Phytotoxicity of coal waste elutriates (Douro Coalfield, North Portugal) in Lactuca sativa.
Coal mining
Ecotoxicology
Elutriates
Germination assay
Lettuce
Self-burning
Journal
Environmental science and pollution research international
ISSN: 1614-7499
Titre abrégé: Environ Sci Pollut Res Int
Pays: Germany
ID NLM: 9441769
Informations de publication
Date de publication:
Oct 2023
Oct 2023
Historique:
received:
10
07
2023
accepted:
09
09
2023
medline:
30
10
2023
pubmed:
22
9
2023
entrez:
22
9
2023
Statut:
ppublish
Résumé
One of the most important mining areas in the Douro Carboniferous Basin is the Pejão Coalfield. In the summer of 2017, a wildfire promoted the ignition and self-burning some of the coal waste piles in the area and caused important environmental changes, promoting a new heterogenic pedological zonation. This study aims to assess the ecotoxicological effects of 25 soil elutriates from these different soil types in seed germination and individual (emergence, growth, and morphologic alterations) and subindividual parameters in Lactuca sativa. The different evaluated endpoints were differently affected regarding the soil elutriate revealing the high heterogeneity of soil characteristics. The presence of different potentially toxic elements (e.g., Cd, Cr, Pb, Zn) in soil elutriates, even in low concentrations, caused effects on L. sativa development. Unburned coal wastes and downhill soil elutriates were able to inhibit the germination of L. sativa and affect them individually and sub-individually (decrease in size, biomass, and presence of morphological alterations). Additionally, it was observed that all soil elutriates induce a decrease in root size. The results highlight the importance of using elutriate samples in phytotoxicity studies of coal mining waste, since the tailings lixiviate may reduce plant establishment and growth, affecting the terrestrial ecosystems. The integrated use of seed germination assays with the analysis of morphological and biochemical alterations in plants proved to be sensitive parameters to evaluate the phytotoxicity of coal mining wastes.
Identifiants
pubmed: 37735332
doi: 10.1007/s11356-023-29868-w
pii: 10.1007/s11356-023-29868-w
pmc: PMC10611624
doi:
Substances chimiques
Soil Pollutants
0
Coal
0
Soil
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
107650-107660Subventions
Organisme : Fundação para a Ciência e a Tecnologia
ID : CEECIND/01756/2017
Organisme : Fundação para a Ciência e a Tecnologia
ID : 2022.10505.BD
Organisme : Fundação para a Ciência e a Tecnologia
ID : UIDB/04423/2020 and UIDP/04423/2020
Organisme : Fundação para a Ciência e a Tecnologia
ID : UIDB/04683/2020 and UIDP/04683/2020
Organisme : HORIZON EUROPE Framework Programme
ID : NORTE-01-0145-FEDER-000056
Informations de copyright
© 2023. The Author(s).
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