The table below lists the number of OSHA-170 abstracts by keyword value. The keywords are established at the time the abstract is reviewed.

KeyWord Occurances - 100244
Cable Logging41 Cable Tray8 Cable Tv Work125
Calender18 Canal83 Cancer17
Capacitor29 Carbon Dioxide73 Carbon Disulfide9
Carbon Monoxide674 Carboxyhemoglobin114 Carburetor25
Cardiac Arrest529 Cardiovasc Disease416 Cardiovasc System738
Carpenter1597 Carpet42 Cart343
Caster26 Casting63 Casting Die10
Cathead17 Catline4 Catwalk285
Caught Between9254 Caught By5916 Caustic176
Cave-In1460 Ceiling289 Ceiling Panel51
Cellotex Material2 Cement Powder31 Cementing21
Chain1173 Chain Saw323 Chair71
Charge Bucket6 Check Valve13 Chemical1294
Chemical Burn654 Chemical Reaction441 Chemical Vapor867
Chemical Vessel22 Chest3164 Chimney62
Chipper162 Chlorine243 Chlorine Dioxide12
Chlorine Room8 Chock257 Choker97
Choker Cable18 Choker Setter99 Chrome3
Cinder Block Plant5 Circuit Breaker178 Circular Saw485
Circulatory Blockage23 Citric Acid4 Cleaning3872
Cleaning Fluid141 Clearance859 Climbing On Column42
Clogged349 Clothing1195 Clutch59
Clutch Lever6 Coal33 Coal Car7
Coal Crusher5 Coal Dust16 Coal Hopper6
Coal Silo5 Coal Tar Light Oil1 Coal Tar Pitch6
Coating Operation33 Coffer Dam14 Coke Drum14
Coke Oven19 Collapse2849 Collarbone181
Collision773 Column153 Combustible Dust137
Combustible Liquid82 Commercial Diving28 Communication1088
Communication Cable132 Communication Tower207 Communication Worker149
Compartment19 Compressed Air119 Compressed Gas40
Compressor165 Concrete1201 Concrete Beam25
Concrete Block121 Concrete Bucket15 Concrete Float23
Concrete Form Work438 Concrete Mixer80 Concrete Panel75
Concrete Pipe56 Concrete Pump48 Concrete Slab138
Concrete Truck242 Concussion2841 Conductive Apparel4
Conductive Hose5 Conduit152 Confined Space817
Construction22903 Containerized Cargo132 Control Lever204
Control Malfunction2 Contusion3884 Conveyor2112
Conveyor Belt738 Cooker52 Cooker--Pressure9
Cooling Tower29 Cord Connector48 Cord Set152
Corn55 Corn Chopper2 Corn Oil3
Corrosion26 Corrosive42 Cotter Pin15
Cotton41 Cotton Gin31 Cotton Picker6
Cough35 Counterbalance192 Cover484
Cpr663 Crane2268 Crane Ball15
Crane Block29 Crane Boom640 Crane Cab46
Crane Carriage7 Crane Counterweight34 Crane Hook120
Crane Lifting Beam18 Crane Operator297 Crane Outrigger50
Crate88 Crawl Space59 Crawler Crane86
Creosote5 Crop Shredder9 Crossarm25
Crown Block5 Crude Oil41 Crushed12428
Crusher33 Current Leakage11 Cutout Switch27
Cutout--Gaff57 Cutting And Burning410 Cyanide32
Cylinder289