Both sectors of the Iberian Pyrite Belt, Portuguese and Spanish, have been exploited since
ancient times, but more intensively during and after the second half of the 19th century …

The first studies of diatoms and river pollution were carried out 60 years ago, and the
suitability of these micro-algae as bioassessment indicators for monitoring river quality was …

Water is needed at mine sites for dust suppression, mineral processing, coal washing, and
hydrometallurgical extraction. For these applications, water is mined from surface water …

Lake acidification became an environmental issue of international significance in the late
1960s and early 1970s when Scandinavian scientists claimed that “acid rain” was the …

The active Panasqueira mine is a tin–tungsten (Sn–W) mineralization hosted by
metasediments with quartz veins rich in ferberite. The economic exploitation has been …

Lousal mine is a typical “abandoned mine” with all sorts of problems as consequence of the
cessation of the mining activity and lack of infrastructure maintenance. The mine is closed at …

Both natural and anthropogenic processes can lead to the increasing salinity of surface
waters. The knowledge about the ecological consequences of salinization on the biota is …

Benthic diatom communities are used in the ecological assessment of Portuguese rivers
through the calculation of an autecological index, the IPS (Indice de Polluosensibilité …

Acid Mine Drainage (AMD) results from sulfide oxidation, which incorporates hydrogen ions,
sulfate, and metals/metalloids into the aquatic environment, allowing fixation …

Laboratory scale tests were conducted to assess the efficiency of two different types of waste
materials to remediate acid mine drainage (AMD). The waste materials used in the current …