Publications by authors named "Anais Vernisseau"
Article Synopsis
- The study examined contamination levels of harmful compounds (PCDD/Fs and dl-PCBs) in juvenile European flounder from various nursery areas along the northeastern Atlantic coast.
- It found the least toxic concentration in flounder from Sørfjord, Norway, while flounder from the Wadden Sea in the Netherlands had the highest levels due to a significant presence of a particularly toxic compound (2,3,7,8-TCDD).
- Despite these varying levels of toxicity across locations, the research concluded that no adverse effects are expected in the flounder due to these contaminants based on existing toxicity benchmarks.
Superficial sediments collected from seven estuarine systems located along the Portuguese coast were analyzed for 7 polychlorinated dibenzo-p-dioxins (PCDDs), 10 polychlorinated dibenzofurans (PCDFs), and 12 dioxin-like polychlorinated biphenyls (dl-PCBs). Total PCDD/F concentration ranged from 4.6 to 464 pg g(-1) dry weight (dw), while that of dl-PCBs varied from 26.
View Article and Find Full Text PDFArticle Synopsis
- The study examined the levels of 2,3,7,8-substituted PCDD/Fs and dl-PCBs in sediments and plant species from a salt marsh in Portugal.
- The highest concentrations of these pollutants were found in uncolonized sediments, indicating significant contamination.
- Plants like Sarcocornia perennis and Halimione portulacoides absorbed these contaminants, with H. portulacoides showing a greater accumulation capability compared to S. perennis, and different accumulation patterns observed between plant tissues.
The concentrations of 17 polychlorinated dibenzo-p-dioxins and furans (PCDD/Fs), and 12 dioxin-like polychlorinated biphenyls (dl-PCBs) were measured in sediment and key species as an initial investigation on PCDD/Fs and dl-PCBs contamination in the Mondego estuary (Portugal). The results demonstrated that the values of the total PCDD/Fs (∑PCDD/Fs) concentrations were considerably lower than those of the sum of dl-PCBs (∑dl-PCBs) in all the studied samples. Regarding the contribution of individual congeners, OCDD was the predominant PCDD/F and the mono-ortho PCB 118 and PCB 105 were the dominant PCBs in the majority of the samples.
View Article and Find Full Text PDF