Related by context. Frequent words. (Click for all words.) 66 disinfection byproducts 63 E coli bacteria 63 Hydrogen sulfide 63 harmful contaminants 62 methyl mercury 62 chlordane 62 acrolein 62 inorganic arsenic 61 toxicants 61 carbon tetrachloride 61 contaminants 61 contaminant 61 coliforms 61 PCBs polychlorinated biphenyls 61 dieldrin 60 toxin 60 suspected carcinogen 59 algal bloom 59 furan 59 toxins 59 polychlorinated biphenyls PCBs 59 polycyclic aromatic hydrocarbons PAHs 59 enterococcus 59 endocrine disrupters 59 toxic algae blooms 59 fecal coliform bacteria 58 enterococci 58 endocrine disruptor 58 pollutants 58 cyanobacteria 58 potent neurotoxin 58 #,# dioxane 58 tetrachlorethylene 58 Cyanobacteria 57 endocrine disrupting chemicals 57 microscopic algae 57 deplete oxygen 57 oestrogens 57 trihalomethanes 57 chloramine 57 sulphates 57 carcinogenic chemicals 57 organophosphate pesticides 57 Algae blooms 57 polybrominated diphenyl ethers 56 fecal coliform 56 naturally occurring bacteria 56 chlorinated solvents 56 nitrates 56 toxic algae bloom 56 PAHs 56 furans 56 phosphine 56 endocrine disruption 56 toxic pollutants 56 polycyclic aromatic hydrocarbons 56 toxic algae 56 filter feeders 56 Dioxins 56 catechin 56 dissolved oxygen levels 56 dioxins 56 carcinogenic substances 55 airborne toxins 55 trichlorethylene TCE 55 arsenic 55 pathogenic organisms 55 hydrogen sulphide 55 malachite green 55 nitrobenzene 55 harmful algal blooms 55 neurotoxin 55 pollutant 55 harmful toxins 55 harmful pathogens 55 chemicals 55 intersex fish 55 aflatoxins 55 algal blooms 55 flame retardant chemicals 55 aquatic organisms 55 Triclosan 54 petroleum hydrocarbons 54 endotoxins 54 acute toxicity 54 pyrethroids 54 algae 54 pollutants emitted 54 toxic chemicals 54 endocrine disruptors 54 mercury arsenic 54 toxic byproducts 54 arsenic mercury 54 Sulfur dioxide 54 serum calcium 54 chloramines 54 domoic acid 54 naturally occurring substance 54 E. coli bacteria 54 fecal bacteria 54 tetrodotoxin