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The Scientific World Journal
Volume 2014, Article ID 935380, 11 pages
http://dx.doi.org/10.1155/2014/935380
Research Article

Lung Cancer Mortality and Radon Concentration in a Chronically Exposed Neighborhood in Chihuahua, Mexico: A Geospatial Analysis

1Centro de Investigación en Materiales Avanzados S.C., Complejo Industrial Chihuahua, Avenida Miguel de Cervantes 120, 31109 Chihuahua, CHIH, Mexico
2Facultad de Ingeniería, Universidad Autónoma de Chihuahua, Circuito Universitario Campus II, 31240 Chihuahua, CHIH, Mexico
3Facultad de Enfermería y Nutriología, Universidad Autónoma de Chihuahua, Circuito Universitario Campus II, 31240 Chihuahua, CHIH, Mexico
4Instituto de Biología, Universidad Autónoma de México, Ciudad Universitaria, A.P. 70-233, 4510 Mexico DF, Mexico

Received 3 March 2014; Revised 24 May 2014; Accepted 9 June 2014; Published 6 August 2014

Academic Editor: Cristina Bosetti

Copyright © 2014 Octavio R. Hinojosa de la Garza et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This study correlated lung cancer (LC) mortality with statistical data obtained from government public databases. In order to asses a relationship between LC deaths and radon accumulation in dwellings, indoor radon concentrations were measured with passive detectors randomly distributed in Chihuahua City. Kriging (K) and Inverse-Distance Weighting (IDW) spatial interpolations were carried out. Deaths were georeferenced and Moran’s correlation coefficients were calculated. The mean values (over ) of the interpolation of radon concentrations of deceased’s dwellings were 247.8 and 217.1 Bq/m3, for K and IDW, respectively. Through the Moran’s values obtained, correspondingly equal to 0.56 and 0.61, it was evident that LC mortality was directly associated with locations with high levels of radon, considering a stable population for more than 25 years, suggesting spatial clustering of LC deaths due to indoor radon concentrations.