The Role of Landscape Configuration, Season, and Distance from Contaminant Sources on the Degradation of Stream Water Quality in Urban Catchments DOI Open Access
António Fernandes, Luís Filipe Sanches Fernandes, Rui Cortes

et al.

Water, Journal Year: 2019, Volume and Issue: 11(10), P. 2025 - 2025

Published: Sept. 28, 2019

Water resources are threatened by many pollution sources. The harmful effects of can be evaluated through biological indicators capable tracing problems in life forms caused the contaminants discharged into streams. In present study, on stream water quality landscape configuration, season, and distance from contaminant emissions diffuse point sources were accessed evaluation a Portuguese macroinvertebrate index (IPtIN) 12 observation points distributed within studied area (Ave River Basin, Portugal). Partial least-squares path models (PLS-PMs) used to set up cause–effect relationships between this index, various metrics adapted forest, agriculture, artificial areas, aforementioned emissions, considering 13 distances ranging 100 m 56 km. PLS-PM applied summer winter data explore seasonality effects. results exposed significant scale seasonal areas visible for larger than 10 impact agriculture was also related, but influence more evident. forested could hold onto contamination mainly periods. stronger during summer, when short distance. effluent discharges small, compared metrics, had limited statistical significance. Overall, evidenced land use at km or scales, regardless season. This result is valid catchment, transposition other similar catchments needs carefully verified given limited, though available, number points.

Language: Английский

Integrative assessment of river damming impacts on aquatic fauna in a Portuguese reservoir DOI
Regina Santos, Luís Filipe Sanches Fernandes, Rui Cortes

et al.

The Science of The Total Environment, Journal Year: 2017, Volume and Issue: 601-602, P. 1108 - 1118

Published: June 10, 2017

Language: Английский

Citations

98
Toxicity and bioaccumulation of Cadmium, Copper and Zinc in a direct comparison at equitoxic concentrations in common carp (Cyprinus carpio) juveniles DOI Creative Commons
Vyshal Delahaut, Božidar Rašković,

Marta Satorres Salvado

et al.

PLoS ONE, Journal Year: 2020, Volume and Issue: 15(4), P. e0220485 - e0220485

Published: April 9, 2020

The individual toxicity and bioaccumulation of cadmium, copper zinc for common carp juveniles was evaluated in a direct comparison two experimental setups. First, fish were exposed 10 days to different metal concentrations order link LC50 values (concentration lethal 50% the animals) incipient levels (ILL, concentration where survives indefinitely). Accumulated metals showed positive dose dependent uptake cadmium copper, but not zinc. Toxicity cadmium>copper>zinc with 96h at 0.20±0.16 μM, 0.77±0.03 29.89±9.03 μM respectively. For exposure sufficient calculate level therefore ILL same, while 5 6 needed reach resulting slightly lower 0.16 28.33 Subsequently, subacute experiment conducted, 2 equitoxic (10% 96 h) three 1, 3 7 days. Again significant dose-dependent increase gill zinc, observed during 7-day exposure. Copper clearly affected sodium tissue, did significantly alter any electrolytes. overall histopathological effects (e.g. hyperemia hypertrophy) exposures mild most alterations. Our study that an (but zinc) accumulation, however this only correlated mortality cadmium. Metal specific alterations reduced oedema primary epithelium which typically occurred both

Language: Английский

Citations

73
Water or sediment? Partitioning the role of water column and sediment chemistry as drivers of macroinvertebrate communities in an austral South African stream DOI
Tatenda Dalu, Ryan J. Wasserman, Jonathan D. Tonkin

et al.

The Science of The Total Environment, Journal Year: 2017, Volume and Issue: 607-608, P. 317 - 325

Published: July 27, 2017

Language: Английский

Citations

69
A partial least squares – Path modeling analysis for the understanding of biodiversity loss in rural and urban watersheds in Portugal DOI
Luís Filipe Sanches Fernandes, António Fernandes, Ana Rita Ferreira

et al.

The Science of The Total Environment, Journal Year: 2018, Volume and Issue: 626, P. 1069 - 1085

Published: Feb. 19, 2018

Language: Английский

Citations

69
Diagnosis of degraded pastures using an improved NDVI-based remote sensing approach: An application to the Environmental Protection Area of Uberaba River Basin (Minas Gerais, Brazil) DOI Creative Commons
Renato Farias do Valle, Hygor Evangelista Siqueira, Carlos Alberto Valera

et al.

Remote Sensing Applications Society and Environment, Journal Year: 2019, Volume and Issue: 14, P. 20 - 33

Published: Feb. 2, 2019

Language: Английский

Citations

65
Histological and Chemical Analysis of Heavy Metals in Kidney and Gills of Boops boops: Melanomacrophages Centers and Rodlet Cells as Environmental Biomarkers DOI Creative Commons
Alessio Alesci, Nicola Cicero, Angelo Fumia

et al.

Toxics, Journal Year: 2022, Volume and Issue: 10(5), P. 218 - 218

Published: April 27, 2022

Industrialization has resulted in a massive increase garbage output, which is frequently discharged or stored waterways like rivers and seas. Due to their toxicity, durability, bioaccumulation, biomagnification, heavy metals (such as mercury, cadmium, lead) have been identified strong biological poisons. Their presence the aquatic environment potential affect water quality parameters life general. Teleosts' histopathology provides sensitive indicator of pollutant-induced stress, because organs central role transformation different active chemical compounds environment. In particular, gills, kidneys, liver are placed at center toxicological studies. The purpose this study examine morphological changes caused by kidney gills Boops boops, with focus on melanomacrophages centers (MMCs) rodlet cells (RCs) environmental biomarkers, using histological histochemical stainings (hematoxylin/eosin, Van Gieson trichrome, Periodic Acid Schiff reaction, Alcian Blue/PAS 2.5), immunoperoxidase methods. Our findings show an MMCs RCs linked higher exposure metals, confirming these aggregates reliable biomarkers reflected fish fauna. cytological could be important gaining better understanding complicated immune systems teleosts.

Language: Английский

Citations

36
Ecotoxicological impacts of the Fundão dam failure in freshwater fish community: Metal bioaccumulation, biochemical, genetic and histopathological effects DOI
Carlos Eduardo Delfino Vieira, Joseane Aparecida Marques, Niumaique Gonçalves da Silva

et al.

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 832, P. 154878 - 154878

Published: March 29, 2022

Language: Английский

Citations

34
Hydrologic Modeling for Sustainable Water Resources Management in Urbanized Karst Areas DOI Open Access

Hugo Henrique Cardoso de Salis,

Adriana Monteiro da Costa,

João Herbert Moreira Vianna

et al.

International Journal of Environmental Research and Public Health, Journal Year: 2019, Volume and Issue: 16(14), P. 2542 - 2542

Published: July 16, 2019

The potential of karst aquifers as a drinking water resource is substantial because their large storage capacity gained in the course carbonate dissolution. Carbonate dissolution and consequent development preferential paths are also reasons for complex behavior these regards surface underground flow. Hydrological modeling therefore paramount importance an adequate assessment flow components catchments shaped on karsts. cross tabulation such with geology, soils, land use data Geographic Information Systems helps decision makers to set up sustainable groundwater abstractions allocate areas quality water, context conjunctive resources management. In present study, hydrologic using JAMS J2000 software was conducted area Jequitiba River basin located near Sete Lagoas town state Minas Gerais, Brazil. results revealed very high component explained by urbanization Lagoas, which hampers recharge 7.9 hm3 yr−1 storm water. They exposed negative difference (−8.3 yr−1) between availability (6.3 current abstraction from aquifer (14.6 yr−1), keeping previously reported table declines around drilled wells that can reach 48 m old used public supply. Artificial excess not recommended within urban areas, given risk contamination metals hydrocarbons potentially transported well suffosional sinkholes consequence concentrated could however be stored small dams forested catchment headwaters diverted complement percolation soil estimated agriculture pastures. implementation correct fertilizing, management, irrigation practices considered crucial attenuate sinkhole areas.

Language: Английский

Citations

52
A structural equation model to predict macroinvertebrate-based ecological status in catchments influenced by anthropogenic pressures DOI
António Fernandes, Luís Filipe Sanches Fernandes, João Paulo Moura

et al.

The Science of The Total Environment, Journal Year: 2019, Volume and Issue: 681, P. 242 - 257

Published: May 11, 2019

Language: Английский

Citations

44
Biochar from Agricultural by-Products for the Removal of Lead and Cadmium from Drinking Water DOI Open Access

Edgar Pineda Puglla,

Diana Guaya,

Cristhian Tituana

et al.

Water, Journal Year: 2020, Volume and Issue: 12(10), P. 2933 - 2933

Published: Oct. 20, 2020

This study reports the adsorption capacity of lead Pb2+ and cadmium Cd2+ biochar obtained from: peanut shell (BCM), “chonta” pulp (BCH) corn cob (BZM) calcined at 500, 600 700 °C, respectively. The optimal adsorbent dose, pH, maximum kinetics were evaluated. with highest removal is from (BCM) 565 °C in 45 min. experimental conditions were: 14 g L−1 (dose sorbent) pH between 5 7. sorption data best fitted to Freundlich isotherm model. High rates obtained: 95.96% for 99.05. Cd2+. BCH BZM revealed lower efficiency than BCM biochar. results suggest that may be useful heavy metals (Pb2+ Cd2+) drinking water.

Language: Английский

Citations

40