Measurement of radon in soils of Lima city - Peru during the period 2016-2017

Título traducido de la contribución: Medición del radon 222 en suelos de la provincia de Lima - Perú durante el período 2016-2017

Lázaro Luís Vilcapoma, María Elena López Herrera, Patrizia Pereyra, Daniel Francisco Palacios, Bertin Pérez, Jhonny Rojas, Laszlo Sajo-Bohus

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

8 Citas (Scopus)

Resumen

Lima City is situated on alluvial fan deposits of rivers flowing through geological formations that contain different levels of uranium. In this paper, a study is made on the average spatial and temporal behavior of radon gas in soils of Lima City. Radon concentration was determined using the LR-115 type 2 track detector during 36 periods, of 14 days each, in twenty holes distributed in the fifteen districts of Lima City. Radon concentration in soil pores ranged from 0.1 to 64.3 kBq/m3 with an average value of 5.6 kBq/m3. The average radon concentration in soil gas was about two times lower in winter than in the other seasons. High radon values during October/November 2017 were related to the earthquakes perceived in Lima City in that period. The highest radon concentrations were found in areas of alluvial deposits whose parental material has been removed from the Quilmaná and Huarangal volcanics by the Chillón and Huaycoloro Rivers. Soil gas radon concentrations were even higher in areas closer to volcanic and less distant from rivers. During the period of maximum flooding of the Chillón, Rímac and Lurín rivers, due to the natural phenomenon “El Niño Costero”, anomalous high soil radon concentrations were observed in most of the measurement sites located near rivers. These high radon values were associated with ground vibrations caused by rock and debris avalanches in rivers and creeks.

Título traducido de la contribuciónMedición del radon 222 en suelos de la provincia de Lima - Perú durante el período 2016-2017
Idioma originalInglés
Páginas (desde-hasta)171-183
Número de páginas13
PublicaciónEarth Sciences Research Journal
Volumen23
N.º3
DOI
EstadoPublicada - 2019

Huella

Profundice en los temas de investigación de 'Medición del radon 222 en suelos de la provincia de Lima - Perú durante el período 2016-2017'. En conjunto forman una huella única.

Citar esto