Related by context. Frequent words. (Click for all words.) 68 carbon tetrachloride 66 PCBs polychlorinated biphenyls 64 chlorinated solvents 62 chlordane 61 dieldrin 61 suspected carcinogen 61 trichlorethylene TCE 61 tetrachlorethylene 60 phosphine 60 disinfection byproducts 60 Nitrates 60 endocrine disruptor 60 Sulfate 59 Triclosan 59 polychlorinated biphenyls PCBs 59 polybrominated diphenyl ethers 59 harmful contaminants 59 carcinogenic chemicals 59 arsenic mercury 59 furan 59 Hydrogen sulfide 59 endocrine disrupting chemicals 58 trichlorethylene 58 Nitrate 58 Toluene 58 Phenol 57 arsenic 57 contaminant 57 carcinogen 57 carcinogenic 57 Residues 57 mg l 57 contaminants 57 corrosives 57 potentially carcinogenic 57 methylene chloride 57 coliforms 56 Acrylamide 56 furans 56 hexavalent chromium 56 carbaryl 56 toxic 56 lindane 56 perchlorethylene 56 industrial effluents 55 diazinon 55 organophosphate 55 sludges 55 endotoxins 55 #,# dioxane 55 dioxins 55 xylene 55 acrolein 55 chromium 55 endocrine disruptors 55 exceedances 55 harmful chemicals 55 hexane 55 nitrous oxides 55 toxic chemicals 55 chemicals 54 polycyclic aromatic hydrocarbons PAHs 54 Malathion 54 solvents 54 naturally occurring radioactive 54 toxicants 54 hazardous substances 54 exceedance 54 naphthalene 54 pollutant 54 carcinogens 54 hormone disrupting 54 iron manganese 54 bromate 54 lead mercury cadmium 54 PBDE 54 toxicity 54 Solvents 54 Bromine 54 toxic substances 54 Toxic chemicals 53 harmful substances 53 endocrine disruption 53 oxalic acid 53 carcinogenic substances 53 herbicides pesticides 53 organophosphate pesticides 53 leachable 53 vinyl chloride 53 PCBs 53 flouride 53 potent neurotoxin 53 hazardous chemicals 53 Contaminants 53 arsenic cadmium 53 mercury arsenic 53 animal dander 53 residues 53 hydrogen chloride 53 contamination 53 human carcinogen