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  1. Article ; Online: Bacterial and Chemical Evidence of Coastal Water Pollution from the Tijuana River in Sea Spray Aerosol.

    Pendergraft, Matthew A / Belda-Ferre, Pedro / Petras, Daniel / Morris, Clare K / Mitts, Brock A / Aron, Allegra T / Bryant, MacKenzie / Schwartz, Tara / Ackermann, Gail / Humphrey, Greg / Kaandorp, Ethan / Dorrestein, Pieter C / Knight, Rob / Prather, Kimberly A

    Environmental science & technology

    2023  Volume 57, Issue 10, Page(s) 4071–4081

    Abstract: Roughly half of the human population lives near the coast, and coastal water pollution (CWP) is widespread. Coastal waters along Tijuana, Mexico, and Imperial Beach (IB), USA, are frequently polluted by millions of gallons of untreated sewage and ... ...

    Abstract Roughly half of the human population lives near the coast, and coastal water pollution (CWP) is widespread. Coastal waters along Tijuana, Mexico, and Imperial Beach (IB), USA, are frequently polluted by millions of gallons of untreated sewage and stormwater runoff. Entering coastal waters causes over 100 million global annual illnesses, but CWP has the potential to reach many more people on land
    MeSH term(s) Humans ; Aerosolized Particles and Droplets ; Seawater/microbiology ; Rivers ; Sewage/analysis ; RNA, Ribosomal, 16S ; Water Pollution ; Bacteria ; Aerosols/analysis ; Environmental Monitoring/methods
    Chemical Substances Aerosolized Particles and Droplets ; Sewage ; RNA, Ribosomal, 16S ; Aerosols
    Language English
    Publishing date 2023-03-02
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1520-5851
    ISSN (online) 1520-5851
    DOI 10.1021/acs.est.2c02312
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Secondary Marine Aerosol Plays a Dominant Role over Primary Sea Spray Aerosol in Cloud Formation.

    Mayer, Kathryn J / Wang, Xiaofei / Santander, Mitchell V / Mitts, Brock A / Sauer, Jonathan S / Sultana, Camille M / Cappa, Christopher D / Prather, Kimberly A

    ACS central science

    2020  Volume 6, Issue 12, Page(s) 2259–2266

    Abstract: Marine aerosols play a critical role in impacting our climate by seeding clouds over the oceans. Despite decades of research, key questions remain regarding how ocean biological activity changes the composition and cloud-forming ability of marine ... ...

    Abstract Marine aerosols play a critical role in impacting our climate by seeding clouds over the oceans. Despite decades of research, key questions remain regarding how ocean biological activity changes the composition and cloud-forming ability of marine aerosols. This uncertainty largely stems from an inability to independently determine the cloud-forming potential of primary versus secondary marine aerosols in complex marine environments. Here, we present results from a unique 6-day mesocosm experiment where we isolated and studied the cloud-forming potential of primary and secondary marine aerosols over the course of a phytoplankton bloom. The results from this controlled laboratory approach can finally explain the long-observed changes in the hygroscopic properties of marine aerosols observed in previous field studies. We find that secondary marine aerosols, consisting of sulfate, ammonium, and organic species, correlate with phytoplankton biomass (i.e., chlorophyll-a concentrations), whereas primary sea spray aerosol does not. Importantly, the measured CCN activity (κ
    Language English
    Publishing date 2020-11-25
    Publishing country United States
    Document type Journal Article
    ISSN 2374-7943
    ISSN 2374-7943
    DOI 10.1021/acscentsci.0c00793
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Tandem Fluorescence Measurements of Organic Matter and Bacteria Released in Sea Spray Aerosols.

    Santander, Mitchell V / Mitts, Brock A / Pendergraft, Matthew A / Dinasquet, Julie / Lee, Christopher / Moore, Alexia N / Cancelada, Lucia B / Kimble, Ke'La A / Malfatti, Francesca / Prather, Kimberly A

    Environmental science & technology

    2021  Volume 55, Issue 8, Page(s) 5171–5179

    Abstract: Biological aerosols, typically identified through their fluorescence properties, strongly influence clouds and climate. Sea spray aerosol (SSA) particles are a major source of biological aerosols, but detection in the atmosphere is challenging due to ... ...

    Abstract Biological aerosols, typically identified through their fluorescence properties, strongly influence clouds and climate. Sea spray aerosol (SSA) particles are a major source of biological aerosols, but detection in the atmosphere is challenging due to potential interference from other sources. Here, the fluorescence signature of isolated SSA, produced using laboratory-based aerosol generation methods, was analyzed and compared with two commonly used fluorescence techniques: excitation-emission matrix spectroscopy (EEMS) and the wideband integrated bioaerosol sensor (WIBS). A range of dynamic biological ocean scenarios were tested to compare EEMS and WIBS analyses of SSA. Both techniques revealed similar trends in SSA fluorescence intensity in response to changes in ocean microbiology, demonstrating the potential to use the WIBS to measure fluorescent aerosols alongside EEMS bulk solution measurements. Together, these instruments revealed a unique fluorescence signature of isolated, nascent SSA and, for the first time, a size-segregated emission of fluorescent species in SSA. Additionally, the fluorescence signature of aerosolized marine bacterial isolates was characterized and showed similar fluorescence peaks to those of SSA, suggesting that bacteria are a contributor to SSA fluorescence. Through investigation of isolated SSA, this study provides a reference for future identification of marine biological aerosols in a complex atmosphere.
    MeSH term(s) Aerosols ; Atmosphere ; Bacteria ; Seawater ; Spectrum Analysis
    Chemical Substances Aerosols
    Language English
    Publishing date 2021-03-23
    Publishing country United States
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
    ISSN 1520-5851
    ISSN (online) 1520-5851
    DOI 10.1021/acs.est.0c05493
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: The Sea Spray Chemistry and Particle Evolution study (SeaSCAPE): overview and experimental methods

    Sauer, Jon S. / Mayer, Kathryn J. / Lee, Christopher / Alves, Michael R. / Amiri, Sarah / Bahaveolos, Cristina J. / Franklin, Emily B. / Crocker, Daniel R. / Dang, Duyen / Dinasquet, Julie / Garofalo, Lauren A. / Kaluarachchi, Chathuri P. / Kilgour, Delaney B. / Mael, Liora E. / Mitts, Brock A. / Moon, Daniel R. / Moore, Alexia N. / Morris, Clare K. / Mullenmeister, Catherine A. /
    Ni, Chi-Min / Pendergraft, Matthew A. / Petras, Daniel / Simpson, Rebecca M. C. / Smith, Stephanie / Tumminello, Paul R. / Walker, Joseph L. / DeMott, Paul J. / Farmer, Delphine K. / Goldstein, Allen H. / Grassian, Vicki H. / Jaffe, Jules S. / Malfatti, Francesca / Martz, Todd R. / Slade, Jonathan H. / Tivanski, Alexei V. / Bertram, Timothy H. / Cappa, Christopher D. / Prather, Kimberly A.

    Environmental science. 2022 Feb. 23, v. 24, no. 2

    2022  

    Abstract: Marine aerosols strongly influence climate through their interactions with solar radiation and clouds. However, significant questions remain regarding the influences of biological activity and seawater chemistry on the flux, chemical composition, and ... ...

    Abstract Marine aerosols strongly influence climate through their interactions with solar radiation and clouds. However, significant questions remain regarding the influences of biological activity and seawater chemistry on the flux, chemical composition, and climate-relevant properties of marine aerosols and gases. Wave channels, a traditional tool of physical oceanography, have been adapted for large-scale ocean-atmosphere mesocosm experiments in the laboratory. These experiments enable the study of aerosols under controlled conditions which isolate the marine system from atmospheric anthropogenic and terrestrial influences. Here, we present an overview of the 2019 Sea Spray Chemistry and Particle Evolution (SeaSCAPE) study, which was conducted in an 11 800 L wave channel which was modified to facilitate atmospheric measurements. The SeaSCAPE campaign sought to determine the influence of biological activity in seawater on the production of primary sea spray aerosols, volatile organic compounds (VOCs), and secondary marine aerosols. Notably, the SeaSCAPE experiment also focused on understanding how photooxidative aging processes transform the composition of marine aerosols. In addition to a broad range of aerosol, gas, and seawater measurements, we present key results which highlight the experimental capabilities during the campaign, including the phytoplankton bloom dynamics, VOC production, and the effects of photochemical aging on aerosol production, morphology, and chemical composition. Additionally, we discuss the modifications made to the wave channel to improve aerosol production and reduce background contamination, as well as subsequent characterization experiments. The SeaSCAPE experiment provides unique insight into the connections between marine biology, atmospheric chemistry, and climate-relevant aerosol properties, and demonstrates how an ocean-atmosphere-interaction facility can be used to isolate and study reactions in the marine atmosphere in the laboratory under more controlled conditions.
    Keywords aerosols ; algal blooms ; atmospheric chemistry ; bioactive properties ; chemical composition ; climate ; oceanography ; photooxidation ; seawater ; solar radiation
    Language English
    Dates of publication 2022-0223
    Size p. 290-315.
    Publishing place The Royal Society of Chemistry
    Document type Article
    ZDB-ID 2703814-2
    ISSN 2050-7895 ; 2050-7887
    ISSN (online) 2050-7895
    ISSN 2050-7887
    DOI 10.1039/d1em00260k
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 7401: Show issues

    Order via subito

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    Inter-library loan at ZB MED

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  5. Article ; Online: The Sea Spray Chemistry and Particle Evolution study (SeaSCAPE): overview and experimental methods.

    Sauer, Jon S / Mayer, Kathryn J / Lee, Christopher / Alves, Michael R / Amiri, Sarah / Bahaveolos, Cristina J / Franklin, Emily B / Crocker, Daniel R / Dang, Duyen / Dinasquet, Julie / Garofalo, Lauren A / Kaluarachchi, Chathuri P / Kilgour, Delaney B / Mael, Liora E / Mitts, Brock A / Moon, Daniel R / Moore, Alexia N / Morris, Clare K / Mullenmeister, Catherine A /
    Ni, Chi-Min / Pendergraft, Matthew A / Petras, Daniel / Simpson, Rebecca M C / Smith, Stephanie / Tumminello, Paul R / Walker, Joseph L / DeMott, Paul J / Farmer, Delphine K / Goldstein, Allen H / Grassian, Vicki H / Jaffe, Jules S / Malfatti, Francesca / Martz, Todd R / Slade, Jonathan H / Tivanski, Alexei V / Bertram, Timothy H / Cappa, Christopher D / Prather, Kimberly A

    Environmental science. Processes & impacts

    2022  Volume 24, Issue 2, Page(s) 290–315

    Abstract: Marine aerosols strongly influence climate through their interactions with solar radiation and clouds. However, significant questions remain regarding the influences of biological activity and seawater chemistry on the flux, chemical composition, and ... ...

    Abstract Marine aerosols strongly influence climate through their interactions with solar radiation and clouds. However, significant questions remain regarding the influences of biological activity and seawater chemistry on the flux, chemical composition, and climate-relevant properties of marine aerosols and gases. Wave channels, a traditional tool of physical oceanography, have been adapted for large-scale ocean-atmosphere mesocosm experiments in the laboratory. These experiments enable the study of aerosols under controlled conditions which isolate the marine system from atmospheric anthropogenic and terrestrial influences. Here, we present an overview of the 2019 Sea Spray Chemistry and Particle Evolution (SeaSCAPE) study, which was conducted in an 11 800 L wave channel which was modified to facilitate atmospheric measurements. The SeaSCAPE campaign sought to determine the influence of biological activity in seawater on the production of primary sea spray aerosols, volatile organic compounds (VOCs), and secondary marine aerosols. Notably, the SeaSCAPE experiment also focused on understanding how photooxidative aging processes transform the composition of marine aerosols. In addition to a broad range of aerosol, gas, and seawater measurements, we present key results which highlight the experimental capabilities during the campaign, including the phytoplankton bloom dynamics, VOC production, and the effects of photochemical aging on aerosol production, morphology, and chemical composition. Additionally, we discuss the modifications made to the wave channel to improve aerosol production and reduce background contamination, as well as subsequent characterization experiments. The SeaSCAPE experiment provides unique insight into the connections between marine biology, atmospheric chemistry, and climate-relevant aerosol properties, and demonstrates how an ocean-atmosphere-interaction facility can be used to isolate and study reactions in the marine atmosphere in the laboratory under more controlled conditions.
    MeSH term(s) Aerosols/chemistry ; Atmosphere/chemistry ; Oceans and Seas ; Phytoplankton ; Seawater/chemistry
    Chemical Substances Aerosols
    Language English
    Publishing date 2022-02-23
    Publishing country England
    Document type Journal Article ; Review
    ZDB-ID 2703814-2
    ISSN 2050-7895 ; 2050-7887
    ISSN (online) 2050-7895
    ISSN 2050-7887
    DOI 10.1039/d1em00260k
    Database MEDical Literature Analysis and Retrieval System OnLINE

    More links

    Kategorien

    In stock of ZB MED Bonn / Germany

    Z 7401: Show issues

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

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