@article{10272/22047,
year = {2022},
month = {8},
url = {https://hdl.handle.net/10272/22047},
abstract = {Aljustrel, Lousal and S. Domingos mines are located in the Iberian Pyrite Belt (IPB), one of the greatest massive sulfide ore deposits worldwide. These mines’ surrounding streams are affected by Acid Mine Drainage (AMD). The main purpose of this study was to understand AMD influence in the water quality and diatom behavior. Thus, waters and diatoms were sampled in 6 sites from the 3 selected mines on winter and summer of 2016. The highest concentrations were found in acidic sites: A3 (Aljustrel—Al, Cd, Cu, Fe and Zn (and lowest pH)) and L1 (Lousal—As, Mn, Ca, Mg, SO42− and conductivity). The most abundant diatom species was Pinnularia aljustrelica with 100% of dominance in A3 and S1 acidic sites, which puts in evidence this species adaptation to AMD harsh conditions. Multivariate cluster analysis allowed us to reinforce results from previous studies, where spatial differences were more relevant than seasonal ones. In 12 years (2004–2016), and with many transformations undertaken (re-opening and rehabilitation), there is a conservative behavior in the biological species (diatoms) and physicochemical concentrations (metals, pH and sulfates) from these three mining sites. This type of biogeochemical diagnosis is necessary for the sustainable use of these waters and the prevention of the polluting process, aimed to protect the water ecosystem and its biodiversity.},
organization = {This work was supported by Portuguese Foundation for Science and Technology (FCT Portugal) through the financing of GEOBIOTEC unit research [UID/GEO/04035/2020].
The authors are grateful to the Department of Geosciences of the University of Aveiro, Portugal, specially to Carla Patinha for helping with the laboratory work and to the to the Sustainable Mining Engineering Research Group, Department of Mining, Mechanic, Energetic and Construction Engineering. Higher Technical School of Engineering, University of Huelva, Spain. where this work was developed. Ana T Luís and Nuno Durães are funded by national funds (OE) through FCT-Fundação para a Ciência e a Tecnologia, I.P., in the scope of the framework contractforeseen in numbers 4, 5 and 6 of the article 23, of the Decree-Law 57/2016, of 29 August, changed byLaw 57/2017, of 19 July.},
publisher = {MDPI},
keywords = {Acid mine drainage (AMD)},
keywords = {Aljustrel},
keywords = {Lousal},
keywords = {S. Domingos},
keywords = {Iberian Pyrite Belt (IPB)},
keywords = {Diatoms},
keywords = {Surface waters},
keywords = {Mines},
title = {Acid Mine Drainage Effects in the Hydrobiology of Freshwater Streams from Three Mining Areas (SW Portugal): A Statistical Approach},
doi = {10.3390/ijerph191710810},
author = {Luís, Ana Teresa and Grande Gil, José Antonio and Durães, Nuno and Santisteban Fernández, María and Rodríguez Pérez, Ángel Mariano and Ferreira da Silva, Eduardo},
}