Related by context. Frequent words. (Click for all words.) 64 CFCs 61 chlorofluorocarbons CFCs 60 chlorofluorocarbons 59 ozone depleting chemicals 57 ozone depleting 56 Methyl bromide 55 halogenated 54 polybrominated diphenyl ethers 54 ultraviolet UV light 54 ozone depleting substances 54 harmful toxins 53 refrigerants 53 Earth ozone layer 53 HCFCs 53 Nitrogen oxides 53 hydrofluorocarbons 52 HCFC 52 sulfur hexafluoride 52 SF6 52 harmful chemicals 52 brominated flame retardants BFRs 52 ultra violet rays 51 sulfur dioxide SO2 51 oxidising 51 respiratory irritant 51 lindane 51 hydroxyl radicals 51 HFCs 51 environmentally harmful 51 oxidizers 51 Persistent Organic Pollutants 51 dental amalgam 51 aerosol sprays 51 nitrous oxides 51 naturally occurring substance 50 Inhalers 50 stratospheric ozone 50 Triclosan 50 particulate filters 50 leaded petrol 50 Methyl iodide 49 Ultraviolet light 49 suspected carcinogen 49 aerosols 49 Freon 49 harmful ultraviolet rays 49 refrigerant 49 elemental mercury 49 RoHS Restriction 49 perchlorethylene 49 harmful ultraviolet radiation 48 greenhouse gases GHG 48 Hydrogen peroxide 48 carcinogenic chemicals 48 biocide 48 toxic solvents 48 H#O# 48 organic solvents 48 harmful substances 48 sulphates 48 dehumidifying 48 ozone depletion 48 recyclable plastics 48 potentially carcinogenic 48 hypochlorite 48 engineered nanoparticles 48 UV filters 48 potent neurotoxin 48 protective ozone layer 48 toxic pollutant 47 coolants 47 sunlamps 47 Ultraviolet radiation 47 flame retardant chemicals 47 methylene chloride 47 solvents 47 ionizer 47 fluorides 47 phosphine 47 protectants 47 Refrigerant 47 mercury cadmium 47 corrosives 47 petroleum distillates 47 environmentally friendly LED lighting 47 combustion gases 47 propellants 47 fat soluble 47 chemical compounds 47 chlorinated solvents 47 Baking soda 47 freon 47 Carbon sequestration 47 Hydrochloric acid 47 odorless colorless gas 47 nontoxic 46 carcinogenic substances 46 Carbon dioxide 46 ultra violet radiation 46 harmful 46 ionisation