selenium, arsenic, phosphorus, contaminant, prussic acid, orthophosphate, sulphate, nitrite, sulfate, carbon tetrachloride, perchlorate, phosphorous, nitrogen, chloride, iodide, groundwater, nutrient, chromium, radium, toxaphene, nitrification, mercury, chloramine, alkali, effluent, fluoride, furan, turbidity, iodine, chlorate, dieldrin, coliform bacteria, alkalinity, hypochlorite, dioxin, soils, chlordane, oxalates, sulfite, sulphite, volatilization, arsenate, urate, ferrous sulphate, sodium fluoride, chlorine, mycotoxins, bromate, toxin, raffinate, sodium, calcium bicarbonate, ammonium, tetrachlorethylene, carbon disulfide, calcium, barium, uric acid, tritium, thiocyanate, denitrification, cyanuric acid, arsenide, salinity, bicarbonate, potassium, purine, organophosphate, coliform, potassium permanganate, formate, calcium nitrate, pollutant, manganese, cyanide, heptachlor, flocculant, trichloroethane, leaching, sedimentation, oxidizing agent, methylmercury, vinyl chloride, sodium nitrate, benzoates, oxalic acid, calcium sulphate, ppb, sodium chloride, hydrogen sulfide, diquat, simazine, cyclohexane, contamination, methane, zinc sulphate, phosphine, leachate, calcium sulfate, boron, toxicity, acrolein, carbonate, hydroxide, chromate, acetate, citrate, oxalate, sulphide, bromide, peroxide, potash, ammonia, sulfide, urea, nitric, phosphate, sulphuric, bromine, citric, boric

ammonium nitrate, niter, nitre, potassium nitrate, saltpeter, saltpetre, silver nitrate, soda niter, uranyl nitrate

atacama desert, caliche, celluloid, dynamite, fluorescein, fluoresceine, fluorescent dye, gelignite, gelly, gunpowder, lunar caustic, miconazole, monistat, nitrify, nitrocalcite, opalesce, ophthalmia neonatorum, popper, powder, resorcinolphthalein, silver nitrate

process, salt, treat