Radon, water chemistry and pollution check by volatile organic compounds in springs around Popocatepetl volcano, Mexico

N. Segovia, P. Peña, C. Valdés, M. A. Armienta, B. Lopez, G. Cisniega, M. Mena


Popocatepetl volcano is a high-risk active volcano in Central Mexico where the highest population density in the country
is settled. Radon in the soil and groundwater together with water chemistry from samples of nearby springs were
analysed as a function of the 2002-2003 volcanic activity. The measurements of soil radon indicated fluctuations related
to both the meteorological and sporadic explosive events. Groundwater radon showed essential differences in
concentration due to the specific characteristics of the studied springs. Water chemistry showed also stability along
the monitoring period. No anthropogenic pollution from Volatile Organic Compounds (VOCs) was observed. An
overview of the soil radon behaviour as a function of the volcanic activity in the period 1994-2002 is also discussed.


soil radon;water chemistry;volcanic activity

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DOI: https://doi.org/10.4401/ag-3182
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Published by INGV, Istituto Nazionale di Geofisica e Vulcanologia - ISSN: 2037-416X