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Featured researches published by Ana Rita Salgueiro.


Archive | 2010

Assessment of the Impact of Pollution by Arsenic in the Vicinity of Panasqueira Mine (Portugal)

Ana Rita Salgueiro; Paula Helena Ávila; Henrique Garcia Pereira; Eduardo Ferreira da Silva

The mining and beneficiation processes at Panasqueira mine have given rise, during a long production period, to a large amount of sulphide-rich waste, contained in several tailing ponds, two of them located near a small village. Among the pollutant elements that occur in the surrounding area, arsenic (AS) was selected to illustrate a geostatistics based methodology aiming at combining land use with the spatial distribution of the contaminant concentration in soils, by taking the former as an external drift to estimate the latter. Since land use is an ordinal variable, its combination, via the external drift algorithm, with As concentration requires its prior transformation into a real number. The proposed transformation relies on the Correspondence Analysis (CA) of the contingency table crossing classes of As concentration with classes of land use. The co-ordinates of samples projection onto the CA first axis turned out to be a reliable proxy of the interaction between As concentration and land use, providing the required real variable to be used as external drift. Hence, ‘raw’ As concentration maps were ‘corrected’ through the external drift algorithm, leading to an increase where land use is more ‘valuable’ (populated areas) and to a decrease where land use is less ‘valuable’ (barren soil). Obviously, the ‘corrected’ maps are a more realistic basis for reclamation planning than the ‘raw’ ones.


Revista Portuguesa de Pedagogia | 2012

Avaliação pelos pares: Percurso normativo da avaliação do desempenho docente em Portugal.

Eusébio André Machado; Marta Abelha; Carlos Barreira; Ana Rita Salgueiro

O principal proposito deste artigo e dar conta, segundo uma logica diacronica, do enquadramento normativo da avaliacao pelos pares em Portugal, principalmente, desde 2008, embora sem esquecer os varios sistemas de avaliacao de desempenho anteriores. Parte‑se de uma tipologia na qual se identificam os varios tipos de avaliadores de acordo com as modalidades de avaliacao: a autoavaliacao (o avaliador e o proprio avaliado); heteroavaliacao (o avaliador e um “outro”, quer com um estatuto interno, quer com um estatuto externo) e a coavaliacao (ausencia da dicotomia avaliador‑avaliado, seguindo‑se uma logica de avaliacao mutua). Tendo como base esta tipologia, realiza‑se uma descricao dos varios sistemas de avaliacao do desempenho docente, concluindo‑se que a evolucao diacronica do discurso normativo e caracterizada por um trânsito de um sistema marcado pela hegemonia da autoavaliacao (ate 2008) para um sistema que consagra uma logica de heteroavaliacao interna baseada na avaliacao pelos pares. Por ultimo, considera‑se que a analise deste percurso normativo assume um carater heuristico, pelo que se recenseiam varias questoes em abertorelativamente a esta problematica.


Applied Geochemistry | 2014

Heavy metal pollution in mine-soil-plant system in S. Francisco de Assis - Panasqueira mine (Portugal)

Carla Candeias; Rita Melo; Paula Freire Ávila; Eduardo Ferreira da Silva; Ana Rita Salgueiro; João Paulo Teixeira


Mine Water and The Environment | 2008

Geochemistry and Mineralogy of Mill Tailings Impoundments from the Panasqueira Mine (Portugal): Implications for the Surrounding Environment

Paula Freire Ávila; Eduardo Ferreira da Silva; Ana Rita Salgueiro; J. A. Farinha


Journal of Hydrology | 2013

Flood magnitudes in the Tagus River (Iberian Peninsula) and its stochastic relationship with daily North Atlantic Oscillation since mid-19th Century

Ana Rita Salgueiro; María José Machado; Mariano Barriendos; Henrique Garcia Pereira; Gerardo Benito


Environmental Science and Pollution Research | 2013

Quantitative–spatial assessment of soil contamination in S. Francisco de Assis due to mining activity of the Panasqueira mine (Portugal)

Eduardo Ferreira da Silva; Paula Freire Ávila; Ana Rita Salgueiro; Carla Candeias; Henrioque Garcia Pereira


Journal of African Earth Sciences | 2014

Acid mine drainage from the Panasqueira mine and its influence on Zêzere river (Central Portugal)

Carla Candeias; Paula Freire Ávila; Eduardo Ferreira da Silva; Adelaide Ferreira; Ana Rita Salgueiro; João Paulo Teixeira


9th International Symposium on Environmental Geochemistry, 9th ISEG | 2012

Assessment of Panasqueira mine surrounding soils through a contamination factor

Carla Candeias; Ana Rita Salgueiro; Eduardo Ferreira da Silva; Paula Freire Ávila


MEDGEO 2013 : 5th International Conference on Medical Geology | 2013

Soil geochemical survey in Panasqueira mine surroundings (Central Portugal) : mining, metal(loid)s and related environmental impact

Carla Candeias; Ana Rita Salgueiro; Eduardo Ferreira da Silva; Paula Freire Ávila; Rita Melo


IX Congreso Ibérico, XI Congreso Nacional de Geoquímica | 2013

Assessment of potential health risk for inhabitants of S. Francisco de Assis living near Panasqueira mine (Portugal)

Carla Candeias; Rita Melo; Paula Freire Ávila; E. Ferreira; Ana Rita Salgueiro; João Paulo Teixeira

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Gerardo Benito

Spanish National Research Council

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