Benefits and risks coming from materials used in green technologies, functional materials, catalytic pollution control, carriers, active components, monolithic substrates, nanotechnology, engineered nanoparticles use and risks, biosensors, synthetic and natural polymer materials used in environmental and agriculture applications, primary and secondary microplastics, bioplastics, exoplastics and compostable polymers, biodegradation, hydrogels, superabsorbers, carbonaceous materials, humic substances, synthetic and natural surfactants, inorganic materials, geotextiles, Perovskites, clay minerals, solar-cells materials, fuel-cell technology, biofuels, biosorption.