Publications of Frank Helleis

Hünig, A., Appel, O., Dragoneas, A., Molleker, S., Clemen, H.-C., Helleis, F., Klimach, T., Köllner, F., Böttger, T., Drewnick, F., Schneider, J. and Borrmann, S.: Design, characterization, and first field deployment of a novel aircraft-based aerosol mass spectrometer combining the laser ablation and flash vaporization techniques, Atmospheric Measurement Techniques, 15(9), 2889–2921, doi:10.5194/amt-15-2889-2022, 2022.

McLeod, R. S., Hopfe, C. J., Bodenschatz, E., Moriske, H. J., Pöschl, U., Salthammer, T., Curtius, J., Helleis, F., Niessner, J., Herr, C., Klimach, T., Seipp, M., Steffens, T., Witt, C. and Willich, S. N.: A multi‐layered strategy for COVID‐19 infection prophylaxis in schools: A review of the evidence for masks, distancing, and ventilation, Indoor Air, 32, 1–11, doi:10.1111/ina.13142, 2022.

Köllner, F., Schneider, J., Willis, M. D., Schulz, H., Kunkel, D., Bozem, H., Hoor, P., Klimach, T., Helleis, F., Burkart, J., Leaitch, W. R., Aliabadi, A. A., Abbatt, J. P. D., Herber, A. B. and Borrmann, S.: Chemical composition and source attribution of sub-micrometre aerosol particles in the summertime Arctic lower troposphere, Atmospheric Chemistry and Physics, 21(8), 6509–6539, doi:10.5194/acp-21-6509-2021, 2021.

Clemen, H.-C., Schneider, J., Klimach, T., Helleis, F., Köllner, F., Hünig, A., Rubach, F., Mertes, S., Wex, H., Stratmann, F., Welti, A., Kohl, R., Frank, F. and Borrmann, S.: Optimizing the detection, ablation, and ion extraction efficiency of a single-particle laser ablation mass spectrometer for application in environments with low aerosol particle concentrations, Atmospheric Measurement Techniques, 13(11), 5923–5953, doi:10.5194/amt-13-5923-2020, 2020.

Lelieveld, J., Helleis, F., Borrmann, S., Cheng, Y., Drewnick, F., Haug, G., Klimach, T., Sciare, J., Su, H. and Pöschl, U.: Model Calculations of Aerosol Transmission and Infection Risk of COVID-19 in Indoor Environments, International Journal of Environmental Research and Public Health, 17(21), doi:10.3390/ijerph17218114, 2020.

Molleker, S., Helleis, F., Klimach, T., Appel, O., Clemen, H.-C., Dragoneas, A., Gurk, C., Hünig, A., Köllner, F., Rubach, F., Schulz, C., Schneider, J. and Borrmann, S.: Application of an O-ring pinch device as a constant-pressure inlet (CPI) for airborne sampling, Atmospheric Measurement Techniques, 13(7), 3651–3660, doi:10.5194/amt-13-3651-2020, 2020.

Eger, P. G., Helleis, F., Schuster, G., Phillips, G. J., Lelieveld, J. and Crowley, J. N.: Chemical ionization quadrupole mass spectrometer with an electrical discharge ion source for atmospheric trace gas measurement, Atmospheric Measurement Techniques, 12(3), 1935–1954, doi:10.5194/amt-12-1935-2019, 2019.

Kunert, A., Lamneck, F., Helleis, F., Pöschl, U., Pöhlker, M. L. and Fröhlich-Nowoisky, J.: Twin-plate Ice Nucleation Assay (TINA) with infrared detection for high-throughput droplet freezing experiments with biological ice nuclei in laboratory and field samples, Atmospheric Measurement Techniques, 11(11), 6327–6337, doi:10.5194/amt-11-6327-2018, 2018.

Ribas-Ribas, M., Helleis, F., Rahlff, J. and Wurl, O.: Air-Sea CO₂-Exchange in a Large Annular Wind-Wave Tank and the Effects of Surfactants, Frontiers in marine science, 5, doi:10.3389/fmars.2018.00457, 2018.

Bourtsoukidis, E., Helleis, F., Tomsche, L., Fischer, H., Hofmann, R., Lelieveld, J. and Williams, J.: An aircraft gas chromatograph-mass spectrometer System for Organic Fast Identification Analysis (SOFIA): design, performance and a case study of Asian monsoon pollution outflow, Atmospheric Measurement Techniques, 10(12), 5089–5105, doi:10.5194/amt-10-5089-2017, 2017.

Fachinger, J., Gallavardin, S. J., Helleis, F., Fachinger, F., Drewnick, F. and Borrmann, S.: The ion trap aerosol mass spectrometer: field intercomparison with the ToF-AMS and the capability of differentiating organic compound classes via MS-MS, Atmospheric Measurement Techniques, 10(4), 1623–1637, doi:10.5194/amt-10-1623-2017, 2017.

Köllner, F., Schneider, J., Willis, M. D., Klimach, T., Helleis, F., Bozem, H., Kunkel, D., Hoor, P., Burkart, J., Leaitch, W. R., Aliabadi, A. A., Abbatt, J. P. D., Herber, A. B. and Borrmann, S.: Particulate trimethylamine in the summertime Canadian high Arctic lower troposphere, Atmospheric Chemistry and Physics, 17(22), 13747–13766, doi:10.5194/acp-17-13747-2017, 2017.

Pöschl, U., Cheng, Y., Helleis, F., Klimach, T. and Su, H.: Efficiency and synergy of simple protective measures against COVID-19: Masks, ventilation and more, in EGU General Assembly 2022, Vienna, Austria., 2022.

Lelieveld, J., Helleis, F., Borrmann, S., Cheng, Y., Drewnick, F., Haug, G., Klimach, T., Sciare, J., Su, H. and Pöschl, U.: Model Calculations of Aerosol Transmission and Infection Risk of COVID-19 in Indoor Environments, , doi:10.1101/2020.09.22.20199489 , 2020.

Köllner, F., Schneider, J., Willis, M. D., Schulz, H., Kunkel, D., Bozem, H., Hoor, P., Klimach, T., Helleis, F., Burkart, J., Leaitch, W. R., Alibadi, A. A., Abbatt, J. P. D., Herber, A. B. and Borrmann, S.: Chemical composition and source attribution of submicron aerosol particles in the summertime Arctic lower troposphere, Atmospheric Chemistry and Physics Discussions, 20, doi:10.5194/acp-2020-742, 2020.

Clemen, H.-C., Schneider, J., Klimach, T., Helleis, F., Köllner, F., Hünig, A., Rubach, F., Mertes, S., Wex, H., Stratmann, F., Welti, A., Kohl, R., Frank, F. and Borrmann, S.: Optimizing the detection, ablation, and ion extraction efficiency of a single-particle laser ablation mass spectrometer for application in environments with low aerosol particle concentrations, Atmospheric Measurement Techniques Discussions, 13, doi:10.5194/amt-2020-181, 2020.

Eger, P. G., Helleis, F., Schuster, G., Phillips, G. J., Lelieveld, J. and Crowley, J. N.: Chemical ionisation quadrupole mass spectrometer with an electrical discharge ion source for atmospheric trace gas measurement, Atmospheric Measurement Techniques Discussions, 11, doi:10.5194/amt-2018-428, 2018.

Bourtsoukidis, E., Helleis, F., Tomsche, L., Fischer, H., Hofmann, R., Lelieveld, J. and Williams, J.: An aircraft gas chromatograph-mass spectrometer System for Organic Fast Identification Analysis (SOFIA): design, performance and a case study of Asian monsoon pollution outflow, Atmospheric Measurement Techniques Discussions, 10, doi:10.5194/amt-2017-201, 2017.

Köllner, F., Schneider, J., Willis, M. D., Klimach, T., Helleis, F., Bozem, H., Kunkel, D., Hoor, P., Burkart, J., Leaitch, W. R., Aliabadi, A. A., Abbatt, J. P. D., Herber, B. and Borrmann, S.: Particulate trimethylamine in the summertime Canadian high Arctic lower troposphere, Atmospheric Chemistry and Physics Discussions, 17, doi:10.5194/acp-2017-505, 2017.

Helleis, F., Klimach, T. and Pöschl, U.: Vergleich verschiedener Lüftungsmethoden gegen die Aerosolübertragung von COVID-19 und für erhöhte Luftqualität in Klassenräumen: Fensterlüften, Abluftventilatoren, Raumlufttechnik und Luftreiniger (Version 2.0), , doi:10.5281/zenodo.6049289, 2022.