RCAAP - Repositórios Científicos de Acesso Aberto de Portugal

The use of multivariate statistical analysis of geochemical data for assessing ...

Candeias, C.; Silva, E. Ferreira da; Salgueiro, A. R.; Pereira, H. G.; Reis, A. P.; Patinha, C.; Matos, J. X.; Ávila, P. H.

Aljustrel mine is located in SW Portugal, in the western sector of the Iberian Pyrite Belt. The Aljustrel village was developed around the exploitations of massive polymetallic sulphides that occur in the area (4 orebodies mined, 2 in exploration phase). The pyrite ore was extensively exploited from 1850 to 1993, when production was discontinued. A mining restart occurred in 2008, only during a few months. The ...

Date: 2022 | Origin: Oasisbr

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Dust Characterization and Its Potential Impact during the 2014-2015 Fogo Volcan...

Candeias, Carla; Ávila, Paula Freire; Alves, Célia; Gama, Carla; Sequeira, Cristina; Silva, E. Ferreira da; Rocha, Fernando

ABSTRACT: Fogo (Fogo Island) is the youngest and most active volcano of Cape Verde. The last eruption occurred in 2014-2015. Aiming to assess the dust sources that impacted the air quality during the present study period, fresh lava samples were collected, while Saharan dust intrusions and transport were modeled. Rooftop dust was also collected on the island dwellings and a mineralogical and chemical characteri...

Date: 2021 | Origin: Repositório do LNEG

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Levels, sources and potential human health risks of organic pollutants in urban...

Cachada, A.; Pato, P.; Rocha-Santos, T.; Silva, E. Ferreira da; Duarte, A. C.

Urban soil quality may be severely affected by PAH and PCB contamination, impairing environmental and human health. A comprehensive study was conducted in two contrasting Portuguese urban areas (Lisbon and Viseu) in order to assess the levels of these contaminants and potential risks to human health, to identify sources and study their behavior in soils. The concentrations of PAHs and PCBs were related to the s...

Date: 2012 | Origin: RIA - Repositório Institucional da Universidade de Aveiro

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Erosion and accretion in the Ria de Aveiro inlet (N Portugal) and exportation o...

Martins, V.; Grangeia, C.; Jesus, C. C.; Martins, P.; Laut, L. M.; Sequeira, C.; Dias, J. M.; Silva, P. A.; Abrantes, I.; Silva, E. Ferreira da

Harbours are important man made economic structures that are usually constructed in hydrodynamic complex settings. Their life/service cycle, integrity and maintenance are highly dependent on the knowledge of these settings and the capability to predict future changes and thus their economic impact. In this paper, data regarding bottom and suspended sediments of the Aveiro Harbour inlet were gathered and analyse...

Date: 2011 | Origin: RIA - Repositório Institucional da Universidade de Aveiro

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