Related by context. Frequent words. (Click for all words.) 49 toxic fumes 48 lung disease 47 lung ailments 46 soot 46 asbestos fibers 46 asthma bronchitis 45 asbestos 45 inhaling smoke 45 toxins 44 noxious gases 44 respiratory ailments 44 noxious fumes 44 harmful gases 43 asbestos exposure 43 pet dander 42 toxic gases 42 skin irritations 42 acid rain 42 lungs 42 poisonous chemicals 42 skin ulcers 41 toxic 41 cigarette smoke 41 Dioxins 41 ash 41 respiratory illnesses 41 sarcoidosis 41 toxic substances 41 lung diseases 40 fungal spores 40 exhaust fumes 40 sooty 40 toxic chemicals 40 mold spores 40 asthma allergies 39 diesel fumes 39 asbestos contamination 39 lung 39 Soot 39 dust 39 secondhand smoke 39 carcinogens 39 hazards 38 respiratory illness 38 fumes 38 toxic pollutants 38 hazardous chemicals 38 bird droppings 38 debris 38 Asbestos 38 smoke 38 Sulfur dioxide 38 silicosis 37 harmful chemicals 37 asbestosis 37 respiratory 37 pollutants 37 mildew 37 aerosolized 37 polycyclic aromatic hydrocarbons 37 sulfur dioxide 37 insect infestations 37 Emphysema 37 suffocation 37 germs 37 permanent scarring 37 rotting wood 36 Cigarette smoke 36 harmful toxins 36 respiratory diseases 36 breathing difficulties 36 pigeon droppings 36 Pollutants 36 harmful substances 36 asthma 36 chronic lung 36 lung infections 36 lung ailment 36 contaminants 36 Bacterial meningitis 36 twin towers collapsed 36 inhaling fumes 36 itchy eyes 36 asphyxiation 36 nose bleeds 36 inhaling 36 Toxins 35 poisonous gases 35 pulmonary disease 35 Thick smoke 35 combustible materials 35 hydrogen cyanide 35 sawdust 35 throat irritation 35 vapors 35 glass shards 35 inhalation 35 sulfuric 35 harmful pollutants 35 pollution 35 internal bleeding