Interhemispheric Transport of Viable Fungi and Bacteria from Africa to the Caribbean with Soil Dust

  • Joseph M. Prospero
Conference paper

Abstract

Studies over the past several decades have shown that aerosols (e.g., particles of pollution, dust, and smoke from fires) can be transported across great distance over the oceans, from one continent to another. There is, however, only anecdotal indirect evidence for the long-range transport (LRT) of viable microorganisms (MOs) on intercontinental scales (Brown and Hovmøller 2002). In particular, there have been no long-term systematic studies of the LRT of MOs. Here, we report on the measurements of aerosols in the trade winds on Barbados, West Indies, over a 2-year period (1996–1997). We made concurrent daily measurements of bacteria and fungi based on cultures developed from filters. Previous studies have shown that large quantities of African dust are present in winds at Barbados during much of the year. Our study shows that cultivable bacteria and fungi are only found in air that contains African dust. Air transported from other regions yields no viable organisms. These results raise questions about the factors that affect the transport and survivability of MOs in the atmosphere (Prospero et al. 2003).

Keywords

Migration Dust Sulfide Agar Europe 

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References

  1. Arimoto R, Duce RA, Ray BJ, Ellis WG Jr, Cullen JD, Merrill JT (1995) Trace elements in the atmosphere over the North Atlantic. J Geophys Res 100: 1199 - 1214CrossRefGoogle Scholar
  2. Brown JKM, Hovmeller MS (2002) Aerial dispersal of pathogens on the global and continental scales and its impact on plant disease. Science 297: 537 - 541PubMedCrossRefGoogle Scholar
  3. Griffin DW, Garrison VH, Herman JR, Shinn EA (2001) African desert dust in the Carib-bean atmosphere: microbiology and public health. Aerobiologia 17: 203 - 213CrossRefGoogle Scholar
  4. Herman JR, Bhartia PK, Torres O, Hsu C, Seftor C, Celarier E (1997) Global distribution of UV-absorbing aerosols from Nimbus_7/TOMS data. J Geophys Res 102: 16911 - 16922CrossRefGoogle Scholar
  5. Husar B, Prospero JM, Stowe LL (1997) Characterization of tropospheric aerosols over the oceans with the NOAA/AVHRR optical thickness operational product. J Geophys Res 102: 16889 - 16909CrossRefGoogle Scholar
  6. Lacey J (1991) Aerobiology and health: the role of airborne fungal spores in respiratory disease. In: Hawkworth DL (ed) Frontiers in mycology. CAB International, Wallingford, OxonGoogle Scholar
  7. Lacey J, Venette J (1995) Outdoor air sampling techniques. In: Burge HA (ed) Bioaerosols. Lewis, Boca Raton, pp 407 - 471Google Scholar
  8. Li X, Maring H, Savoie D, Voss K, Prospero JM (1996) Dominance of mineral dust in aerosol light scattering in the North Atlantic trade winds. Nature 380: 416 - 419CrossRefGoogle Scholar
  9. Lighthart B, Setzenbach LD (1994) Distribution of microbial bioaerosol. In: Lighthart B, Mohr AJ (eds) Atmospheric microbial aerosols: theory and applications. Kluwer, Boston, pp 68 - 98CrossRefGoogle Scholar
  10. Muilenberg ML (1995) The outdoor aerosol. In: Burge HA (ed) Bioaerosols. Lewis, Boca Raton, pp 163 - 204Google Scholar
  11. Perry KD, Cahill TA, Eldred RA, Dutcher DD, Gill TE (1997) Long-range transport of North African dust to the eastern United States. J Geophys Res 102: 11225 - 11238CrossRefGoogle Scholar
  12. Prospero JM (1996) The atmospheric transport of particles to the ocean. In: Ittekkott V, Honjo S, Depetris PJ (eds) Particle flux in the ocean. SCOPE report 57. Wiley, New York, pp 19 - 52Google Scholar
  13. Prospero JM (1999) Long-term measurements of the transport of African mineral dust to the Southeastern United States: implications for regional air quality. J Geophys Res 104: 15917 - 15927CrossRefGoogle Scholar
  14. Prospero JM, Lamb PJ (2003) African droughts and dust transport to the Caribbean: climate change implications. Science 302: 1024-1027, 2003Google Scholar
  15. Prospero JM, Olmez I, Ames M (2001) Al and Fe in PM 2.5 and PM 10 suspended particles in South-Central Florida: The impact of the long range transport of African mineral dust. J Water Air Soil Pollut 125: 291-317Google Scholar
  16. Prospero JM, Blades E, Mathison G, Naidu R (2003) Interhemispheric transport of viable fungi and bacteria from Africa to the Caribbean with soil dust. Aerobiologia (submitted) Swap RM, Garstang M, Greco S, Talbot R, Kallberg P (1992) Saharan dust in the Amazon basin. Tellus B 44: 133 - 149Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2004

Authors and Affiliations

  • Joseph M. Prospero
    • 1
  1. 1.Cooperative Institute for Marine and Atmospheric Studies, Rosenstiel School of Marine and Atmospheric ScienceUniversity of MiamiMiamiUSA

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