Phytotoxic Effects of Different Concentrations of Zinc Species on Lettuce

A critical review on the toxicity regulation and ecological risks of zinc oxide nanoparticles to plants

“…, temperature, humidity, and light) and plant species. In certain treatments, ZnO NPs can produce negative effects 32 or positive benefits 33 and are mainly regulated by concentration dependence. More importantly, natural ecosystems show the presence of a large quantity of pollutants, biomolecules, and other components.…”