Related by context. Frequent words. (Click for all words.) 43 faulty furnace 42 spontaneous combustion 42 faulty heater 42 Careless smoking 41 John Bresland 41 Harold Gehman 40 Rostekhnadzor 39 Faulty wiring 39 discarded cigarette 39 smoldering cigarette 38 Fred H. Bartlit 38 Hydrogen sulfide 38 Chemical Safety 38 lax supervision 37 propane leak 37 corroded pipe 37 Vladimir Markin 37 NTSB 37 Toxic fumes 37 lax oversight 37 flammable vapors 37 faulty electrical wiring 37 corroded pipes 36 Bresland 36 Accident Investigation Board 36 Maseth death 36 Zoltan Bakonyi 36 abiotic 36 Darby Mine 36 Alexander Bastrykin 36 inhaling carbon monoxide 36 Stephen F. Sundlof 36 Xinxing mine 35 Fire Marshal Office 35 Yuzhkuzbassugol 35 Monegan firing 35 Jeff Gillenwater 35 combustible dust 35 electrical malfunction 35 Deepwater rig 34 highly combustible methane 34 Raspadskaya 34 Gene Kitts 34 polluting groundwater 34 Zurolo 34 Saeed Mortazavi 34 Zaccard 34 creosote buildup 34 ice damming 34 Smoldering 34 Radioactive waste 34 carbon monoxide leak 34 isomerization unit 34 faulty wiring 34 Deepwater Horizon blowout 34 unattended candle 34 Sheptor 34 False alarms 34 Kleen Energy 33 Gofman 33 decaying vegetation 33 fire marshal 33 unvented 33 CSB 33 gallon propane tank 33 Ulyanovskaya mine 33 Overheated 33 W.Va. mine 33 Arson 33 Sago 33 writer Suzanne Gamboa 32 spokeswoman Amy Louviere 32 fungal pathogen 32 Hantavirus 32 Amanda Eamich spokeswoman 32 Imperial Sugar Co. 32 Sulfur dioxide 32 Carbon monoxide poisoning 32 Ticman 32 Meth lab 32 Henry Hou 32 oily rags 32 incomplete combustion 32 Flammable 32 Michael Gansas 32 pest infestation 32 fire marshall 32 corrosives 32 Electrical wiring 32 Ammonia leak 32 contaminate drinking 31 Understaffing 31 offshore drilling rig Deepwater 31 Deepwater Horizon 31 writer Daisy Nguyen 31 overmedication 31 chimney flue 31 flammable 31 AP IMPACT Fed'l 31 Investigative Committee 31 Birth defects