Soil radon (222Rn) monitoring at Furnas Volcano (São Miguel, Azores): Applications and challenges

Regular Article
Part of the following topical collections:
  1. Radon Applications in Geosciences - Progress & Perspectives

Abstract

A soil 222Rn continuous monitoring test was performed in three sampling points inside Furnas Volcano caldera and 222Rn concentration varied between 0 and 153000 Bq/m3. Multivariate regression and spectral analyses were applied to the time series registered in order to understand and filter the influence of external factors on soil 222Rn concentration and to recognise anomalies correlated with deep processes. The regression models show that barometric pressure, soil water content, soil temperature, soil CO2 flux, air temperature, relative air humidity and wind speed are the statistical meaningful variables explaining between 15.8% and 73.6% of 222Rn variations. Spectral analysis allowed to identify seasonal variations and daily variations associated with one cycle per day on winter months only in one of the monitored sites. This diurnal variation is correlated with air temperature, relative air humidity and wind speed cycles. The change in the location of the sampling points was caused by both artificial and natural constrains. On the three monitoring sites, after a period of continuous register, a sudden drop on the 222Rn concentration values was observed and the cause is still under debate. The work performed can be applied for seismovolcanic monitoring and for public health risk assessment.

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References

  1. 1.
    G. Queiroz, J.L. Gaspar, P.D. Cole, J.E. Guest, N. Wallenstein, A.M. Duncan, J. Pacheco, Açoreana VIII, 159 (1995)Google Scholar
  2. 2.
    J.E. Guest, J.L. Gaspar, P.D. Cole, G. Queiroz, A.M. Duncan, N. Wallenstein, T. Ferreira, J.M. Pacheco, J. Volcanol. Geotherm. Res. 92, 1 (1999)CrossRefADSGoogle Scholar
  3. 3.
    J.V. Cruz, R.M. Coutinho, M.R. Carvalho, N. Oskarsson, S.R. Gislason, J. Volcanol. Geotherm. Res. 92, 151 (1999)CrossRefADSGoogle Scholar
  4. 4.
    T. Ferreira, N. Oskarsson, J. Volcanol. Geotherm. Res. 92, 169 (1999)CrossRefADSGoogle Scholar
  5. 5.
    F. Viveiros, C. Cardellini, T. Ferreira, S. Caliro, G. Chiodini, C. Silva, J. Geophys. Res. 115, B12208 (2010)CrossRefADSGoogle Scholar
  6. 6.
    F. Viveiros, Ph.D. thesis, University of the Azores, 2010Google Scholar
  7. 7.
    J.C. Baubron, P.J. Baxter, R. Coutinho, P. Allard, T. Ferreira, J.L. Gaspar in Proceedings of the European laboratory Volcanoes Workshop, Catania, 1994, edited by F. Barberi, R. Casale, M. Fratta (European Comission DG XII, European Science Foundation, 1994), p. 262Google Scholar
  8. 8.
    F. Sousa, Master thesis, University of the Azores, 2003Google Scholar
  9. 9.
    C. Silva, Master thesis, University of the Azores, 2006Google Scholar
  10. 10.
    C. Silva, Ph.D. thesis, University of the Azores, 2013Google Scholar
  11. 11.
    M.E. Cox, Master thesis, University of Hawaii, 1980Google Scholar
  12. 12.
    D.M. Thomas, K.E. Cuff, M.E. Cox, J. Geophys. Res. 91, 12186 (1986)CrossRefADSGoogle Scholar
  13. 13.
    C. Connor, B. Hill, P. Lafemina, M. Navarro, M. Conway, J. Volcanol. Geotherm. Res. 73, 119 (1996)CrossRefADSGoogle Scholar
  14. 14.
    M. Heiligmann, J. Stix, G. Williams-Jones, B.S. Lollar, G. Garzón, J. Volcanol. Geotherm. Res. 77, 267 (1997)CrossRefADSGoogle Scholar
  15. 15.
    N. Segovia, M. Mena, P. Peña, E. Tamez, J.L. Seidel, M. Monnin, C. Valdez, Radiat. Meas. 31, 307 (1999)CrossRefGoogle Scholar
  16. 16.
    N. Segovia, C. Valdez, P. Peña, M. Mena, E. Tamez, Radiat. Meas. 34, 433 (2001)CrossRefGoogle Scholar
  17. 17.
    M.A. Armienta, N. Varley, E. Ramos, Geofísica Internacional 41, 271 (2002)Google Scholar
  18. 18.
    S. Alparone, B. Bhncke, S. Giammanco, M. Neri, P. Privitera, Geophys. Res. Lett. 32, L16307 (2005)CrossRefADSGoogle Scholar
  19. 19.
    G. Immè, S. La Delfa, S. Lo Nigro, D. Morelli, G. Patanè, Ann. Geophys. 48, 65 (2005)Google Scholar
  20. 20.
    G. Immè, S. La Delfa, S. Lo Nigro, D. Morelli, G. Patanè, Radiat. Meas. 41, 241 (2006)CrossRefGoogle Scholar
  21. 21.
    G. Immè, S. La Delfa, S. Lo Nigro, D. Morelli, G. Patanè, Appl. Radiat. Isot. 64, 624 (2006)CrossRefGoogle Scholar
  22. 22.
    D. Morelli, S. Di Martino, G. Immè, S. La Delfa, S. Lo Nigro, G. Patanè, Radiat. Meas. 41, 721 (2006)CrossRefGoogle Scholar
  23. 23.
    M. Neri, B. Bechncke, M. Burton, G. Galli, S. Giammanco, E. Pecora, E. Privitera, D. Reitano, Geophys. Res. Lett. 33, L24316 (2006)CrossRefADSGoogle Scholar
  24. 24.
    S. La Delfa, G. Immè, S. Lo Nigro, D. Morelli, G. Patanè, F. Vizzini, Radiat. Meas. 42, 1404 (2007)CrossRefGoogle Scholar
  25. 25.
    S. La Delfa, I. Agostino, D. Morelli, G. Patanè, Radiat. Meas. 43, 1299 (2008)CrossRefGoogle Scholar
  26. 26.
    C. Cigolini, G. Gervino, R. Bonetti, F. Conte, M. Laiolo, D. Coppola, A. Manzoni, Geophys. Res. Lett. 32, L12308 (2005)CrossRefADSGoogle Scholar
  27. 27.
    C. Cigolini, M. Laiolo, D. Coppola, Earth Planet. Sci. Lett. 257, 511 (2007)CrossRefADSGoogle Scholar
  28. 28.
    C. Cigolini, P. Poggi, M. Ripepe, M. Laiolo, C. Ciamberlini, D. Delle Done, G. Ulivieri, D. Coppola, G. Lacanna, E. Marchetti, D. Piscopo, R. Genco, J. Volcanol. Geotherm. Res. 184, 381 (2009)CrossRefADSGoogle Scholar
  29. 29.
    M. Laiolo, C. Cigolini, D. Coppola, D. Piscopo, J. Environ. Radioact. 105, 21 (2012)CrossRefGoogle Scholar
  30. 30.
    P. Delmelle, J. Stix, in Encyclopedia of Volcanoes, edited by H. Sigurdsson, B. Houghton, S.R. McNutt, H. Rymer, J. Stix (American Press, 2000)Google Scholar
  31. 31.
    C.-Y. King, J. Geophys. Res. 85, 3065 (1980)CrossRefADSGoogle Scholar
  32. 32.
    T.F. Yang, V. Walia, L.L. Chyi, C.C. Fu, C.-H. Chen, T.K. Liu, S.R. Song, C.Y. Lee, M. Lee, Radiat. Meas. 40, 496 (2005)CrossRefGoogle Scholar
  33. 33.
    A. Kumar, S. Sing, S. Mahajan, B.S. Bajwa, R. Kalia, S. Dhar, Appl. Radiat. Isot. 67, 1904 (2009)CrossRefGoogle Scholar
  34. 34.
    C. Papastefanou, Radiat. Meas. 45, 943 (2010)CrossRefGoogle Scholar
  35. 35.
    D.V. Reddy, P. Nagabhushanam, Appl. Geochem. 26, 731 (2011)CrossRefGoogle Scholar
  36. 36.
    A.M. Chirkov, Bull. Volcanol. 39, 126 (1975)CrossRefADSGoogle Scholar
  37. 37.
    J.C. Baubron, P. Allard, J.P. Toutain, Nature 344, 51 (1990)CrossRefADSGoogle Scholar
  38. 38.
    J.C. Baubron, P. Allard, J.C. Sabroux, D. Tedesco, J.P. Toutain, J. Geol. Soc. Lond. 148, 571 (1991)CrossRefGoogle Scholar
  39. 39.
    G. Etiope, S. Lombardi, J. Radioanal. Nucl. Chem. 193, 291 (1995)CrossRefGoogle Scholar
  40. 40.
    G. Ciotoli, G. Etiope, M. Guerra, S. Lombardi, Tectonophysics 301, 321 (1999)CrossRefADSGoogle Scholar
  41. 41.
    G. Ciotoli, S. Lombardi, A. Annunziatellis, J. Geophys. Res. 112, B05407 (2007)ADSGoogle Scholar
  42. 42.
    M. Guerra, S. Lombardi, Tectonophysics 339, 511 (2001)CrossRefADSGoogle Scholar
  43. 43.
    G. Etiope, G. Martinelli, Phys. Earth and Planet. Int. 129, 185 (2002)CrossRefADSGoogle Scholar
  44. 44.
    P. Allard, J. Carbonnelle, D. Dajlevic, J. Le Bronec, P. Morel, M.C. , Robe, J.M. Maurenas, R. Faivre-Pierret, D. Martin, J.C. Sabroux, P. Zettwoog, Nature 351, 387 (1991)CrossRefADSGoogle Scholar
  45. 45.
    G. Chiodini, R. Cioni, M. Guidi, B. Raco, L. Marini, Appl. Geochem. 13, 543 (1998)CrossRefGoogle Scholar
  46. 46.
    G. Williams-Jones, H. Rymer, in Encyclopedia of Volcanoes, edited by H. Sigurdsson, B. Houghton, S.R. McNutt, H. Rymer, J. Stix (American Press, 2000)Google Scholar
  47. 47.
    F. Viveiros, T. Ferreira, J.C. Vieira, C. Silva, J.L. Gaspar, J. Volcanol. Geotherm. Res. 177, 883 (2008)CrossRefADSGoogle Scholar
  48. 48.
    F. Viveiros, J. Vandemeulebrouck, A.P. Rinaldi, T. Ferreira, C. Silva, J.V. Cruz, J. Geophys. Res. Solid Earth 119, 7578 (2014)CrossRefADSGoogle Scholar
  49. 49.
    A.P. Rinaldi, J. Vandemeulebrouck, M. Todesco, F. Viveiros, J. Geophys. Res. 117, B11201 (2012)CrossRefADSGoogle Scholar
  50. 50.
    P. Gasparini, M.S.M. Mantovani, J. Volcanol. and Geotherm. Res. 3, 325 (1978)CrossRefADSGoogle Scholar
  51. 51.
    J.C. Baubron, A. Rigo, J.P. Toutain, Earth Planet. Sci. Lett. 196, 69 (2002)CrossRefADSGoogle Scholar
  52. 52.
    M. Van Camp, P. Vauterin, Computers Geosci. 31, 631 (2005)CrossRefADSGoogle Scholar
  53. 53.
    P. Vauterin, M. Van Camp, Tsoft Manual (Royal Observatory of Belgium, Bruxelles, 2011)Google Scholar
  54. 54.
    F.J. Harris, Proceedings of the IEEE 66, 51 (1978)CrossRefADSGoogle Scholar
  55. 55.
    N. Draper, H. Smith, Applied Regression Analysis, 2nd edn. (John Wiley and Sons, Inc., USA, 1981)Google Scholar
  56. 56.
    R.J. Freund, W.J. Wilson, Regression analysis. Statistical modeling of a response variable (Academic Press., USA, 1998)Google Scholar
  57. 57.
    J.L. Gaspar, T. Ferreira, G. Queiroz, N. Wallenstein, J. Pacheco, J. Guest, A. Duncan, P. Cole, Universidade do Porto – Faculdade de Ciências Museu e Laboratório Mineralógico e Geológico 4, 999 (1995)Google Scholar
  58. 58.
    C. Carmo, Master thesis, University of the Azores, 2004Google Scholar
  59. 59.
    R. Marques, J. Zêzere, R. Trigo, J.L. Gaspar, I. Trigo, Hydrol. Process. 22, 478 (2008)CrossRefADSGoogle Scholar
  60. 60.
    J. Planinic, V. Radolic, Z. Lazanin, Appl. Radiat. Isot. 55, 267 (2001)CrossRefGoogle Scholar
  61. 61.
    I. Miklavcic, V. Radolic, B. Vukovic, M. Poje, M. Varga, D. Stanic, J. Planinic, Appl. Radiat. Isot. 66, 1459 (2008)CrossRefGoogle Scholar
  62. 62.
    W. Lee, R. Bennet, K. Meagher, U.S. Geological Survey, Open File Report (1972)Google Scholar
  63. 63.
    J. Wellik II, Master thesis, Michigan Technological University, 2014Google Scholar
  64. 64.
    R. Silva, J. Havskov, C. Bean, N. Wallenstein, J. Seismol. 16, 389 (2012)CrossRefADSGoogle Scholar
  65. 65.
    A. Dai, C. Desser, J. Geophys. Res. 104, 31109 (1999)CrossRefADSGoogle Scholar
  66. 66.
    K. Singh, M. Singh, S. Singh, H.S. Sahota, Z. Papp, Radiat. Meas. 39, 213 (2005)CrossRefGoogle Scholar
  67. 67.
    F. Aumento, Geofísica Internacional 41, 499 (2002)Google Scholar
  68. 68.
    G. Steinitz, O. Piatibratova, S.M. Barbosa, J. Geophys. Res. 112, B10211 (2007)CrossRefADSGoogle Scholar
  69. 69.
    P. Richon, F. Perrier, B.P. Koirala, F. Girault, M. Bhattarai, S.N. Sapkota, J. Environ. Radioact. 102, 88 (2011)CrossRefGoogle Scholar
  70. 70.
    Y. Han, Y. Han, Chin. Sci. Bull. 47, 1969 (2002)CrossRefGoogle Scholar
  71. 71.
    C.J. Groves-Kirkby, A.R. Denman, R.G.M. Crockett, P.S. Phillips, G.K. Gilmore, Sci. Total Environ. 367, 191 (2006)CrossRefGoogle Scholar
  72. 72.
    R.R. Schureman, U. S. Department of Commerce, Coast, Geodetic Survey, Special publication No. 98 (1976)Google Scholar
  73. 73.
    J.L. Pinault, J.C. Baubron, J. Geophys. Res. 102, 18101 (1997)CrossRefADSGoogle Scholar
  74. 74.
    Ll. Font, C. Baixeras, V. Moreno, J. Bach, Radiat. Meas. 43, S319 (2008)CrossRefGoogle Scholar
  75. 75.
    J.R. Garcia-Vindas, M.M. Monnin, Radiat. Meas. 39, 319 (2005)CrossRefGoogle Scholar
  76. 76.
    W.E. Clements, M.H. Wilkening, J. Geophys. Res. 79, 5025 (1974)CrossRefADSGoogle Scholar
  77. 77.
    M. García-Talavera, B. Quintana, E. García-Díez, F. Fernández, Atmos. Environ. 35, 221 (2001)CrossRefADSGoogle Scholar
  78. 78.
    A. Hipólito, Master thesis, University of the Azores, 2009Google Scholar

Copyright information

© EDP Sciences and Springer 2015

Authors and Affiliations

  • C. Silva
    • 1
    • 2
  • T. Ferreira
    • 2
  • F. Viveiros
    • 2
  • P. Allard
    • 3
  1. 1.Centro de Vulcanologia e Avaliação de Riscos Geológicos, Universidade dos AçoresPonta DelgadaPortugal
  2. 2.Centro de Informação e Vigilância Sismovulcânica dos Açores, Universidade dos AçoresPonta DelgadaPortugal
  3. 3.Institut de Physique du Globe de ParisIPGP, ParisFrance

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