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Preliminary results regarding the ecotoxicological effects towards common duckweed of sediment and soil samples potentially polluted by mining activities from Moldova Noua area (Romania)
Boros, Bianca-Vanesa
Dascalu, Daniela
Roman, Diana-Larisa
Kovačević, Renata
Stevanović, Zoran
Ostafe, Vasile
Isvoran, Adriana
Menghiu, Gheorghita
Vulpe, Constantina Bianca
ABSTRACT: Due to the former copper mine which created mining dumps that were abandoned after the closure of the mine, the Moldova Noua area is a potentially polluted area by mining activities. The rivers and soils are thus potentially polluted by the mining pollutants, the source of this being the mining dumps from the surrounding area. For the identification of the potential ecotoxic effects of sediment soil samples from this area, a preliminary duckweed growth inhibition test was conducted. In the area of Moldova Noua in October 2020, sediment and soil samples were collected from several sampling points. A preliminary duckweed assay was conducted in order to establish the samples that have toxic effects and for which it is necessary to perform further tests. The preliminary assay involved the exposure of duckweed to the sediment and soil samples, which were diluted with culture media reaching a concentration of 1 %,for 7 days. A total number of 10 duckweed fronds were used for testing for each sample. None of the tested samples showed ecotoxic effects to duckweed, some samples showing only a slight reduction of green frond number by the chlorosis of fronds, but no sample showed a significant decrease in green frond number. The information contained in this poster is / will be available in the funding project's Knowledge Base, along with many other important data that are specific to this project, the Knowledge Base being accessible through the following link: http://www.elearning-chemistry.ro/rosnet2/knowledge-base/.
Interreg IPA - CBC Romania - Serbia
engleski
2021
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