19 documents found, page 1 of 2

Multispectral and hyperspectral remote sensing as a source of knowledge in the ...

ABSTRACT: Remote sensing is an invaluable tool to increase geological and mining knowledge, due to its screening view and variable discrimination and identification capabilities of the target materials. In this study an overview of remote sensing research developed and ongoing within the Portuguese sector of the Iberian Pyrite Belt (PSIPB) since 2000 is given. Multispectral and hyperspectral datasets were proce...

Comportamento geoquímico de alguns elementos vestigiais na envolvente das Minas...

A actividade mineira em S. Domingos cessou há mais de quarenta anos, porém, ainda hoje, o antigo parque mineiro é fonte de dispersão de elementos vestigiais potencialmente contaminantes que se acumulam nos sedimentos e nos solos a juzante da zona de exploração. O presente trabalho teve como objectivo a avaliação da contaminação dos solos e sedimentos na área de confluência das ribeiras de S. Domingos e do Moste...

Investigating relationships between biomarkers of exposure and environmental co...

This study reports on data obtained from a pilot survey focusing on house dust and toenail metal(loids) concentrations in residents living in the industrial city of Estarreja. The study design hereby described aims at investigating relationships between human toenails and both copper and manganese levels in settled house dusts. A total of 21 households and 30 individuals were recruited for the pilot study: 19 h...

Geochemistry, mineralogy, solid-phase fractionation and oral bioaccessibility o...

An urban survey of Lisbon, the largest city in Portugal, was carried out to investigate its environmental burden, emphasizing metallic elements and their public health impacts. This paper examines the geochemistry of lead (Pb) and its influence on human health data. A total of 51 soil samples were collected from urban recreational areas used by children to play outdoors. The semi-quantitative analysis of Pb was...

Urban geochemistry of lead in gardens, playgrounds and schoolyards of Lisbon, P...

To assess the impact of potentially harmful elements in soil/dust on the health of children that use urban recreational areas to play outdoors, an urban survey of Lisbon, the largest city in Portugal was carried out, collecting soils and dusts from public gardens, parks, playgrounds and schoolyards. An exposure and risk assessment study for the incidental soil/dust ingestion of lead was carried out based on US ...

Lead availability in soils from Portugal's Centre Region with special reference...

Previous environmental biomonitoring studies indicated higher environmental lead (Pb) pollution levels at the districts of Aveiro and Leiria (Portugal). In evaluating the risk for human health, which is associated with contaminated soils after oral uptake, total soil concentrations have generally been held against criteria established from toxicological studies based upon the assumption that the uptake of the c...

An exploratory analysis of relationships between socioeconomic, land use, activ...

Imaging spectroscopy answers to acid mine drainage detection at S. Domingos, Ib...

URBSOIL-LISBON-Geoquímica dos solos e poeiras da cidade de Lisboa : caracteriza...

Geoquímica urbana na cidade de Lisboa : controle de dados climatológicos na dis...