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Risco ambiental em áreas mineiras abandonada de urânio : gestão e monitorização
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Advisor(s)
Abstract(s)
No presente trabalho é apresentado um estudo
comparativo entre duas antigas explorações mineiras
de urânio, atualmente abandonadas, localizadas na
região uranífera das Beiras. A mina de Canto Lagar
está situada no planalto beirão, próximo de Gouveia
(distrito da Guarda), enquanto a mina de Mondego Sul
se localiza mais a oeste, junto da povoação de Ázere
(distrito de Coimbra). A exploração destas duas áreas
mineiras decorreu entre 1987 e 1991, a céu aberto, tendo
sido extraídas cerca de 90 toneladas de materiais, cujos
rejeitados se encontram depositados em escombreiras,
sem qualquer plano de intervenção ambiental.
O principal objetivo deste trabalho consiste
na identificação e comparação das principais
vulnerabilidades e riscos ambientais associados às
atividades mineiras de urânio nas duas áreas em estudo,
particularmente a nível dos solos nas suas zonas
envolventes. Os resultados foram obtidos a partir de amostras de
solo colhidas na área de influência das minas e a montante
das mesmas. De acordo com os resultados obtidos os
solos colhidos encontram-se contaminados não devendo
ser utilizados para qualquer fim pois apresentam teores
superiores aos limites definidos para espaços públicos e
residenciais, comerciais e industriais.
A área mineira de Mondego Sul será mais problemática
relativamente à mina de Canto Lagar devido à sua localização
geográfica com o rio Mondego.
Abstract: In this paper we present a comparative study between two ancient mining of uranium, currently abandoned, located in uranium region of the Beiras. Canto Lagar mine is located in the Beira plateau, near Gouveia (Guarda district), while Mondego Sul mine is located further west, near the village of Ázere (Coimbra district). The exploitation of these two open mining areas occurred between 1987 and 1991, with a production of almost 90 tons of materials, which rejected are stored in heaps without any environmental intervention plan. The main objective of this work is the identification and comparison of the main environmental vulnerabilities and risks of mining uranium activities in both areas of study, particularly at the level of the soil in their surroundings. The results were obtained from soil samples taken in the area of influence of the mines and the amount thereof. The soils collected in the area of influence of these mines are contaminated and cannot be used for any purpose, according to the maximum concentration limits defined for public and residential areas as well as commercial and industrial sites. Mondego Sul mine will be more problematic in relation to Canto Lagar mine due to its geographical location with the Mondego River.
Abstract: In this paper we present a comparative study between two ancient mining of uranium, currently abandoned, located in uranium region of the Beiras. Canto Lagar mine is located in the Beira plateau, near Gouveia (Guarda district), while Mondego Sul mine is located further west, near the village of Ázere (Coimbra district). The exploitation of these two open mining areas occurred between 1987 and 1991, with a production of almost 90 tons of materials, which rejected are stored in heaps without any environmental intervention plan. The main objective of this work is the identification and comparison of the main environmental vulnerabilities and risks of mining uranium activities in both areas of study, particularly at the level of the soil in their surroundings. The results were obtained from soil samples taken in the area of influence of the mines and the amount thereof. The soils collected in the area of influence of these mines are contaminated and cannot be used for any purpose, according to the maximum concentration limits defined for public and residential areas as well as commercial and industrial sites. Mondego Sul mine will be more problematic in relation to Canto Lagar mine due to its geographical location with the Mondego River.
Description
Keywords
Canto Lagar Minas de urânio abandonadas Mondego Sul Mondego Sul Riscos ambientais Abandoned uranium mining Environmental risks Security measures
Pedagogical Context
Citation
ANDRADE, S. ; ANTUNES, I.M.H.R. ; ALBUQUERQUE, M.T.D. (2015) - Risco ambiental em áreas mineiras abandonadas de urânio : gestão e monitorização. Agroforum : Revista da Escola Superior Agrária de Castelo Branco. ISBN 0872-2617. Ano 23, nº 34, p. 53-67.
Publisher
IPCB. ESA