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(Click for frequent words.) 72 smokestacks 56 brick smokestack 55 #ft chimney 54 chimney 54 exhaust stacks 53 chimney stack 52 tailpipe gases 52 chimneys 52 chimney stacks 51 cooling tower 48 chimneys belching 47 cooling towers 47 silo 47 coal fired 46 coke ovens 46 brick chimney 46 Hatfield Ferry 46 mercury emitted 46 smokestack scrubbers 46 Karn Weadock 46 windmill 45 towering smokestacks 45 Zip Feed 45 soot belching 45 billowing plume 45 Akron Airdock 45 Asarco smelter 45 Condit Dam 45 spire 45 wind turbine towers 45 belches smoke 44 Kinzua Viaduct 44 smoke belched 44 sulfuric acid mist 44 Milltown Dam 44 megawatt pulverized coal 44 smoke belching 44 sulfur dioxide 44 lime kiln 44 install scrubbers 44 belched smoke 44 HoltraChem 44 smokestack industries 43 coke oven 43 incinerator 43 grain elevator 43 Marmot Dam 43 bur oak tree 43 soot stained 43 smoke plumes 43 Meredosia Ill. 43 slag heap 43 paddlewheels 43 gypsum byproduct 43 gasified coal 43 tower 43 Nabisco factory 42 Sponge Rubber 42 HO Oats 42 waterwheel 42 baghouse 42 Brayton Point 42 windmills 42 plume 42 church steeple 42 sulfur dioxide pollution 42 WH Sammis 42 emit sulfur dioxide 42 gob pile 42 brick edifice 42 fireplace chimney 42 ash 42 Lakeview Generating Station 42 statehouse dome 42 landfill 42 rusted pipes 42 Elwha Dam 42 sooty 42 acrid smoke billowing 42 Smokestacks 42 Norlite 42 Markles Flats 42 Letart Falls 42 steam boiler 42 manure lagoons 41 boiler 41 steeple 41 whirling blades 41 WTC skyscraper 41 train trestle 41 furnaces 41 turbine 41 sulfur dioxide emissions 41 trash incinerator 41 granite obelisk 41 loud hissing 41 belching smoke 41 boilers 41 noxious gasses 41 fieldstone foundation 41 turbines 41 church steeples 41 unlined landfill 41 Prunerov II 41 CO -2 41 Clairton Works 41 Embrey Dam 41 clouds billow 41 SunCoke 41 rotting timbers 41 Taum Sauk hydroelectric 41 cow flatulence 41 molten slag 41 skyscraper 41 noxious odors 41 Tonawanda Coke 41 Clifty Creek 41 cupola 41 icicle 41 lattice towers 41 crane 41 rough hewn logs 41 Mount Merapi spews 41 megawatt coal gasification 41 coal gasification plant 41 creosote soaked 40 Shasta Bally 40 Astoria Column 40 marble facade 40 defunct Bethlehem Steel 40 stockade fence 40 Cohoes Falls 40 cement kiln 40 sulfur trioxide 40 Ravenna Army Ammunition 40 turbine blades 40 hulk 40 Countywide landfill 40 billowing plumes 40 Sinclair meatpacking plant 40 millrace 40 smokestack pollutants 40 vapor 40 stucco facade 40 granite monolith 40 glowed orange 40 tailings pile 40 cathedral spire 40 smokestacks belching 40 pine timbers 40 #ft #m [001] 40 soot 40 particulate emissions 40 Chemetco 40 Mount Trashmore 40 Bethlehem Steel 40 Grandpa Knob 40 iron girders 40 belching 40 railyard 40 concrete abutments 40 tailpipe exhaust 40 rusted barbed wire 40 trestle bridge 40 steam billowed 40 Particulate pollution 40 Mohave Generating Station 40 Generating Plant 40 Kammer Mitchell 40 flaming embers 40 fine particulate pollution 40 Edwardsport Ind. 40 synthetic gypsum 40 scrubber 40 furnace 40 spew pollutants 40 sticky ooze 40 obnoxious odors 40 tall granite obelisk 40 Douglas fir beams 40 minaret 40 VOC Volatile Organic Compounds 40 sulfur dioxide mercury 39 wrecking ball 39 watertower 39 fireboxes 39 gasometers 39 Smoke pours 39 Nanticoke Generating Station 39 gallon propane tank 39 Holcim Cement 39 superfund cleanup 39 wooden timbers 39 ductwork 39 Sani Dairy 39 Smoke billowing 39 smokestack emissions 39 wind turbines 39 Billowing clouds 39 wind turbine 39 WPPSS 39 garbage incinerators 39 mercury sulfur dioxide 39 airship hangar 39 thermal oxidizer 39 unpleasant smell 39 steel trusses 39 gob piles 39 billowing smoke 39 subway grate 39 clapboards 39 coal slurry impoundment 39 rusting hulk 39 towering chimneys 39 steel girder 39 pollutant 39 dirigible 39 baghouses 39 meteorological tower 39 flue gasses 39 steam boilers 39 wooden palisade 39 grainery 39 Farmstead Foods 39 Burrard Thermal 39 firebrick 39 hazardous waste incinerator 39 flue gases 39 windmill blades 39 sulfur dioxides 39 Maximum Achievable Control 39 Dillsboro Dam 39 windowless hulk 39 towers 39 flickering shadows 39 railroad tracks 39 clouds billowing 39 foremast 39 spiral stairway 39 rotting stinking 39 discharger 39 particulate matter 39 lime kilns 39 Carrie Furnace 39 Squaw Creek Mine 39 tailings piles 39 slag heaps 39 combustion gases 39 air pollutants emitted 39 Spreckels Sugar 39 AEP Kammer Mitchell 39 #ft tall [001] 39 Clairton Coke Works 39 Sulfur dioxide 39 wooden trusses 39 Sakonnet River Bridge 39 Contaminated groundwater 39 gantry crane 39 inhale fumes 39 pollution 39 turbine blade 39 Technology MACT 39 derrick 39 Ballville Dam 39 Spelter 38 paddlewheel 38 digester tanks 38 scaffoldings 38 Shippingport 38 Marjol 38 Propane tanks 38 Thick smoke 38 truss bridge 38 zinc smelting plant 38 blowdown drum 38 craneway 38 nitrogen oxide sulfur dioxide 38 buildings 38 Frenchtown mill 38 Sidney Lanier Bridge 38 pluming 38 earthen dike 38 particulate matter soot 38 smoke 38 particulates 38 Hatchet Ridge 38 orange orb 38 flue liner 38 HCFC #b 38 PGE Boardman 38 rusted rebar 38 sulfur dioxide nitrogen oxide 38 blimp hangar 38 smoke billow 38 stone hearth 38 pulper 38 belching steam 38 blowdown stack 38 Domino Sugar 38 creosote 38 skyline 38 wooden pilings 38 Comanche Generating Station 38 canvas awning 38 furnance 38 asbestos 38 Survivors Staircase 38 granite pedestal 38 residue treater 38 obelisk 38 polluter 38 wood pilings 38 Fairless Works 38 Touchdown Jesus statue 38 train trestles 38 Yongbyon plutonium reprocessing 38 San Onofre Nuclear 38 welding sparks 38 earthy smell 38 Patrick Cudahy meatpacking 38 Groundwater contamination 38 earthen walls 38 Asbestos removal 38 AEP Mountaineer 38 Jamestown Verrazzano Bridge 38 spiers 38 plumes 38 Bethlehem Steel Corp. 38 brownish haze 38 Wrecking crews 38 barnlike structure 38 foul smelling odors 38 smokestack pollution 38 WH Sammis plant 38 locomotive 38 Linotype machines 38 Woonasquatucket River 38 Prunerov 38 vapor cloud 38 tainted vermiculite 38 marble edifice 38 whaleback 38 Proffit Mountain 38 supertall 38 factory smokestacks 38 concrete sarcophagus 38 coalfired 38 acetylene tank 38 hazardous waste landfill 38 HFC# 38 fly ash 38 Zug Island 38 O'Shaughnessy Dam 38 smoke pluming 38 eyesore 38 pollutants 38 hydrocarbon vapors 38 brick façade 38 ASHTA 38 pier jutting 38 cupola furnace 38 Hayden Flour Mill 38 thunderhead 38 sandstone boulder 38 odorous gases 38 barbecue briquettes 38 Gustav Eiffel 38 open hearth furnaces 38 brick ovens 38 Wind turbines 38 Bleachery 38 steel superstructure 38 Railroad caboose 38 Sulfur dioxide pollution 38 polluted groundwater 37 hazardous vapors 37 Zonolite Mountain 37 poisonous gasses 37 crane hoisted 37 Fiberglas Tower 37 automobile tailpipes 37 rhythmic whoosh whoosh whoosh 37 marble stairways 37 steampipe 37 gray haze 37 Alcoa Warrick 37 Danskammer 37 Powerton 37 coalfired power 37 Taconite Harbor 37 densest cluster 37 glows orange 37 coke oven batteries 37 chlorinated solvent 37 forested ridge 37 coal 37 aeration tanks 37 flashboards 37 slag piles 37 steeplejack 37 Eastalco 37 billowing clouds 37 WyGen II 37 AMPGS 37 McMahan Furniture 37 South Bend Lathe 37 PCB contaminated sediments 37 Shieldalloy 37 methane digester 37 suction hose 37 sulfur dioxide nitrous oxide 37 emissons 37 VIM Recycling 37 concrete casks 37 HPOWER 37 nitrogen oxide NOX 37 cupola atop 37 megawatt supercritical 37 reactor Tohoku Electric 37 flue pipe 37 hog barns 37 acrid scent 37 Andre Borshch owner 37 kilowatt turbine 37 railroad roundhouse 37 Highwood Generating Station 37 Halaco 37 stone archway 37 monofill 37 Power Plant 37 campanile 37 Jennifer Feyerherm 37 barge tow 37 sulfur dioxide particulates 37 Generating Station 37 noxious odor 37 manure pits 37 Firefighters hosed 37 Minntac 37 clamshell dredge 37 hatchway 37 Fordham Spire 37 Toxic Release Inventory 37 twin steeples 37 Dansbury Depot 37 Greensulate 37 tailings basin 37 exhaust duct 37 Sulphur dioxide 37 chilled ammonia 37 scrubbers 37 St. Helens belched 37 lenticular clouds 37 installing scrubbers 37 transite 37 railroad depot 37 milking barn 37 CO -2 emissions 37 belfry 37 florescent light 37 kiln dust 37 LaFarge Cement 37 WASTEC 37 Jacobsville neighborhood 37 straw bale walls 37 SO2 emissions 37 smog soot 37 biomass gasifier 37 gray smoke billowed 37 grayish ash 37 candle flame 37 polluted soils 37 groundwater plume 37 Nitrogen oxide emissions 37 gable vent 37 Evraz Rocky Mountain 37 Art Deco skyscraper 37 ironmaking 37 megafarm 37 culm 37 Tideflats 37 ridgelines 37 Mitchel Alvo 37 lawn ornament 37 Minsi Trail Bridge 37 toxic vapors 37 Waxdale 37 carferry 37 towering cranes 37 quonset 37 invisible odorless tasteless 37 Demolition crews 37 Ottauquechee River 37 towering grain elevator 37 decorative cornice 37 Thick plumes 37 Facemate 37 fluidized bed boiler 37 Copleman 37 squirrel nest 37 sulfur gases 37 elevator shaft 37 Whiteco 37 Conoco Phillips refinery 37 #ft crane 37 Vermont Yankee Nuclear 37 incineration 37 girders 37 building 37 Quinebaug River 37 Bayou Verdine 37 Dainty Dot 37 Woolworth Building 37 ton girder 37 cow belches 37 creosote pilings 37 Burning charcoal 37 erector set 37 propane torches 37 bell tower 37 boiler flue 37 molten steel 37 neon tubes 37 rimrock 37 sulfur dioxide nitrogen oxides 37 InterRoyal Mill 37 blacksmith forges squat 37 melted siding 36 Davis Besse plant 36 scaffolding 36 particulate matter emitted 36 Johnie Broiler 36 sugarhouse 36 stoker coal 36 sulfur dioxide pollutant 36 acrid stench 36 Superfund site 36 vermiculite ore 36 Williamsburgh Savings Bank 36 penstock 36 Leland Olds 36 Trashmore 36 charcoal kilns 36 filament bulb 36 sulfurous gases 36 particulate 36 sludge incinerator 36 CAFO 36 sulfur dioxide SO2 emissions 36 flammable hydrocarbons 36 Curtis Specialty Papers 36 carbon belching 36 granite outcropping 36 thick acrid smoke 36 Edwardsport 36 NiMo 36 fossil fuel 36 Radioactive waste 36 Great Lakes steamships 36 decomissioned 36 gypsum drywall 36 unlined landfills 36 conical dome 36 navigational beacon 36 Burning fossil fuels 36 Tuojiang River 36 beehive burners 36 air pollution 36 pulverizer 36 Spaulding Fibre 36 Optiwind 36 acrid odor 36 plant 36 reheat furnace 36 Romic Environmental Technologies 36 Palisades Nuclear 36 Dig tunnels 36 mercury 36 Boise Cascade mill 36 Dillsboro dam 36 breathable dust 36 Belews Creek 36 Essroc 36 regenerative thermal oxidizer 36 emitting greenhouse gases 36 manganese fumes 36 incandescent lightbulb 36 Springdale Pit 36 headhouse 36 cinder cone 36 shaped pinatas 36 wood trusses 36 Wyodak 36 mercury emissions 36 hog confinement 36 cottonwood trees 36 Worker dies 36 biomass combustion 36 sequester CO2 36 gnarled oak 36 wind vane 36 pine bough 36 powdery residue 36 transformer 36 railroad trestle 36 contaminated groundwater 36 gasholder 36 gambrel style 36 asbestos contamination 36 Escambia Treating 36 trapping beavers 36 smoke billows 36 LTV Steel 36 tall obelisk 36 ReVenture 36 PCBs polychlorinated biphenyls 36 camphor tree 36 benzene vapors 36 copper beech tree 36 sulfur dioxide particulate matter 36 cranes 36 Amoco refinery 36 railroad switchyard 36 windmill turbines 36 Coltsville 36 responded Understood Atlasjet 36 giant sequoia tree 36 airborne toxins 36 cinder block wall 36 smog forming pollutants 36 kiln 36 chimney flue 36 spinning blades 36 disagreeable odor 36 Loveridge Mine 36 timber trusses 36 gasworks 36 osprey nest 36 dangling wires 36 digestor 36 Roebling Steel 36 acetylene torch 36 Cosmopolis pulp mill 36 abandoned railroad trestle 36 belching exhaust 36 Peeling paint 36 limestone slabs 36 fence encloses 36 LTV Steel Mining 36 lighted spire 36 waterless toilet 36 charred timbers 36 harmful gases 36 sequester carbon dioxide emissions 36 moat drawbridge 36 smoke wafts 36 zinc smelting 36 wooden flume 36 copper smelting 36 rotary kilns 36 RE Burger 36 VOCs Volatile Organic Compounds 36 Odorite 36 rotating blades 36 mercury pollution 36 dredged sediment 36 Fenholloway River 36 Ventilation ducts 36 Urbaszewski 36 Zonolite insulation 36 Bevatron 36 Behr Dayton 36 Wheland Foundry 36 pellet boiler 36 orange fireballs 36 Rubbertown 36 corrosive salts 36 Doe Run smelter 36 ceremonial plunger 36 Ferris wheel 36 Caterpillar excavator 36 crystalline silica 36 emitted 36 Zalev 36 noxious gases 36 open hearth furnace 36 integrates bio degradable 36 Acrid smoke 36 Mountaintop removal mining 36 billowing sails 36 mulch pile 36 scrubber sludge 36 Btus 36 tsunamis recur 36 emit GHGs 36 Bunker Hill Bridge 36 Parachute Jump 36 granite monument 36 gasometer 36 trackhoe 36 oil derricks 36 fluorescent light bulb 36 forest thinnings 36 airship 36 brick facade 36 towering geyser 36 Techneglas 36 photovoltaic solar arrays 36 Embarcadero Freeway 36 flue gas 36 Sitgreaves Street 36 fluorescent tube 36 Huge plumes 36 trench collapses 36 lungs Setree 36 outfall pipe 36 Endicott Forging 36 Particulate emissions 36 fetid odor 36 pump jacks 36 blast furnace 36 Coking 36 Cow manure 36 intake vents 36 gambrel roof 36 hull plating 36 Grzegorz Pawlaszek head 35 Penobscot Narrows Bridge 35 Little Mermaid statue 35 ornate facade 35 Francendese 35 excavator bucket 35 TOONE Tenn. 35 Fort St. Vrain 35 sodium hydrosulfite 35 steel hulled vessel 35 Kokosing River 35 heater treater 35 gypsum mines 35 inflatable rat 35 Carbon dioxide CO2 35 combustible liquids 35 tinsel ornaments 35 lightning arrestor 35 smoky odor 35 charcoal briquette 35 combustion byproducts 35 foul smelling sludge 35 3m #ft 35 exhaust pipe 35 mercury vapors 35 HELENS Wash. Mount 35 billowing 35 railroad viaduct 35 bamboo scaffolding 35 sulfur oxide SOx 35 Fort Gratiot Lighthouse 35 TCE vapors 35 exhaust vent 35 coal tar 35 USX Tower 35 culm banks 35 Glen Gery 35 Seattle Space Needle 35 tailpipe 35 Airdock 35 Guatemala sinkhole 35 Tree limbs 35 baling machine 35 desulfurization unit 35 Veniaminof 35 Contaminated soil 35 Aerial Lift Bridge 35 friable asbestos 35 rotary kiln 35 whitish gray 35 pulpmill 35 diesel fumes 35 cement kilns 35 Atomic Bomb Dome 35 Boiler MACT 35 unburnt fuel 35 plywood sheathing 35 slurry ponds 35 NF3 35 sunken barge 35 smog forming pollution 35 gases vapors 35 candle wick 35 window sashes 35 Kleen Energy plant 35 acrid aroma 35 Steam Plant 35 skyscrapers 35 AES Cayuga 35 coal ash 35 mercury polluter 35 marble obelisk 35 oat hulls 35 shingled roof 35 Velsicol 35 Edge Moor 35 particulate soot 35 crippled Fukushima Daiichi Nuclear 35 Teeple Barn 35 torching treetops 35 steeplejacks 35 sagging porches 35 Sunjiawan colliery 35 belching smokestacks 35 Yaquina Bay Bridge 35 acid rain 35 icicles dangling 35 Volatile Organic Compounds VOC 35 sycamore tree 35 storey skyscraper 35 #-#/#-story 35 Firefighters douse 35 bubbling fluidized bed 35 pigeon feces 35 removing bolted flange 35 tannery 35 mushroom cloud 35 brickyard 35 Wallula Wash. 35 dredging PCBs 35 sulfurous steam 35 rotting hulk 35 reed grass 35 Milltown Reservoir 35 San Gorgonio Inn 35 Sherwin Alumina 35 noxious smells 35 Coxcomb Hill 35 kilns 35 GenPower 35 downwind 35 neoclassical facade 35 fiberglass resin 35 pollutants emitted 35 pressurized cylinders 35 noxious smell 35 Redpath Sugar 35 scorched hulk 35 flagpole 35 wainscoted walls 35 Combustion Engineering 35 MACT standards 35 emit carbon monoxide 35 pelletizer 35 Boji Tower 35 Charbert 35 sooty particles 35 lightning arrestors 35 ladle metallurgy 35 Maytag washing machine 35 propane burners 35 carcinogenic fumes 35 buildng 35 hazardous waste dump 35 Menasha Utilities 35 wood pulping 35 Molten metal 35 debri 35 containerboard mill 35 Bowersock Dam 35 seismically unsound 35 padlocked doors 35 roosting pigeons 35 Pinon Pine 35 Sloss Furnace 35 zeppelin 35 Plainwell Dam 35 nitrogen oxides emitted 35 ridgeline 35 flames billowed 35 Evraz Claymont Steel 35 asbestos fibers 35 crumbling plaster 35 whoosh whoosh whoosh 35 Satsop 35 Celotex 35 Cows graze 35 Piketon uranium enrichment 35 tailpipes smokestacks 35 candle flickers 35 dryosaurus 35 granite facade 35 limestone boulders 35 garbage heap 35 soda fountain nozzles 35 clocktower 35 steel beams 35 mountain ridge 35 blast furnaces 35 Kingsnorth 35 marble pedestal 35 jagged cliff 35 timber pilings 35 curing ovens 35 halide lights 35 cardboard compactor 35 sequoia tree 35 Wind turbine 35 Soufriere Hills 35 ash impoundments 35 PPG Natrium 35 Stimson Lumber 35 terra cotta facade 35 locust trees 35 fluidized bed combustion 35 vermiculite insulation 35 hand hewn beams 35 Santan Mountains 35 asbestos fireproofing 35 cottonwood tree 35 embers ignited 35 glowed eerily 35 Vikki Michalski spokeswoman 35 noxious vapors 35 sluiceway 35 snarling dragon snout 35 Fiterman Hall 35 steam generators 35 BorgWarner Automotive 35 gargoyles 35 Atomium 35 Diestelhorst Bridge 35 Powerful gusts 35 diagrid 35 steel latticework 35 Fostoria Glass 35 sky scraper 35 woodframe 35 orangey yellow 35 expose coal seams 35 steel sheeting 35 smog 35 contaminated soil 35 molten aluminum 35 canyon rim 35 helix shaped 35 entranceway 35 gable vents 35 crenellations 35 Millstone Nuclear 35 #/#-ton [002] 35 rotten eggs smell 35 OWBs 35 Tontitown landfill 35 brick oven 35 photo voltaic solar panels 35 pine logs 35 sunken sailboat 35 BP Whiting Refinery 35 Hogback Mountain 35 Yaquina Head Lighthouse 35 #,# butadiene 35 Overgrown weeds 35 hackberry tree 35 blowdown drums 35 wooden trestles 35 leafless branches 35 fine particle pollution 35 putrid odor 35 carcinogenic fibers 35 Pulverized coal 35 Hungry Horse Dam 35 nauseating odor 35 Maumee River 35 toxic gasses 35 ozone depleting substance 35 electrical transformer 35 slag pile 35 chimney pots 35 emit pollutants 35 louvered windows 35 Toronto CN Tower 35 gaseous pollutants 35 digester 35 Smoke billowed 35 neon tubing 35 Lempster Mountain 35 woolen mill 35 Saginaw Malleable Iron 35 wastewater pretreatment 35 pilings 35 sandstone slab 35 molten alloy 35 sandalwood incense 35 Horsetooth Rock 35 nonhistoric 35 nitrogen oxide NOx emissions 35 fluorescent bulb 35 Unistress 35 facade 35 garbage incinerator 35 livestock confinements 35 rotted wood