Related by context. Frequent words. (Click for all words.) 55 butter flavoring 53 lung ailment 51 diacetyl 50 secondhand tobacco 50 bronchiolitis obliterans 49 noxious chemicals 49 choking hazards 48 toxicants 48 toxins 47 carcinogenic chemicals 47 hazardous fumes 46 lung ailments 46 carcinogens 45 endotoxins 45 microwave popcorn 45 choking hazard 45 toxic chemicals 45 suspected carcinogen 44 silica dust 44 toxic fumes 44 thyroid glands 44 toxic vapors 44 salmonella infection 44 accidental ingestion 43 contamination 43 arsenic cadmium 43 Cigarette smoke 43 radiation exposure 43 formaldehyde fumes 43 tetrachlorethylene 43 harmful chemicals 43 carcinogen 43 harmful toxins 43 occupational exposures 43 chemical vapors 43 preservative thimerosal 43 lung disease 43 entrapment hazard 43 ammonia fumes 43 harmful contaminants 42 Hydrogen sulfide 42 smoky smell 42 Acrylamide 42 asbestos 42 contaminants 42 hazards 42 mold infestation 42 trichlorethylene TCE 42 biohazards 41 botulism poisoning 41 toxic substances 41 cigarette smoke 41 secondhand smoke 41 ionizing radiation 41 allergies 41 hazardous chemicals 41 asbestos contamination 41 Reye syndrome 41 PFOA 41 allergen 40 groundwater contamination 40 fishy smell 40 dental cavities 40 secondhand smoke exposure 40 disinfection byproducts 40 methylene chloride 40 bisphenol A. 40 foul odors 40 hexavalent chromium 40 Salmonella poisoning 40 allergic reactions 40 potentially harmful 40 allergens 40 potentially hazardous 40 toxicity 40 peanut allergy 40 cat feces 40 dental amalgam 40 airborne allergens 40 Salmonella bacteria 40 naturally occurring radioactive 40 poisonous fumes 40 indoor allergens 40 anaphylactic reactions 40 aflatoxins 40 toxic 40 NIOSH 40 nitrosamines 40 chlorine leak 40 lung scarring 39 unpleasant odor 39 polluted groundwater 39 harmful pathogens 39 diesel exhaust 39 noxious fumes 39 aggravate asthma 39 intracerebral hemorrhage 39 rotten egg odor 39 gasoline vapors 39 asbestos exposure 39 noxious odor