M Fiebig, M Gysel-Beer, J Hand, A Hoffer, R Hooda, C Hueglin, W Joubert, M Keywood, J Kim, S Kim, C Labuschagne, N Lin, Y Lin, C Lund Myhre, K Luoma, H Lyamani, A Marinoni, O Mayol-Bracero, N Mihalopoulos, M Pandolfi, N Prats, A Prenni, J Putaud, L Ries, F Reisen, K Sellegri, S Sharma, P Sheridan, J Sherman, J Sun, G Titos, E Torres, T Tuch, R Weller, A Wiedensohler, P Zieger, and P Laj. 2020. "Multidecadal trend analysis of in situ aerosol radiative properties around the world." Atmospheric Chemistry and Physics, 20(14), 10.5194/acp-20-8867-2020.

Laing J, D Jaffe, and A Sedlacek, III. 2020. "Comparison of Filter-based Absorption Measurements of Biomass Burning Aerosol and Background Aerosol at the Mt. Bachelor Observatory." Aerosol and Air Quality Research, 20(4), 10.4209/aaqr.2019.06.0298.


Bhandari J, S China, K Chandrakar, G Kinney, W Cantrell, R Shaw, L Mazzoleni, G Girotto, N Sharma, K Gorkowski, S Gilardoni, S Decesari, M Facchini, N Zanca, G Pavese, F Esposito, M Dubey, A Aiken, R Chakrabarty, H Moosmüller, T Onasch, R Zaveri, B Scarnato, P Fialho, and C Mazzoleni. 2019. "Extensive Soot Compaction by Cloud Processing from Laboratory and Field Observations." Scientific Reports, 9(1), 11824, 10.1038/s41598-019-48143-y.
Research Highlight

de Sá S, L Rizzo, B Palm, P Campuzano-Jost, D Day, L Yee, R Wernis, G Isaacman-VanWertz, J Brito, S Carbone, Y Liu, A Sedlacek, S Springston, A Goldstein, H Barbosa, M Alexander, P Artaxo, J Jimenez, and S Martin. 2019. "Contributions of biomass-burning, urban, and biogenic emissions to the concentrations and light-absorbing properties of particulate matter in central Amazonia during the dry season." Atmospheric Chemistry and Physics, 19(12), 10.5194/acp-19-7973-2019.

Riemer N, A Ault, M West, R Craig, and J Curtis. 2019. "Aerosol Mixing State: Measurements, Modeling, and Impacts." Reviews of Geophysics, 57, 10.1029/2018RG000615.
Research Highlight

Ahern A, E Robinson, D Tkacik, R Saleh, L Hatch, K Barsanti, C Stockwell, R Yokelson, A Presto, A Robinson, R Sullivan, and N Donahue. 2019. "Production of Secondary Organic Aerosol during Aging of Biomass Burning Smoke from Fresh Fuels and its Relationship to VOC Precursors." Journal of Geophysical Research: Atmospheres, 124(6), 10.1029/2018JD029068.


Cirino G, J Brito, H Barbosa, L Rizzo, P Tunved, S de Sá, J Jimenez, B Palm, S Carbone, J Lavric, R Souza, S Wolff, D Walter, J Tota, M Oliveira, S Martin, and P Artaxo. 2018. "Observations of Manaus urban plume evolution and interaction with biogenic emissions in GoAmazon 2014/5." Atmospheric Environment, 191, 10.1016/j.atmosenv.2018.08.031.

Lacher L, P DeMott, E Levin, K Suski, Y Boose, A Zipori, E Herrmann, N Bukowiecki, M Steinbacher, E Gute, J Abbatt, U Lohmann, and Z Kanji. 2018. "Background Free-Tropospheric Ice Nucleating Particle Concentrations at Mixed-Phase Cloud Conditions." Journal of Geophysical Research: Atmospheres, 123(18), 10.1029/2018JD028338.

de Sá S, B Palm, P Campuzano-Jost, D Day, W Hu, G Isaacman-VanWertz, L Yee, J Brito, S Carbone, I Ribeiro, G Cirino, Y Liu, R Thalman, A Sedlacek, A Funk, C Schumacher, J Shilling, J Schneider, P Artaxo, A Goldstein, R Souza, J Wang, K McKinney, H Barbosa, M Alexander, J Jimenez, and S Martin. 2018. "Urban influence on the concentration and composition of submicron particulate matter in central Amazonia." Atmospheric Chemistry and Physics, 18(16), 10.5194/acp-18-12185-2018.

Zuidema P, M Alvarado, C Chiu, S DeSzoeke, C Fairall, G Feingold, A Freedman, S Ghan, J Haywood, P Kollias, E Lewis, G McFarquhar, A McComiskey, D Mechem, T Onasch, J Redemann, D Romps, D Turner, H Wang, R Wood, S Yuter, and P Zhu. 2018. Layered Atlantic Smoke Interactions with Clouds (LASIC) Field Campaign Report. Ed. by Robert Stafford, ARM Climate Research Facility. DOE/SC-ARM-18-018.

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