Water Purification - methods, Hydrogen Peroxide - chemistry, Iron - chemistry, Acetamides - chemistry, Atrazine - chemistry, Chlorfenvinphos - chemistry, Diuron - chemistry, Herbicides - chemistry, Insecticides - chemistry, Phenylurea Compounds - chemistry, Water - chemistry
Macaronesia, Analysis, Hydrology, Surveys, Volcanes, Cabo Verde, Fogo (Cabo Verde), Volcanoes, Drone aircraft, Macaronesian, Macaronésie, Macaronésia
Environment, Earth Sciences, Dewey: 550, LCC: DT1
Climate change, Agriculture, Science, Water resources, Hydrology, China, Irrigation, California, Water quality, desalination, Digestion, Salinity, Water treatment, Sweden, Anaerobic digestion, Reuse, Middle East, Sewage sludge, Water reuse, Anaerobic processes, Euphrates River, Baghdad Iraq, United States–US