Publications by authors named "Leila Sahli"
L. as possible indicator of air metallic pollution in urban environment.
Int J Phytoremediation
July 2022
Article Synopsis
- The study investigates the ability of a specific plant (L.) to absorb heavy metals in an urban area with high traffic, specifically Constantine city in Algeria.
- The concentrations of cadmium, copper, lead, and zinc were measured in both washed and unwashed leaves, showing significant amounts of these metals, particularly zinc and lead.
- The findings suggest that the plant can effectively monitor air pollution from heavy metals, providing useful reference values for future research in urban environments.
Article Synopsis
- Three different soil types were tested for their effects on lead (Pb) and cadmium (Cd) bioavailability and toxicity in juvenile land snails, Helix aspersa.
- The study found that EC50 values, which indicate the concentration causing 50% growth reduction, varied across soils, with lead toxicity ranging from 2397 to 6357 mg Pb/kg and cadmium from 327 to 910 mg Cd/kg.
- The highest toxicity and metal uptake occurred in soil with low pH, organic matter, and Cation Exchange Capacity (CEC), underscoring the significance of soil properties in assessing environmental risks of metal contamination.
Using tree leaves and barks collected from contaminated and uncontaminated areas as indicators of air metallic pollution.
Int J Phytoremediation
September 2019
The aim of this study was to show the usefulness of woody species in assessing air pollution by cadmium, copper, lead, and zinc. For this, washed leaves, unwashed leaves, and barks of a coniferous species ( var. ) and a broadleaved one ( F.
View Article and Find Full Text PDFThis study sought to assess sediment contamination by trace metals (cadmium, chromium, cobalt, copper, manganese, nickel, lead and zinc), to localize contaminated sites and to identify environmental risk for aquatic organisms in Wadis of Kebir Rhumel basin in the Northeast of Algeria. Water and surficial sediments (0-5 cm) were sampled in winter, spring, summer and autumn from 37 sites along permanent Wadis of the Kebir Rhumel basin. Sediment trace metal contents were measured by Flame Atomic Absorption Spectroscopy.
View Article and Find Full Text PDFThe objectives of this study are to use different approaches to assess the current pollution status in the wadis of the Kebir Rhumel basin. First, sediment trace metal contents were measured by flame atomic absorption spectroscopy. Then, sediment quality was assessed on the basis of contamination assessment indexes such as: Geoaccumulation Index (Igeo), Contamination factor (C(f)), Contamination degree (C(d)), Sediment Pollution Index (SPI) and SEQ guidelines (Consensus Sediment Quality Guidelines).
View Article and Find Full Text PDFThe classic Microtox® solid phase assay (MSPA) based on the inhibition of light production of the marine bacteria recently renamed Aliivibrio fischeri suffers from various bias and interferences, mainly due to physico-chemical characteristics of the tested solid phase. To precisely assess ecotoxicity of sediments, we have developed an alternative method, named Microtox® leachate phase assay (MLPA), in order to measure the action of dissolved pollutants in the aqueous phase. Two hypotheses were formulated to explain the observed difference between MSPA and MLPA results: a real ecotoxicity of the solid phase or the fixation of bacteria to fine particles and/or organic matter.
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