A numerical sensitivity study on the snow-darkening effect by black carbon deposition over the Arctic in spring by Z. Zhang, Z. Zhang, L. Zhou, L. Zhou, L. Zhou, M. Zhang, M. Zhang

“…This study integrates the Snow, Ice, and Aerosol Radiative (SNICAR) model with a polar-optimized version of the Weather Research and Forecasting model (Polar-WRF) to evaluate the impacts of snow melting and land–atmosphere interaction processes on the SDE due to BC deposition. …”
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Revised recommendations from the CSO-HNS taskforce on performance of tracheotomy during the COVID-19 pandemic – what a difference a year makes by D. D. Sommer, D. Cote, T. McHugh, M. Corsten, M. A. Tewfik, S. Khalili, K. Fung, M. Gupta, N. Sne, P. T. Engels, E. Weitzel, T. F. E. Brown, J. Paul, K. M. Kost, J. A. Anderson, L. Sowerby, D. Mertz, I. J. Witterick

“…Conclusion These revised recommendations apply new evidence in optimizing patient and health care system outcomes as well as minimizing risks of COVID-19 transmission during aerosol-generating tracheotomy procedures. As previously noted, additional evidence may lead to further evolution of these and other similar recommendations. …”
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Calm ocean, stormy sea: atmospheric and oceanographic observations of the Atlantic during the Atlantic References and Convection (ARC) ship campaign by L. Köhler, L. Köhler, J. Windmiller, D. Baranowski, M. Brennek, M. Ciuryło, L. Hayo, D. Kȩpski, S. Kinne, B. Latos, B. Lobo, T. Marke, T. Nischik, D. Paul, P. Stammes, A. Szkop, O. Tuinder

“…We present data from the integrated ship sensors (DSHIP); a humidity and temperature profiler (HATPRO); a ceilometer; aerosol instruments (DustTrak, Microtops, and Calitoo); radiosondes; uncrewed aircraft vehicles (UAVs); and conductivity, temperature, and depth (CTD) profiles of the upper ocean. …”
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Gaps in our understanding of ice-nucleating particle sources exposed by global simulation of the UK Earth System Model by R. J. Herbert, A. Sanchez-Marroquin, A. Sanchez-Marroquin, D. P. Grosvenor, D. P. Grosvenor, K. J. Pringle, S. R. Arnold, B. J. Murray, K. S. Carslaw

“…<p>Changes in the availability of a subset of aerosol known as ice-nucleating particles (INPs) can substantially alter cloud microphysical and radiative properties. …”
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Risk of SARS-CoV-2 infection before and after the Omicron wave in a cohort of healthcare workers in Ontario, Canada by Jorge L. Martinez-Cajas, Ann Jolly, Yanping Gong, Gerald Evans, Santiago Perez-Patrigeon, Bradley Stoner, T. Hugh Guan, Beatriz Alvarado

“…We employed Poisson regression for period #1 and Cox regression for period #2 to examine associations of demographic factors (age, sex, ethnicity, migration status, income insufficiency), health factors (chronic conditions, smoking history, SARS-CoV-2 vaccination status), household factors (exposure to COVID-19), occupational factors (work role, exposure to COVID-19 patients, personal protective equipment access, aerosol-generating procedures) and community exposures (use of masks, distance, hand-washing) with SARS-CoV-2 infection. …”
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Inhalable biohybrid microrobots: a non-invasive approach for lung treatment by Zhengxing Li, Zhongyuan Guo, Fangyu Zhang, Lei Sun, Hao Luan, Zheng Fang, Jeramy L. Dedrick, Yichen Zhang, Christine Tang, Audrey Zhu, Yiyan Yu, Shichao Ding, Dan Wang, An-Yi Chang, Lu Yin, Lynn M. Russell, Weiwei Gao, Ronnie H. Fang, Liangfang Zhang, Joseph Wang

“…A nebulizer is employed to encapsulate picoeukaryote algae microrobots within small aerosol particles, enabling them to reach the lower respiratory tract. …”
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Field intercomparison of ice nucleation measurements: the Fifth International Workshop on Ice Nucleation Phase 3 (FIN-03) by P. J. DeMott, J. A. Mirrielees, J. A. Mirrielees, S. S. Petters, S. S. Petters, S. S. Petters, D. J. Cziczo, D. J. Cziczo, M. D. Petters, M. D. Petters, M. D. Petters, H. G. Bingemer, T. C. J. Hill, K. Froyd, K. Froyd, K. Froyd, S. Garimella, S. Garimella, A. G. Hallar, A. G. Hallar, E. J. T. Levin, E. J. T. Levin, I. B. McCubbin, I. B. McCubbin, A. E. Perring, A. E. Perring, A. E. Perring, C. N. Rapp, T. Schiebel, T. Schiebel, J. Schrod, K. J. Suski, K. J. Suski, D. Weber, D. Weber, M. J. Wolf, M. J. Wolf, M. Zawadowicz, M. Zawadowicz, J. Zenker, J. Zenker, O. Möhler, S. D. Brooks

“…The composition of the total aerosols was characterized using the Particle Analysis by Laser Mass Spectrometry (PALMS) and Wideband Integrated Bioaerosol Sensor (WIBS) instruments, and aerosol size distributions were measured by a laser aerosol spectrometer (LAS). …”
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New evidence on the nephrotoxicity of fine particulate matter: Potential toxic components from different emission sources by Fu-Jen Cheng, Chien-Er Huang, Pei-Shih Chen, Yu-Lun Tseng, Chung-Shin Yuan, Ching-Shu Lai

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Global decadal measurements of methanol, ethene, ethyne, and HCN from the Cross-track Infrared Sounder by K. C. Wells, D. B. Millet, J. F. Brewer, V. H. Payne, K. E. Cady-Pereira, R. Pernak, S. Kulawik, S. Kulawik, C. Vigouroux, N. Jones, E. Mahieu, M. Makarova, T. Nagahama, I. Ortega, M. Palm, K. Strong, M. Schneider, D. Smale, R. Sussmann, M. Zhou

“…<p>Volatile organic compounds (VOCs) play an important role in modulating the atmosphere's oxidizing capacity and affect tropospheric ozone, carbon monoxide, formaldehyde, and organic aerosol formation. Space-based observations can provide powerful global information to advance our knowledge of these processes and their changes over time. …”
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An atmospheric correction method for Himawari-8 imagery based on a multi-layer stacking algorithm by Menghui Wang, Donglin Fan, Hongchang He, You Zeng, Bolin Fu, Tianlong Liang, Xinyue Zhang, Wenhan Hu

“…To address the lack of training data, 10,000 Rayleigh-corrected reflectance samples were synthesized for six Himawari-8 bands, using simulated water-leaving, which cover different optically complex water properties through a radiative transfer, and aerosol reflectance data under different geometrical conditions. …”
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Potential impacts of marine fuel regulations on an Arctic stratocumulus case and its radiative response by L. F. Escusa dos Santos, L. F. Escusa dos Santos, H. C. Frostenberg, A. Baró Pérez, A. M. L. Ekman, A. M. L. Ekman, L. Ickes, E. S. Thomson

“…Given the relatively pristine Arctic environment, ship exhaust particle emissions could cause a large perturbation to natural baseline Arctic aerosol concentrations. Low-level stratiform mixed-phase clouds cover large areas of the Arctic region and play an important role in the regional energy budget. …”
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Recent centennial drought on the Tibetan Plateau is outstanding within the past 3500 years by Yu Liu, Huiming Song, Zhisheng An, Qiang Li, Steven W. Leavitt, Ulf Büntgen, Qiufang Cai, Ruoshi Liu, Congxi Fang, Changfeng Sun, Kerstin Treydte, Meng Ren, Lidong Mo, Yi Song, Wenju Cai, Quan Zhang, Weijian Zhou, Achim Bräuning, Jussi Grießinger, Deliang Chen, Hans W. Linderholm, Ashish Sinha, Hai Cheng, Lu Wang, Ying Lei, Junyan Sun, Wei Gong, Xuxiang Li, Linlin Cui, Liang Ning, Lingfeng Wan, Thomas W. Crowther, Constantin M. Zohner

“…Our findings reveal that the 20th century drought extremes are severe within the past three millennia, and likely linked to the weakening of both the Asian Monsoon and Westerlies due to anthropogenic aerosol emissions. Additionally, our analyses identified three distinct stages (110 BC–AD 280, AD 330–770 and AD 950–1300) characterized by shifts toward arid hydroclimate conditions, corresponding to significant social unrest and dynasty collapses, which underscores the potential societal impacts of severe hydroclimatic shifts.…”
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Approaches to modulate buffalo gut microbiome for efficient feed utilization and reduced environmental pollution by Vijit Dey, Puran C. Lailer, Tirtha K. Datta

“…At the same time, ammonia is a potent environmental pollutant and is liable for the depletion of oxygen in the body water, reduction of soil pH, and generation of harmful aerosol fine particles accompanied by the augmented menace of pulmonary diseases. …”
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Current Challenges in Visibility Improvement in Sichuan Basin by Gang Zhao, Min Hu, Zirui Zhang, Lizi Tang, Dongjie Shang, Jie Ren, Xiangxinyue Meng, Yuan Zhang, Miao Feng, Yina Luo, Shishi Yang, Qinwen Tan, Danlin Song, Song Guo, Zhijun Wu, Limin Zeng, Yuanhang Zhang, Shaodong Xie

“…One well‐known reason is that the aerosol extinction enhancement due to hygroscopic growth in the SB was stronger than that in the NCP because the relative humidity (RH) in the SB was higher than that in the NCP. …”
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Evaluation of the WRF-Chem performance for the air pollutants over the United Arab Emirates by Y. Yarragunta, D. Francis, R. Fonseca, N. Nelli

“…WRF-Chem also exhibits a moderate correlation with both AERONET and MODIS aerosol optical depth (AOD) measurements. The correlation at Mezaira is 0.60, while a correlation of 0.65 is observed with MODIS AOD. …”
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Preindustrial-to-present-day changes in atmospheric carbon monoxide: agreement and gaps between ice archives and global model reconstructions by X. Faïn, S. Szopa, V. Naïk, P. Martinerie, D. M. Etheridge, D. M. Etheridge, R. H. Rhodes, C. M. Trudinger, C. M. Trudinger, V. V. Petrenko, K. Fourteau, P. Place, P. Place

“…<p>Global chemistry–climate models (CCMs) play an important role in assessing the climate and air pollution implications of aerosols and chemically reactive gases. Evaluating these models under past conditions and constraining historical sources and sinks necessitate reliable records of atmospheric mixing ratios spanning preindustrial times. …”
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Significant role of biomass burning in heavy haze formation in Nanjing, a megacity in China: molecular-level insights from intensive PM_2.5 sampling on winter hazy days by M. Kang, M. Kang, M. Bao, M. Bao, M. Bao, W. Song, W. Song, A. Abulimiti, A. Abulimiti, C. Wu, C. Wu, F. Cao, F. Cao, S. Szidat, Y. Zhang, Y. Zhang

“…For secondary sources, naphthalene-derived secondary organic carbon (SOC) contributed more to OC in PM<span class="inline-formula">_2.5</span> (0.27 %–2.46 %) compared to biogenic SOC (0.05 %–1.10 %), suggesting anthropogenic volatile organic compounds (VOCs), such as those from fossil fuel and biomass combustion, play a major role in SOC formation in urban aerosols during winter. In addition to promoting secondary aerosol formation, BB could also enhance emissions from other sources, as evidenced by significant correlations between BB tracers and various other source tracers. …”
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Long-Term Evaluation of GCOM-C/SGLI Reflectance and Water Quality Products: Variability Among JAXA G-Portal and JASMES by Salem Ibrahim Salem, Mitsuhiro Toratani, Hiroto Higa, SeungHyun Son, Eko Siswanto, Joji Ishizaka

“…The evaluation employs in situ matchups from NASA’s Aerosol Robotic Network-Ocean Color (AERONET-OC) and cruise measurements. …”
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Measurement Report: Changes in ammonia emissions since the 18th century in south-eastern Europe inferred from an Elbrus (Caucasus, Russia) ice-core record by M. Legrand, M. Legrand, M. Vorobyev, D. Bokuchava, S. Kutuzov, S. Kutuzov, A. Plach, A. Stohl, A. Khairedinova, V. Mikhalenko, M. Vinogradova, S. Eckhardt, S. Preunkert

“…Ammonia also contributes to the atmospheric aerosol that affects air quality. Emission inventories indicate that NH<span class="inline-formula">₃</span> was predominantly emitted by agriculture over the 19th and 20th centuries but, up to now, these estimates have not been compared to long-term observations. …”
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Deployment and evaluation of an NH₄⁺∕&thinsp;H₃O⁺ reagent ion switching chemical ionization mass spectrometer for the detection of reduc... by C. L. Zang, M. D. Willis

“…<p>Reactive organic carbon (ROC) is diverse in its speciation, functionalization, and volatility, with varying implications for ozone production and secondary organic aerosol formation and growth. Chemical ionization mass spectrometry (CIMS) approaches can provide in situ ROC observations, and the CIMS reagent ion controls the detectable ROC species. …”
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