Klimach, T., Helleis, F., McLeod, R. S., Hopfe, C. J. and Pöschl, U.: The Max Planck Institute for Chemistry mechanical extract ventilation (MPIC-MEV) system against aerosol transmission of COVID-19, , doi:10.5281/zenodo.5802049, 2021.

Akritidis, D., Pozzer, A., Flemming, J., Inness, A., Nédélec, P. and Zanis, P.: A process-oriented evaluation of CAMS reanalysis ozone during tropopause folds over Europe for the period 2003–2018, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-998, 2021.

Nussbaumer, C. M., Pozzer, A., Tadic, I., Röder, L., Obersteiner, F., Harder, H., Lelieveld, J. and Fischer, H.: Tropospheric ozone production and chemical regime analysis during the COVID-19 lockdown over Europe, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-1028, 2021.

Borger, C., Beirle, S. and Wagner, T.: A 16-year global climate data record of total column water vapour generated from OMI observations in the visible blue spectral range, Earth System Science Data Discussions, 13, doi:10.5194/essd-2021-319, 2021.

Reifenberg, S. F., Martin, A., Kohl, M., Hamryszczak, Z., Tadic, I., Röder, L., Crowley, D. J., Fischer, H., Kaiser, K., Schneider, J., Dörich, R., Crowley, J. N., Tomsche, L., Marsing, A., Voigt, C., Zahn, A., Pöhlker, C., Holanda, B., Krüger, O. O., Pöschl, U., Pöhlker, M., Jöckel, P., Dorf, M., Schumann, U., Williams, J., Curtius, J., Harder, H., Schlager, H., Lelieveld, J. and Pozzer, A.: Impact of reduced emissions on direct and indirect aerosol radiative forcing during COVID–19 lockdown in Europe, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-1005, 2021.

Su, H., Cheng, Y. and Pöschl, U.: Synergetic measures needed to control infection waves and contain SARS-CoV-2 transmission, , doi:10.1101/2021.11.24.21266824 , 2021.

Yang, X., Wang, Q., Ma, N., Hu, W., Gao, Y., Huang, Z., Zheng, J., Yuan, B., Yang, N., Tao, J., Hong, J., Cheng, Y. and Su, H.: The impact of chlorine chemistry combined with heterogeneous N₂O₅ reactions on air quality in China, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-850, 2021.

Kuhlmann, G., Chan, K. L., Donner, S., Zhu, Y., Schwaerzel, M., Dörner, S., Chen, J., Hueni, A., Nguyen, D. H., Damm, A., Schütt, A., Dietrich, F., Brunner, D., Liu, C., Buchmann, B., Wagner, T. and Wenig, M.: Mapping the spatial distribution of NO₂ with in situ and remote sensing instruments during the Munich NO₂ imaging campaign, Atmospheric Measurement Techniques Discussions, 14, doi:10.5194/amt-2021-303, 2021.

Patel, T., Drozdov, A., Minkov, V. S., Eremets, M. I., Nicol, E. J., Carbotte, J. P., Timusk, T. and Tsen, A. W.: Infrared imaging of samples in ultra high pressure diamond anvil cells, [online] Available from: https://arxiv.org/pdf/2110.14016.pdf, 2021.

Chen, Y.-W., Chen, Y.-C., Chou, C. C.-K., Hung, H.-M., Chang, S.-Y., Eirenschmalz, L., Lichtenstern, M., Ziereis, H., Schlager, H., Stratmann, G., Kaiser, K., Schneider, J., Borrmann, S., Obersteiner, F., Förster, E., Zahn, A., Chen, W.-N., Lin, P.-H., Chang, S.-C., Hernández, M. D. A., Wang, P.-K. and Burrows, J. P.: Contribution of the gas-phase reaction between hydroxyl radical and sulfur dioxide to the sulfate aerosol over West Pacific, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-788, 2021.

Andreae, M. O., Andreae, T. W. and Ditas, F.: Frequent new particle formation at remote sites in the temperate/boreal forest of North America, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-838, 2021.

Kuhn, L., Kuhn, J., Wagner, T. and Platt, U.: The NO₂ camera based on Gas Correlation Spectroscopy, Atmospheric Measurement Techniques Discussions, 14, doi:10.5194/amt-2021-298, 2021.

Pinardi, G., Roozendael, M. V., Hendrick, F., Richter, A., Valks, P., Alwarda, R., Bognar, K., Frieß, U., Granville, J., Gu, M., Johnston, P., Prados-Roman, C., Querel, R., Strong, K., Wagner, T., Wittrock, F. and Gonzalez, M. Y.: Ground-based validation of the MetopA and B GOME-2 OClO measurements, Atmospheric Measurement Techniques Discussions, 14, doi:10.5194/amt-2021-356, 2021.

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 Discussions, 14, doi:10.5194/amt-2021-271, 2021.

Franco, M. A., Ditas, F., Kremper, L. A., Machado, L. A. T., Andreae, M. O., Araújo, A., Barbosa, H. M. J., de Brito, J. F., Carbone, S., Holanda, B. A., Morais, F. G., Nascimento, J. P., Pöhlker, M. L., Rizzo, L. V., Sá, M., Saturno, J., Walter, D., Wolff, S., Pöschl, U., Artaxo, P. and Pöhlker, C.: Occurrence and growth of sub-50 nm aerosol particles in the Amazonian boundary layer, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-765, 2021.

Karagkiozidis, D., Friedrich, M. M., Beirle, S., Bais, A., Hendrick, F., Voudouri, K. A., Fountoulakis, I., Karanikolas, A., Tzoumaka, P., Roozendael, M. V., Balis, D. and Wagner, T.: Retrieval of tropospheric aerosol, NO₂ and HCHO vertical profiles from MAX-DOAS observations over Thessaloniki, Greece, Atmospheric Measurement Techniques Discussions, 14, doi:10.5194/amt-2021-201, 2021.

Li, M., Pozzer, A., Lelieveld, J. and Williams, J.: Global atmospheric ethane, propane and methane trends (2006–2016), Earth System Science Data Discussions, 13, doi:10.5194/essd-2021-246, 2021.

Liu, F., Tao, Z., Beirle, S., Joiner, J., Yoshida, Y., Smith, S. J., Knowland, K. E. and Wagner, T.: A new method for inferring city emissions and lifetimes of nitrogen oxides from high-resolution nitrogen dioxide observations: A model study, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-642, 2021.

Schallock, J., Brühl, C., Bingen, C., Höpfner, M., Rieger, L. and Lelieveld, J.: Radiative forcing by volcanic eruptions since 1990, calculated with a chemistry-climate model and a new emission inventory based on vertically resolved satellite measurements, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-654, 2021.

Kuhn, J., Bobrowski, N., Wagner, T. and Platt, U.: Mobile and high spectral resolution Fabry Pérot interferometer spectrographs for atmospheric remote sensing, Atmospheric Measurement Techniques Discussions, 14, doi:10.5194/amt-2021-133, 2021.

Pukite, J., Borger, C., Dörner, S., Gu, M. and Wagner, T.: OClO as observed by TROPOMI: a comparison with meteorological parameters and PSC observations, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-584, 2021.

Zhou, M., Zheng, G., Wang, H., Qiao, L., Zhu, S., Huang, D., An, J., Lou, S., Tao, S., Wang, Q., Yan, R., Ma, Y., Chen, C., Cheng, Y., Su, H. and Huang, C.: Long-term trends and drivers of aerosol pH in eastern China, Atmospheric Chemistry and Physics Discussions, 21, 1–21, doi:10.5194/acp-2021-455, 2021.

Kim, N., Cheng, Y., Ma , N., Pöhlker, M. L., Klimach, T., Mentel, T. F., Krüger, O. O., Pöschl, U. and Su, H.: Calibration and evaluation of broad supersaturation scanning (BS2) cloud condensation nuclei counter for rapid measurement of particle hygroscopicity and CCN activity, Atmospheric Measurement Techniques Discussions, 14, doi:10.5194/amt-2021-189, 2021.

Kim, N., Su, H., Ma, N., Pöschl, U. and Cheng, Y.: A multiple charging correction algorithm for broad supersaturation scanning cloud condensation nuclei (BS2-CCN) system, Atmospheric Measurement Techniques Discussions, 14, doi:https://amt.copernicus.org/preprints/amt-2022-188 , 2021.

Emmerichs, T., Franco, B., Wespes, C., Kumar, V., Pozzer, A., Rosanka, S. and Taraborrelli, D.: The influence of weather-driven processes on tropospheric ozone, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-584, 2021.

Hernández, M. D. A., Hilboll, A., Ziereis, H., Förster, E., Krüger, O. O., Kaiser, K., Schneider, J., Barnaba, F., Vrekoussis, M., Schmidt, J., Huntrieser, H., Blechschmidt, A.-M., George, M., Nenakhov, V., Klausner, T., Holanda, B. A., Wolf, J., Eirenschmalz, L., Krebsbach, M., Pöhlker, M. L., Hedegaard, A. B., Mei, L., Pfeilsticker, K., Liu, Y., Koppmann, R., Schlager, H., Bohn, B., Schumann, U., Richter, A., Schreiner, B., Sauer, D., Baumann, R., Mertens, M., Jöckel, P., Kilian, M., Stratmann, G., Pöhlker, C., Campanelli, M., Pandolfi, M., Sicard, M., Gomez-Amo, J. L., Pujadas, M., Bigge, K., Kluge, F., Schwarz, A., Daskalakis, N., Walter, D., Zahn, A., Pöschl, U., Bönisch, H., Borrmann, S., Platt, U. and Burrows, J. P.: Overview: On the transport and transformation of pollutants in the outflow of major population centres – observational data from the EMeRGe European intensive operational period in summer 2017, Atmospheric Chemistry and Physics Discussions, 21, 1–81, doi:10.5194/acp-2021-500, 2021.

Helleis, F., Klimach, T. and Pöschl, U.: Vergleich von Fensterlüftungssystemen und anderen Lüftungs- bzw. Luftreinigungsansätzen gegen die Aerosolübertragung von COVID-19 und für erhöhte Luftqualität in Klassenräumen (Version 1.0), , doi:10.5281/zenodo.5070422, 2021.

Han, S., Hong, J., Luo, Q., Xu, H., Tan, H., Wang, Q., Tao, J., Zhou, Y., Peng, L., He, Y., Shi, J., Ma, N., Cheng, Y. and Su, H.: Hygroscopicity of organic compounds as a function of organic functionality, water solubility, molecular weight and oxidation level, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-486, 2021.

Lucas, K., Ackermann, M., Leifke, A. L., Li, W. W., Pöschl, U. and Fröhlich-Nowoisky, J.: Ceylon cinnamon and its major compound Cinnamaldehyde can limit overshooting inflammatory signaling and angiogenesis in vitro: implications for COVID-19 treatment, , doi:10.1101/2021.06.16.448642 , 2021.

Lerot, C., Hendrick, F., Roozendael, M. V., Alvarado, L. M. A., Richter, A., Smedt, I. D., Theys, N., Vlietinck, J., Yu, H., Gent, J. V., Stavrakou, T., Müller, J.-F., Valks, P., Loyola, D., Irie, H., Kumar, V., Wagner, T., Schreier, S. F., Sinha, V., Wang, T., Wang, P. and Retscher, C.: Glyoxal tropospheric column retrievals from TROPOMI, multi-satellite intercomparison and ground-based validation, Atmospheric Measurement Techniques Discussions, 14, doi:10.5194/amt-2021-158, 2021.

Küchler, T., Noël, S., Bovensmann, H., Burrows, J. P., Wagner, T., Borger, C., Borsdorff, T. and Schneider, A.: Total water vapour columns derived from Sentinel 5P using the AMC-DOAS method, Atmospheric Measurement Techniques Discussions, 14, doi:10.5194/amt-2021-144, 2021.

Dienhart, D., Crowley, J. N., Bourtsoukidis, E., Edtbauer, A., Eger, P. G., Ernle, L., Harder, H., Hottmann, B., Martinez, M., Parchatka, U., Paris, J.-D., Pfannerstill, E. Y., Rohloff, R., Schuladen, J., Stönner, C., Tadic, I., Tauer, S., Wang, N., Williams, J., Lelieveld, J. and Fischer, H.: Measurement report: Observation-based formaldehyde production rates and their relation to OH reactivity around the Arabian Peninsula, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-304, 2021.

Machado, L. A. T., Franco, M. A., Kremper, L. A., Ditas, F., Andreae, M. O., Artaxo, P., Cecchini, M. A., Holanda, B. A., Pöhlker, M. L., Saraiva, I., Wolff, S., Pöschl, U. and Pöhlker, C.: How weather events modify aerosol particle size distributions in the Amazon boundary layer, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-314, 2021.

Raj, S. S., Krüger, O. O., Sharma, A., Panda, U., Pöhlker, C., Walter, D., Förster, J.-D., Singh, R. P., S , S., Klimach, T., Darbyshire, E., Martin, S. T., McFiggans, G., Coe, H., Allan, J. D., R, R., Soni, V. K., Su, H., Andreae, M. O., Pöschl, U., Pöhlker, M. L. and Gunthe, S. S.: Planetary boundary layer height modulates aerosol - water interactions during winter in the megacity of Delhi, , doi:10.1002/essoar.10506835.1, 2021.

Braga, R. C., Rosenfeld, D., Krüger, O. O., Ervens, B., Holanda, B. A., Wendisch, M., Krisna, T., Pöschl, U., Andreae, M. O., Voigt, C. and Pöhlker, M. L.: Linear relationship between effective radius and precipitation water content near the top of convective clouds, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-295, 2021.

Platt, U., Wagner, T., Kuhn, J. and Leisner, T.: The “Ideal Spectrograph” for Atmospheric Observations, Atmospheric Measurement Techniques Discussions, 14, doi:10.5194/amt-2020-521, 2021.

Zheng, G., Su, H., Wang, S., Pozzer, A. and Cheng, Y.: Impact of non-ideality on reconstructing spatial and temporal variations of aerosol acidity with multiphase buffer theory, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-55, 2021.

Dörich, R., Eger, P., Lelieveld, J. and Crowley, J. N.: Iodide-CIMS and m/z 62: The detection of HNO₃ as NO₃⁻ in the presence of PAN, peracetic acid and O₃, Atmospheric Measurement Techniques Discussions, 14, doi:10.5194/amt-2021-57, 2021.

Braga, R. C., Ervens, B., Rosenfeld, D., Andreae, M. O., Förster, J.-D., Fütterer, D., Pardo, L. H., Holanda, B. A., Jurkat, T., Krüger, O. O., Lauer, O., Machado , L. A. T., Pöhlker, C., Sauer, D., Voigt, C., Walser, A., Wendisch, M., Pöschl, U. and Pöhlker, M. L.: Cloud droplet number closure for tropical convective clouds during the ACRIDICON–CHUVA campaign, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-80, 2021.

Leppla, D., Zannoni, N., Kremper, L., Williams, J., Pöhlker, C., Sá, M., Solci, M. C. and Hoffmann, T.: Varying chiral ratio of Pinic acid enantiomers above the Amazon rainforest, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-150, 2021.

Paris, J.-D., Riandet, A., Bourtsoukidis, E., Delmotte, M., Berchet, A., Williams, J., Ernle, L., Tadic, I., Harder, H. and Lelieveld, J.: Shipborne measurements of methane and carbon dioxide in the Middle East and Mediterranean areas and contribution from oil and gas emissions, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-114, 2021.

Pöhlker, M. L., Krüger, O. O., Förster, J.-D., Elbert, W., Fröhlich-Nowoisky, J., Pöschl, U., Pöhlker, C., Bagheri, G., Bodenschatz , E., Huffman, J. A., Scheithauer, S. and Mikhailov, E.: Respiratory aerosols and droplets in the transmission of infectious diseases, [online] Available from: https://arxiv.org/abs/2103.01188, 2021.

Tian, X., Wang, Y., Beirle, S., Xie, P., Wagner, T., Xu, J., Li, A., Dörner, S., Ren, B. and Li, X.: Technical note：Evaluation of profile retrievals of aerosols and trace gases for MAX-DOAS measurements under different aerosol scenarios based on radiative transfer simulations, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-45, 2021.

Xie, Q., Su, S., Chen, J., Dai, Y., Yue, S., Su, H., Tong, H., Zhao, W., Ren, L., Xu, Y., Cao, D., Li, Y., Sun, Y., Wang, Z., Liu, C.-Q., Kawamura, K., Jiang, G., Cheng, Y. and Fu, P.: Impact of firework on nitrooxy-organosulfates in urban aerosols during Chinese New Year Eve, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-67, 2021.

Kumar, V., Remmers, J., Beirle, S., Fallmann, J., Kerkweg, A., Lelieveld, J., Mertens, M., Pozzer, A., Steil, B. and Wagner, T.: Evaluation of the coupled high-resolution atmospheric chemistry model system MECO(n) using in situ and MAX-DOAS NO₂ measurements, Atmospheric Measurement Techniques Discussions, 14, doi:10.5194/amt-2021-23, 2021.

Nussbaumer, C., Tadic, I., Dienhart, D., Wang, N., Edtbauer, A., Ernle, L., Williams, J., Obersteiner, F., Gutiérrez-Álvarez, I., Harder, H., Lelieveld, J. and Fischer, H.: Measurement report: In situ observations of deep convection without lightning during the tropical cyclone Florence 2018, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-79, 2021.

Cheng, Y., Ma, N., Witt, C., Rapp, S., Wild, P., Andreae, M. O., Pöschl, U. and Su, H.: High efficacy of face masks explained by characteristic regimes of airborne SARS-CoV-2 virus abundance, , doi:10.1101/2020.09.10.20190348 , 2021.

Chen, C., Wang, X., Binder, K., Ghahremanpour, M. M., van der Spoel, D., Pöschl, U., Su, H. and Cheng, Y.: Energetic analysis of succinic acid in water droplets: insight into the size-dependent solubility of atmospheric nanoparticles, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2020-1329, 2021.

Tadic, I., Nussbaumer, C., Bohn, B., Harder, H., Marno, D., Martinez, M., Obersteiner, F., Parchatka, U., Pozzer, A., Rohloff, R., Zöger, M., Lelieveld, J. and Fischer, H.: Central role of nitric oxide in ozone production in the upper tropical troposphere over the Atlantic Ocean and West Africa, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-52, 2021.

Friedrich, N., Eger, P., Shenolikar, J., Sobanski, N., Schuladen, J., Dienhart, D., Hottmann, B., Tadic, I., Fischer, H., Martinez, M., Rohloff, R., Tauer, S., Harder, H., Pfannerstill, E. Y., Wang, N., Williams, J., Brooks, J., Drewnick, F., Su, H., Li, G., Cheng, Y., Lelieveld, J. and Crowley, J. N.: Reactive nitrogen around the Arabian Peninsula and in the Mediterranean Sea during the 2017 AQABA ship campaign, Atmospheric Chemistry and Physics Discussions, 21, doi:10.5194/acp-2021-42, 2021.