1
|
Pereira Freitas G, Adachi K, Conen F, Heslin-Rees D, Krejci R, Tobo Y, Yttri KE, Zieger P. Regionally sourced bioaerosols drive high-temperature ice nucleating particles in the Arctic. Nat Commun 2023; 14:5997. [PMID: 37770489 PMCID: PMC10539358 DOI: 10.1038/s41467-023-41696-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 09/11/2023] [Indexed: 09/30/2023] Open
Abstract
Primary biological aerosol particles (PBAP) play an important role in the climate system, facilitating the formation of ice within clouds, consequently PBAP may be important in understanding the rapidly changing Arctic. Within this work, we use single-particle fluorescence spectroscopy to identify and quantify PBAP at an Arctic mountain site, with transmission electronic microscopy analysis supporting the presence of PBAP. We find that PBAP concentrations range between 10-3-10-1 L-1 and peak in summer. Evidences suggest that the terrestrial Arctic biosphere is an important regional source of PBAP, given the high correlation to air temperature, surface albedo, surface vegetation and PBAP tracers. PBAP clearly correlate with high-temperature ice nucleating particles (INP) (>-15 °C), of which a high a fraction (>90%) are proteinaceous in summer, implying biological origin. These findings will contribute to an improved understanding of sources and characteristics of Arctic PBAP and their links to INP.
Collapse
Affiliation(s)
- Gabriel Pereira Freitas
- Department of Environmental Science, Stockholm University, Stockholm, Sweden
- Bolin Centre for Climate Research, Stockolm University, Stockholm, Sweden
| | - Kouji Adachi
- Department of Atmosphere, Ocean, and Earth System Modeling Research, Meteorological Research Institute, Tsukuba, Japan
| | - Franz Conen
- Department of Environmental Sciences, University of Basel, Basel, Switzerland
| | - Dominic Heslin-Rees
- Department of Environmental Science, Stockholm University, Stockholm, Sweden
- Bolin Centre for Climate Research, Stockolm University, Stockholm, Sweden
| | - Radovan Krejci
- Department of Environmental Science, Stockholm University, Stockholm, Sweden
- Bolin Centre for Climate Research, Stockolm University, Stockholm, Sweden
| | - Yutaka Tobo
- National Institute of Polar Research, Tachikawa, Japan
- Graduate University for Advanced Studies, SOKENDAI, Tachikawa, Japan
| | - Karl Espen Yttri
- The Climate and Environmental Research Institute NILU, Kjeller, Norway
| | - Paul Zieger
- Department of Environmental Science, Stockholm University, Stockholm, Sweden.
- Bolin Centre for Climate Research, Stockolm University, Stockholm, Sweden.
| |
Collapse
|
2
|
Uetake J, Tobo Y, Kobayashi S, Tanaka K, Watanabe S, DeMott PJ, Kreidenweis SM. Visualization of the seasonal shift of a variety of airborne pollens in western Tokyo. Sci Total Environ 2021; 788:147623. [PMID: 34023597 DOI: 10.1016/j.scitotenv.2021.147623] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 04/30/2021] [Accepted: 05/02/2021] [Indexed: 05/15/2023]
Abstract
Airborne pollens cause pollinosis and have the potential to affect microphysics in clouds; however, the number of monitored species has been very limited due to technical difficulties for the morphotype identification. In this study, we applied an eDNA approach to the airborne pollen communities in the suburbs of the Tokyo metropolitan area in Japan, within a mixed urban, rural, and mountain landscape, revealing pollen seasonality of various taxa (a total of 78 families across the period) in the spring season (February to May). Those taxa distinctly shifted in the season, especially in the beginning of February and the middle of April. Air temperature shift was an obvious key factor to affect the airborne pollen community, while the influence of other meteorological factors, such as wind speed, humidity, and precipitation, was not clear. Taxonomic classification of major Amplicon Sequence Variants (ASVs) indicates multiple pollen sources, including natural forest, planted forest, roadside, park lands, and horticultural activities. Most major ASV belongs to Japanese cedar (Cryptomeria japonica), which is the most notable allergen that causes pollinosis in Japan, peaking in mid-February to March. Backward trajectory analysis of air masses suggests that the Japanese cedar and other Cupressaceae plantation forests in the western mountains were a significant source of airborne pollen communities detected at our sampling site. Other major plant pollen sources, including Japanese zelkova (Zelkova serrata) and ginkgo (Ginkgo biloba), emanated from the nearby parks or roadside regions. This study's approach enables us to visualize the phenology of multiple pollen, including timing and duration. Long-term monitoring of this type would provide additional insight into understanding the role of climate change on pollen transmission and links to flowering events.
Collapse
Affiliation(s)
- Jun Uetake
- Colorado State University, Department of Atmospheric Sciences, 80523, USA; National Institute of Polar Research, Tachikawa, Tokyo 190-8518, Japan.
| | - Yutaka Tobo
- National Institute of Polar Research, Tachikawa, Tokyo 190-8518, Japan; SOKENDAI, Tachikawa, Tokyo 190-8518, Japan
| | | | - Keisuke Tanaka
- NODAI Genome Research Center, Tokyo University of Agriculture, Setagaya-ku, Tokyo 156-8502, Japan
| | - Satoru Watanabe
- Department of Bioscience, Tokyo University of Agriculture, Setagaya-ku, Tokyo 156-8502, Japan
| | - Paul J DeMott
- Colorado State University, Department of Atmospheric Sciences, 80523, USA
| | | |
Collapse
|
3
|
Uetake J, Tobo Y, Uji Y, Hill TCJ, DeMott PJ, Kreidenweis SM, Misumi R. Seasonal Changes of Airborne Bacterial Communities Over Tokyo and Influence of Local Meteorology. Front Microbiol 2019; 10:1572. [PMID: 31379765 DOI: 10.1101/542001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 06/24/2019] [Indexed: 05/23/2023] Open
Abstract
In order to study airborne bacterial community dynamics over Tokyo, including fine-scale correlations between airborne microorganisms and meteorological conditions, and the influence of local versus long-range transport of microbes, air samples were collected on filters for periods ranging from 48 to 72 h. The diversity of the microbial community was assessed by next generation sequencing. Predicted source regions of airborne particles, from back trajectory analyses, changed abruptly from the Pacific Ocean to the Eurasian Continent in the beginning of October. However, the microbial community composition and the alpha and beta diversities were not affected by this shift in meteorological regime, suggesting that long-range transport from oceanic or continental sources was not the principal determinant controlling the local airborne microbiome. By contrast, we found a significant correlation between the local meteorology, especially relative humidity and wind speed, and both alpha diversity and beta diversity. Among four potential local source categories (soil, bay seawater, river, and pond), bay seawater and soil were identified as constant and predominant sources. Statistical analyses point toward humidity as the most influential meteorological factor, most likely because it is correlated with soil moisture and hence negatively correlated with the dispersal of particles from the land surface. In this study, we have demonstrated the benefits of fine-scale temporal analyses for understanding the sources and relationships with the meteorology of Tokyo's "aerobiome."
Collapse
Affiliation(s)
- Jun Uetake
- Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States
- National Institute of Polar Research, Tachikawa, Japan
| | - Yutaka Tobo
- National Institute of Polar Research, Tachikawa, Japan
- Department of Polar Science, School of Multidisciplinary Sciences, SOKENDAI (The Graduate University for Advanced Studies), Tachikawa, Japan
| | - Yasushi Uji
- National Research Institute for Earth Science and Disaster Resilience, Storm, Flood and Landslide Research Division, Tsukuba, Japan
| | - Thomas C J Hill
- Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States
| | - Paul J DeMott
- Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States
| | - Sonia M Kreidenweis
- Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States
| | - Ryohei Misumi
- National Research Institute for Earth Science and Disaster Resilience, Storm, Flood and Landslide Research Division, Tsukuba, Japan
| |
Collapse
|
4
|
Uetake J, Tobo Y, Uji Y, Hill TCJ, DeMott PJ, Kreidenweis SM, Misumi R. Seasonal Changes of Airborne Bacterial Communities Over Tokyo and Influence of Local Meteorology. Front Microbiol 2019; 10:1572. [PMID: 31379765 PMCID: PMC6646838 DOI: 10.3389/fmicb.2019.01572] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Accepted: 06/24/2019] [Indexed: 11/13/2022] Open
Abstract
In order to study airborne bacterial community dynamics over Tokyo, including fine-scale correlations between airborne microorganisms and meteorological conditions, and the influence of local versus long-range transport of microbes, air samples were collected on filters for periods ranging from 48 to 72 h. The diversity of the microbial community was assessed by next generation sequencing. Predicted source regions of airborne particles, from back trajectory analyses, changed abruptly from the Pacific Ocean to the Eurasian Continent in the beginning of October. However, the microbial community composition and the alpha and beta diversities were not affected by this shift in meteorological regime, suggesting that long-range transport from oceanic or continental sources was not the principal determinant controlling the local airborne microbiome. By contrast, we found a significant correlation between the local meteorology, especially relative humidity and wind speed, and both alpha diversity and beta diversity. Among four potential local source categories (soil, bay seawater, river, and pond), bay seawater and soil were identified as constant and predominant sources. Statistical analyses point toward humidity as the most influential meteorological factor, most likely because it is correlated with soil moisture and hence negatively correlated with the dispersal of particles from the land surface. In this study, we have demonstrated the benefits of fine-scale temporal analyses for understanding the sources and relationships with the meteorology of Tokyo’s “aerobiome.”
Collapse
Affiliation(s)
- Jun Uetake
- Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States.,National Institute of Polar Research, Tachikawa, Japan
| | - Yutaka Tobo
- National Institute of Polar Research, Tachikawa, Japan.,Department of Polar Science, School of Multidisciplinary Sciences, SOKENDAI (The Graduate University for Advanced Studies), Tachikawa, Japan
| | - Yasushi Uji
- National Research Institute for Earth Science and Disaster Resilience, Storm, Flood and Landslide Research Division, Tsukuba, Japan
| | - Thomas C J Hill
- Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States
| | - Paul J DeMott
- Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States
| | - Sonia M Kreidenweis
- Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States
| | - Ryohei Misumi
- National Research Institute for Earth Science and Disaster Resilience, Storm, Flood and Landslide Research Division, Tsukuba, Japan
| |
Collapse
|
5
|
DeMott PJ, Mason RH, McCluskey CS, Hill TCJ, Perkins RJ, Desyaterik Y, Bertram AK, Trueblood JV, Grassian VH, Qiu Y, Molinero V, Tobo Y, Sultana CM, Lee C, Prather KA. Ice nucleation by particles containing long-chain fatty acids of relevance to freezing by sea spray aerosols. Environ Sci Process Impacts 2018; 20:1559-1569. [PMID: 30382263 DOI: 10.1039/c8em00386f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Heterogeneous ice nucleation in the atmosphere regulates cloud properties, such as phase (ice versus liquid) and lifetime. Aerosol particles of marine origin are relevant ice nucleating particle sources when marine aerosol layers are lifted over mountainous terrain and in higher latitude ocean boundary layers, distant from terrestrial aerosol sources. Among many particle compositions associated with ice nucleation by sea spray aerosols are highly saturated fatty acids. Previous studies have not demonstrated their ability to freeze dilute water droplets. This study investigates ice nucleation by monolayers at the surface of supercooled droplets and as crystalline particles at temperatures exceeding the threshold for homogeneous freezing. Results show the poor efficiency of long chain fatty acid (C16, C18) monolayers in templating freezing of pure water droplets and seawater subphase to temperatures of at least -30 °C, consistent with theory. This contrasts with freezing of fatty alcohols (C22 used here) at nearly 20 °C warmer. Evaporation of μL-sized droplets to promote structural compression of a C19 acid monolayer did not favor warmer ice formation of drops. Heterogeneous ice nucleation occurred for nL-sized droplets condensed on 5 to 100 μm crystalline particles of fatty acid (C12 to C20) at a range of temperatures below -28 °C. These experiments suggest that fatty acids nucleate ice at warmer than -36 °C only when the crystalline phase is present. Rough estimates of ice active site densities are consistent with those of marine aerosols, but require knowledge of the proportion of surface area comprised of fatty acids for application.
Collapse
Affiliation(s)
- Paul J DeMott
- Department of Atmospheric Science, Colorado State University, Fort Collins, CO 80523-1371, USA.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
6
|
Maki T, Susuki S, Kobayashi F, Kakikawa M, Tobo Y, Yamada M, Higashi T, Matsuki A, Hong C, Hasegawa H, Iwasaka Y. Phylogenetic analysis of atmospheric halotolerant bacterial communities at high altitude in an Asian dust (KOSA) arrival region, Suzu City. Sci Total Environ 2010; 408:4556-62. [PMID: 20598737 DOI: 10.1016/j.scitotenv.2010.04.002] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2009] [Revised: 02/24/2010] [Accepted: 04/01/2010] [Indexed: 04/15/2023]
Abstract
The microbial communities transported by Asian desert dust (KOSA) events have attracted much attention as bioaerosols because the transported microorganisms are thought to influence the downwind ecosystems in Korea and Japan. However, the atmospheric microbial community has not been investigated at high altitude in the KOSA arrival area. In this study, to estimate the viability and diversity of atmospheric halotolerant bacteria, which are expected to resist to various environmental stresses as well as high salinities, bioaerosol samples were collected at 10 and 600 m above the ground within the KOSA arrival area, Suzu City, Japan, during KOSA events. During the sampling period, the particle numbers at 600 m were higher than those at 10 m, suggesting that large particles of aerosol fall from the high altitude of 600 m to the ground surface. The microorganisms in bioaerosol samples grew in media containing up to 15% NaCl concentrations demonstrating the viability of the halotolerant bacteria in bioaerosol samples. The PCR-DGGE analysis using 16S rDNA revealed that the bacterial species in NaCl-amended cultures were similar to the bacteria detected from the genomic DNA directly extracted from the bioaerosol samples. The 16S rDNA sequences of bacterial communities in bioaerosol samples were classified into 4 phylotypes belonging to the Bacilluscereus or Bacillussubtilis group. The bioaerosol samples collected at 600 m included 2 phylotypes belonging to B. subtilis, and one phylotype among all 4 phylotypes was identical between the samples at 10 and 600 m. In the atmosphere at 600 m, the halotolerant bacterial community was expected to remain viable, and the species composition was expected to include a few species of the genus Bacillus. During this investigation period, these atmospheric bacteria may have been vertically transported to the ground surface, where the long-range KOSA particle transport from China is frequently observed.
Collapse
Affiliation(s)
- Teruya Maki
- College of Science and Engineering, Kanazawa University, Kakuma, Kanazawa, Ishikawa, 920-1192, Japan.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|