Dear Colleagues,

With regards to chemical pollutants, there are various biologically active substances of anthropic origin, such as personal care products (e.g., sunscreens), drugs, psychoactive substances associated with drug addiction, related metabolites, herbicides/pesticides, and so on. Their presence in water is considered as one of the most significant environmental problems of the last decade. For this reason, numerous researchers aim to:

• identify the main chemical pollutants in water systems;
• develop analytical methods for their quantitative determination;
• carry out investigations on the presence of these substances in the water systems of interest;
• evaluate the effectiveness of the transformation/removal pathways (the degradation of these pollutants can lead to the generation of more or less recalcitrant and toxic compounds);
• evaluate the possibility of recovering chemical pollutants in order to be able to reuse them.

This Special Issue intends to highlight the most recent advancements and trends within the framework of chemical pollutants. Research papers and reviews illustrating the most interesting developments related to sample preparation, separation science, spectroscopic and analytical techniques, sensors and biosensors, the characterization of derivatives and the evaluation of their acute and chronic toxicity, as well as the possibility of recovering chemical pollutants in order to reuse them are welcome.

I warmly invite our colleagues to submit their original contributions to this Special Issue in order to provide updates regarding the chemical fate of drugs/biological active molecules and their derivatives on the environment and the evaluation of their properties.

Prof. Dr. Armando Zarrelli
Dr. Olivier Monfort
Guest Editors

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• monitoring
• environmental transformation
• byproducts
• chemical treatments
• biological treatments
• chlorination
• disinfection
• toxicity
• AOPs
• contaminant