Related by context. Frequent words. (Click for all words.) 63 defoliant Agent Orange 58 defoliant 53 defoliants 49 Vietnam 48 Agent Orange 48 Vietnam War 48 Khe Sahn 47 depleted uranium munitions 47 depleted uranium DU 47 Paraquat 45 Chemical Warfare 45 dieldrin 44 My Lai Massacre 44 chemical 44 VietNam 44 sodium fluoride 44 Methyl bromide 43 dioxin contaminated 43 Hydrogen sulfide 43 defoliate 43 chlordane 43 napalm 43 herbicides 43 Agent Orange exposure 43 Thailand Cambodia Laos 42 organophosphates 42 mold fungi 42 TCDD 42 microscopic worms 42 Vietcong 42 phosphine 42 herbicide 42 Depleted Uranium 42 peroxides 42 PCBs polychlorinated biphenyls 42 Diethylene glycol 42 toxicant 42 Cluster munitions 41 Phenol 41 Viet Cong 41 suspected carcinogen 41 carbon tetrachloride 41 Quang Tri Province 41 solvents 41 Toxic chemicals 41 carcinogenic substances 41 corrosives 41 chemicals 41 microbial pathogens 40 Rotenone 40 mercury PCBs 40 potentially carcinogenic 40 Vietnam Laos Cambodia 40 benzoic acid 40 carcinogenic chemicals 40 Indochina 40 dioxin 40 Wheat gluten 40 Bacterium 40 Qarmat Ali 40 Agent Orange Dioxin 40 sodium dichromate 40 Toluene 40 benzo pyrene 39 toxic 39 toxic solvents 39 Malathion 39 lindane 39 chlorinated solvents 39 cleaning solvents 39 Lindane 39 organic solvents 39 poisonous chemicals 39 contaminant 39 Dioxin 39 polychlorinated biphenyls PCBs 39 Vietnam Mekong Delta 39 trichlorethylene TCE 39 pyrethrins 39 Mekong Delta 39 Cam Ranh Bay 39 bioaccumulation 39 Swift Boats 39 Cu Chi 39 neurotoxins 39 funguses 39 acute toxicity 39 inorganic arsenic 39 sludges 38 Dioxins 38 sarin nerve gas 38 Enterococcus 38 Diesel exhaust 38 named Operation Anfal 38 rebellious Kurds 38 Bien Hoa 38 arsenic concentrations 38 acrolein 38 concentrations 38 Contaminant 38 Persian Gulf War