Application of SS-CS-HR-AAS measurements for the detection of Ag nanoparticles in marine invertebrates.

The present study describes the development of a fit-for-purpose analytical procedure for the detection of Ag NPs in different marine organisms by Solid Sampling Continuous Source High Resolution Atomic Absorption Spectrometry (SS-CS-HR-AAS). The detection is based on the observation of the Ag absorption peak and its atomization delay t which is different for ionic Ag and Ag NPs. The temperature program was optimized in order to achieve the maximum difference between the t ad (Δt ).

Marine sponges as coastal bioindicators of rare earth elements bioaccumulation in the French Mediterranean Sea.

In recent years, the widespread use of rare earth elements (REEs) has raised the issue of their harmful effects on the aquatic environment. REEs are now considered as contaminants of emerging concern. Despite the increasing interest of REEs in modern industry, there is still a lack of knowledge on their potential impact on the environment and especially in the marine environment.

Long-Term Psychological Effects of COVID-19 Pandemic on Children in Jordan.

Millions of children and adolescents have been affected worldwide by quarantine, school closures, and social distancing measures which have been implemented by many countries to control the spread of COVID-19. However, the long-term consequences of such procedures on children's well-being are not clear. Therefore, this study investigated the psychological impacts of COVID-19 on Jordanian children between the ages of 5-11 years old.

Comparative study on Hg bioaccumulation and biotransformation in Mediterranean and Atlantic sponge species.

In this work we present an assessment of mercury (Hg) and methyl mercury (MeHg) bioaccumulation in different species of marine sponges collected off the Northwestern Mediterranean and Northeastern Atlantic coasts. Overall the results showed significant accumulation of Hg in sponges, with the Mediterranean sponge Chondrilla nucula exhibiting the highest total Hg content (up to 0.5 mg kg) and bio-concentration factor (BCF) up to 23.