Journal Article

FZJ-2015-01722

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Transition Metal Associations with Primary Biological Particles in Sea Spray Aerosol Generated in a Wave Channel

Guasco, T. L. ; Cuadra-Rodriguez, L. A. ; Pedler, B. E. ; Ault, A. P. ; Collins, D. B. ; Zhao, D.FZJ* ; Kim, M. J. ; Ruppel, M. J. ; Wilson, S. C. ; Pomeroy, R. S. ; Grassian, V. H. ; Azam, F. ; Bertram, T. H. ; Prather, K. A.

2014
American Chemical Society Columbus, Ohio

This record in other databases:  

Please use a persistent id in citations: doi:10.1021/es403203d

Abstract: In the ocean, breaking waves generate airbubbles which burst at the surface and eject sea spray aerosol(SSA), consisting of sea salt, biogenic organic species, andprimary biological aerosol particles (PBAP). Our overallunderstanding of atmospheric biological particles of marineorigin remains poor. Here, we perform a control experiment,using an aerosol time-of-flight mass spectrometer to measurethe mass spectral signatures of individual particles generated bybubbling a salt solution before and after addition ofheterotrophic marine bacteria. Upon addition of bacteria, animmediate increase occurs in the fraction of individual particlemass spectra containing magnesium, organic nitrogen, andphosphate marker ions. These biological signatures areconsistent with 21% of the supermicrometer SSA particles generated in a previous study using breaking waves in an oceanatmospherewave channel. Interestingly, the wave flume mass spectral signatures also contain metal ions including silver, iron,and chromium. The nascent SSA bioparticles produced in the wave channel are hypothesized to be as follows: (1) whole orfragmented bacterial cells which bioaccumulated metals and/or (2) bacteria-derived colloids or biofilms which adhered to themetals. This study highlights the potential for transition metals, in combination with specific biomarkers, to serve as uniqueindicators for the presence of marine PBAP, especially in metal-impacted coastal regions.

---

Contributing Institute(s):

1. Troposphäre (IEK-8)

Research Program(s):

1. 233 - Trace gas and aerosol processes in the troposphere (POF2-233) (POF2-233)

Appears in the scientific report 2014

---

Database coverage:
; BIOSIS Previews ; Current Contents - Agriculture, Biology and Environmental Sciences ; Current Contents - Engineering, Computing and Technology ; IF >= 5 ; JCR ; NCBI Molecular Biology Database ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection ; Zoological Record

---