Related by context. Frequent words. (Click for all words.) 43 fluoride 43 Fluoride 40 toxic byproducts 40 fluoridating 39 Hydrogen peroxide 39 suspected carcinogen 39 rocket propellant 39 arsenic mercury 39 purify uranium 38 Depleted uranium 37 chlorine 37 fluoridation 37 contaminating groundwater 37 Highly enriched uranium 36 Thallium 36 iron manganese 36 activated charcoal 36 squalene 36 chlorinated 35 Sulfate 35 contaminate groundwater 35 fluorine 35 radioactive isotope 35 softeners 35 Chlorine 35 harmful 35 chlorinating 35 chromium 35 fluoridate 34 harmfulness 34 harmful contaminants 34 dental amalgam 34 trace amounts 34 Hydrochloric acid 34 potentially carcinogenic 34 chlorination 34 carcinogenic chemicals 34 Fluoridation 33 sorbitol 33 Perchlorate 33 Nitrates 33 dental fillings 33 Centrifuges 33 Nitrate 33 radioactive tritium 33 radium 32 Toxic chemicals 32 nitrate 32 radionuclides 32 mg l 32 carcinogenic 32 sodium hypochlorite 32 poisons 31 depleted uranium 31 dangers posed 31 tritium 31 potentially lethal 31 calcium magnesium 31 Pulsed 31 cyanide 31 iodine 31 potentially harmful 31 fluoridated 31 sulfate 31 prevent tooth decay 31 chloramines 30 arsenic 30 filtration 30 contaminant 30 chlorinated solvents 30 toxicants 30 water 30 nitrates 30 Enriched uranium 30 polluted groundwater 30 chlorides 30 dangers 30 iodide 30 chloramine 30 magnesium 30 CDPHE 30 fluoridated water 30 toxicity 30 Iodine 30 Acrylamide 30 hydrofluoric acid 29 hormone disrupting 29 Reprocessing 29 dangerously 29 contaminants 29 gasified 29 atomic 29 chlorinate 29 strontium 29 nuclear fission 29 wastewater treatment 29 salts 29 fission 29 Water Treatment Plant 29 harmful effects 29 citric acid