Aerococcus viridans COVID-19 Latin America NEV ZnO ZnO-NPs advanced oxidation process air quality modeling anaerobic digestion and soil fertility index artificial neural network behaviour biochar biodegradation bioretention consumer environmental protection responsibility awareness consumption contaminated soil cryoconservation cryoimmobilization cumulative evaporation cyanide data analytics effluent quality environmental factor evaporation evaporation rate fertilizer global warming potential heavy metals