The Impact of Metal-Rich Sediments Derived from Mining on Freshwater Stream Life.
Rev Environ Contam Toxicol
; 248: 111-189, 2020.
Article
em En
| MEDLINE
| ID: mdl-30671689
ABSTRACT
Metal-rich sediments have the potential to impair life in freshwater streams and rivers and, thereby, to inhibit recovery of ecological conditions after any remediation of mine water discharges. Sediments remain metal-rich over long time periods and have long-term potential ecotoxicological interactions with local biota, unless the sediments themselves are physically removed or replaced by less metal-rich sediment. Laboratory-derived environmental quality standards are difficult to apply to the field situation, as many complicating factors exist in the real world. Therefore, there is a strong case to consider other, field-relevant, measures of toxic effects as alternatives to laboratory-derived standards and to seek better biological tools to detect, diagnose and ideally predict community-level ecotoxicological impairment. Hence, this review concentrated on field measures of toxic effects of metal-rich sediment in freshwater streams, with less emphasis on laboratory-based toxicity testing approaches. To this end, this review provides an overview of the impact of metal-rich sediments on freshwater stream life, focusing on biological impacts linked to metal contamination.
Palavras-chave
Acid mine drainage; Bioavailability; Biomarkers; Biomonitors; Biotic index; Community ecotoxicology; Community-level biological monitoring; Covarying stressors; Ecosystem functioning; Environmental quality standards; Field scale; Freshwater biota; Impact assessment; Legislation; Metalloids; Metallothioneins; Metals; Mining; Morphological abnormalities; Population-level effects; Sediment; Species Sensitivity Distributions; Tolerance; Toxicity tests; Weight of evidence
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Poluentes Químicos da Água
/
Monitoramento Ambiental
/
Rios
/
Metais
/
Mineração
Tipo de estudo:
Guideline
/
Prognostic_studies
Idioma:
En
Ano de publicação:
2020
Tipo de documento:
Article