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| Format: | Artículo científico |
| Language: | en |
| Published: |
Sociedade Brasileira de Proteção Radiológica - SBPR
2021
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| Online Access: | https://www.redalyc.org/articulo.oa?id=722280927006 |
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Table of Contents:
- Variation in radon concentration in soil gases to detect the NAPL presence Sarah Andresa Bonfim Zildete Rocha Raoni Adão Salviano Jonusan Mariza Ramalho Franklin Paulo Roberto Rocha Ferreira Talita Oliveira Santos Arno Heeren Oliveira Biología NAPL Radon soil gas concentration Non-Aqueous Phase Liquids (NAPLs) compounds are complex mixtures of organic liquids derived from petroleum or other industrial activities. Contamination of soils and groundwater by NAPLs can generate health and economic problems by compromising water resources, restrict soil use, and cause damage to the public and private patrimony and the environment. In the last decades, there has been an increase in areas contaminated by different types of NAPLs, a cause of great concern worldwide, mainly due to the difficulty of locating and quantifying contamination. These issues are majors obstacles that prevent the cleaning of soils and groundwater in affected locations. This work aims to use the concentrations of the Radon gas in the soil to identify areas contaminated by NAPL. The high affinity of the Radon for NAPLs causes a Radon deficit in soil gas in relation to the background observed in the studied region. After understanding the Radon affinity between soil gas, groundwater and NAPLs, a known contaminated area with diesel oil from a gas station spill was chosen to validate the methodology. Measurements of the Radon concentration were carried out with the AlphaGUARD® Radon monitor. These measurements confirmed the deficit in Radon concentration, which demonstrated the ability of this radionuclide to be used as a tracer for NAPL contamination, contributing to plans for remediation and control of pollution, as well as studies of oil wells on-shore. 2021 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280927006 en http://www.redalyc.org/revista.oa?id=7222 Brazilian Journal of Radiation Sciences application/pdf Sociedade Brasileira de Proteção Radiológica - SBPR Brazilian Journal of Radiation Sciences (Brasil) Num.1 Vol.9