Naslov (eng)

The effect of water, sediment and soil samples potentially polluted by former mining activities from Moldova Noua Area (Romania) on the Growth of the Common Duckweed (Lemna Minor L.) : 10th International Online Conference Tourism and Sustainable Development, Timisoara, Romania, 5-7 May (2022)

Autor

Boros, Bianca
Roman, Diana-Larisa
Vulpe, Constantina Bianca
Dascalu, Daniela
Kovačević, Renata
Stevanović, Zoran
Ostafe, Vasile
Isvoran, Adriana

Opis (eng)

Abstract: The abandoned mining dumps generated by the former copper mining activities from Moldova Nouă area represent a potential pollution threat to both human health and the environment. As the assessment of ecotoxicity is essential for the potentially polluted area, the common duckweed (Lemna minor) was used for the analysis of several sample types. Water, sediment, and soil samples were collected in October 2020, February, May and July 2021 from several sampling points, all in the area of Moldova Nouă. The effects on common duckweed of the collected samples were investigated with a growth inhibition assay which involved the exposure for 7 days of a total number of 10 duckweed fronds for each sample. The water samples were tested without diluting the samples, while the sediment and soil samples were diluted with culture media reaching a concentration of 1%. The effect of heavy metal concentration on ecotoxic effect was also assessed. None of the tested samples showed ecotoxic effects to duckweed, although some samples showed a slight reduction of green frond number. It was observed that Mn, Fe, cd, Zn and Pb affected the number of green fronds after exposure to the tested samples.

Jezik

engleski

Datum

2022

Licenca

© All rights reserved

Predmet

Keywords: common duckweed, ecotoxicity, mining, Moldova Nouă, pollution, heavy metals.

Deo kolekcije (1)

o:179

Institut za rudarstvo i metalurgiju Bor