[Untitled photo, possibly related to: Argentine, Kansas. Night view of the Atchison, Topeka, and Santa Fe Railroad shops and… https://www.rawpixel.com/image/12291187/photo-image-sky-smoke-lightFree Image from public domain licenseChicago, Illinois. In the roundhouse at a Chicago and Northwestern Railroad yard. Sourced from the Library of Congress. https://www.rawpixel.com/image/12291048/photo-image-person-smoke-airplaneFree Image from public domain license[Untitled photo, possibly related to: San Juan, Puerto Rico. The slum area known as El Fangitto]. Sourced from the Library… https://www.rawpixel.com/image/12264802/photo-image-cloud-plant-personFree Image from public domain licenseChicago, Illinois. An unusually heavy fog in the early afternoon. Sourced from the Library of Congress. https://www.rawpixel.com/image/12288529/photo-image-plant-person-skyFree Image from public domain license[Untitled photo, possibly related to: Jones Laughlin steel company. Pittsburgh, Pennsylvania]. Sourced from the Library of… https://www.rawpixel.com/image/12285960/photo-image-cloud-sky-smokeFree Image from public domain license[Untitled photo, possibly related to: The Bessemers "blooming" at the Jones and Laughlin Steel Company in Aliquippa… https://www.rawpixel.com/image/12262610/photo-image-person-sky-smokeFree Image from public domain licenseIn the roundhouse at Proviso Yard, Chicago and Northwestern Railroad. Chicago, Illinois. Sourced from the Library of… https://www.rawpixel.com/image/12291046/photo-image-person-smoke-public-domainFree Image from public domain licenseAir pollution background https://www.rawpixel.com/image/11560045/air-pollution-backgroundView licenseStreet in New Bedford at night during a fog. New Bedford, Massachusetts. Sourced from the Library of Congress. https://www.rawpixel.com/image/12278955/photo-image-smoke-light-roadFree Image from public domain license[Untitled photo, possibly related to: Argentine, Kansas. Night view of the Atchison, Topeka, and Santa Fe Railroad shops and… https://www.rawpixel.com/image/12291458/photo-image-smoke-light-public-domainFree Image from public domain licenseAir pollution phone wallpaper https://www.rawpixel.com/image/11560048/air-pollution-phone-wallpaperView license[Untitled photo, possibly related to: Summit (vicinity), California. Going down the mountains on the Atchison, Topeka, and… https://www.rawpixel.com/image/12293820/photo-image-cloud-sky-smokeFree Image from public domain licenseSilhouette Business People Commuter Walking Rush Hour Concept https://www.rawpixel.com/image/120790/premium-photo-image-abstract-building-businessView licenseMountain Sky Clouds Scenery Landscape Beautiful https://www.rawpixel.com/image/90708/free-photo-image-adventure-amazing-areaView licenseArgentine, Kansas. Night view of the Atchison, Topeka, and Santa Fe Railroad shops and roundhouse. Sourced from the Library… https://www.rawpixel.com/image/12291200/photo-image-person-sky-smokeFree Image from public domain license[Untitled photo, possibly related to: Opening milk cans at the United Farmers Coop Creamery in East Berkshire, Vermont].… https://www.rawpixel.com/image/12262984/photo-image-plant-person-smokeFree Image from public domain licenseSilhouette Meeting Table Office Room Window Indoor Concept https://www.rawpixel.com/image/120534/image-rawpixelcomView licenseBethlehem-Fairfield shipyards, Baltimore, Maryland. Lifting an after peak section. Sourced from the Library of Congress. https://www.rawpixel.com/image/12292938/photo-image-person-sky-lightFree Image from public domain licenseAir pollution blog banner https://www.rawpixel.com/image/11560052/air-pollution-blog-bannerView licenseChicago, Illinois. Waiting for trains in the concourse of the Union Station. Sourced from the Library of Congress. https://www.rawpixel.com/image/12290770/photo-image-person-smoke-roadFree Image from public domain licenseView of Quiraing on the Isle of Skye in Scotland https://www.rawpixel.com/image/936020/traveler-quiraingView licenseAir pollution background https://www.rawpixel.com/image/11560044/air-pollution-backgroundView licenseA foggy night in New Bedford, Massachusetts. Sourced from the Library of Congress. https://www.rawpixel.com/image/12277776/photo-image-person-sky-smokeFree Image from public domain licenseLoveland Pass, Colorado. The road leading to the pass. Sourced from the Library of Congress. https://www.rawpixel.com/image/12297546/photo-image-cloud-moon-skyFree Image from public domain licenseLighthouse on Buzzard's Bay, Mattapoisett, Massachusetts. Sourced from the Library of Congress. https://www.rawpixel.com/image/12261639/photo-image-cloud-plant-personFree Image from public domain license[Untitled photo, possibly related to: Street scene, Manchester, New Hampshire]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12254456/photo-image-sky-smoke-roadFree Image from public domain licenseAir pollution background https://www.rawpixel.com/image/11560050/air-pollution-backgroundView license[Untitled photo, possibly related to: Argentine, Kansas. Freight train about to leave the Atchison, Topeka, and Santa Fe… https://www.rawpixel.com/image/12291489/photo-image-person-smoke-lightFree Image from public domain license[Untitled photo, possibly related to: The Bessemers "blooming" at the Jones and Laughlin Steel Company in Aliquippa… https://www.rawpixel.com/image/12263543/photo-image-person-sky-smokeFree Image from public domain licenseSilhouette Business People Commuter Walking Rush Hour Concept https://www.rawpixel.com/image/118291/premium-photo-image-building-business-peopleView licenseCityscape Authentic Hindi Mountain Panorama https://www.rawpixel.com/image/90959/free-photo-image-india-architecture-asiaView licenseCityscape Authentic Hindi Mountain Panorama https://www.rawpixel.com/image/90955/free-photo-image-architecture-asia-asianView licenseBack Lit Business People Corporate Cityscape Togetherness Concept https://www.rawpixel.com/image/118215/image-rawpixelcomView license[Untitled photo, possibly related to: The Bessemers "blooming" at the Jones and Laughlin Steel Company in Aliquippa… https://www.rawpixel.com/image/12262779/photo-image-sky-smoke-technologyFree Image from public domain licenseAir pollution background https://www.rawpixel.com/image/11560054/air-pollution-backgroundView licenseSomewhere in the Persian corridor. A United States Army truck convoy carrying supplies for Russia climbing into the clouds… https://www.rawpixel.com/image/12294369/photo-image-clouds-sky-roadFree Image from public domain licenseMountain Sky Clouds Scenery Landscape Beautiful https://www.rawpixel.com/image/90719/free-photo-image-sky-adventure-amazingView licenseBusiness People Talking Connection Conversation Concept https://www.rawpixel.com/image/116584/image-rawpixelcomView licenseBusiness People Commuter City Life Walking Concept https://www.rawpixel.com/image/120677/premium-photo-image-urban-sky-abstract-back-litView license[Untitled photo, possibly related to: Chicago, Illinois. In the roundhouse at a Chicago and Northwestern Railroad yard].… https://www.rawpixel.com/image/12289935/photo-image-person-smoke-lightFree Image from public domain license[Untitled photo, possibly related to: Washington, D.C. Lincoln Memorial]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12295289/photo-image-person-moon-skyFree Image from public domain license[Untitled photo, possibly related to: Phelps Dodge refining company, El Paso, Texas. Sheets of pure copper, which had been… https://www.rawpixel.com/image/12295536/photo-image-person-smoke-public-domainFree Image from public domain licenseAir pollution background https://www.rawpixel.com/image/11560047/air-pollution-backgroundView license[Untitled photo, possibly related to: Cases of beans, wholesale grocery, San Angelo, Texas] by Russell Lee https://www.rawpixel.com/image/12170434/image-background-art-vintageFree Image from public domain license[Untitled photo, possibly related to: Jones Laughlin steel company. Pittsburgh, Pennsylvania]. Sourced from the Library of… https://www.rawpixel.com/image/12286095/photo-image-cloud-sky-smokeFree Image from public domain licenseAir pollution background https://www.rawpixel.com/image/11560046/air-pollution-backgroundView license[Untitled photo, possibly related to: Opening milk cans at the United Farmers Coop Creamery in East Berkshire, Vermont].… https://www.rawpixel.com/image/12262861/photo-image-plant-smoke-treeFree Image from public domain licenseSomewhere in the Persian corridor. A United States Army truck convoy carrying supplies for Russia going through a pass over… https://www.rawpixel.com/image/12294338/photo-image-sky-light-roadFree Image from public domain licenseCalm foggy forest sky in black and white https://www.rawpixel.com/image/3361657/premium-photo-image-bad-weather-beautiful-black-and-whiteView license[Untitled photo, possibly related to: Chicago, Illinois. In the roundhouse at a Chicago and Northwestern Railroad yard].… https://www.rawpixel.com/image/12289934/photo-image-smoke-light-roadFree Image from public domain licenseOn a foggy night in New Bedford, Massachusetts. Sourced from the Library of Congress. https://www.rawpixel.com/image/12278743/photo-image-smoke-light-roadFree Image from public domain licenseAbandoned Boat Rainy Dark Sea https://www.rawpixel.com/image/91506/free-photo-image-abandoned-backgroundView license[Untitled photo, possibly related to: Argentine, Kansas. Freight train about to leave the Atchison, Topeka, and Santa Fe… https://www.rawpixel.com/image/12291209/photo-image-person-smoke-lightFree Image from public domain licenseChicago, Illinois. In the roundhouse at a Chicago and Northwestern Railroad yard. Sourced from the Library of Congress. https://www.rawpixel.com/image/12290240/photo-image-person-smoke-lightFree Image from public domain licenseTextile mill working all night, New Bedford, Mass.. Sourced from the Library of Congress. https://www.rawpixel.com/image/12277798/photo-image-sky-smoke-lightFree Image from public domain licenseTopeka, Kansas. A general view of the smith shop of the Atchison, Topeka, and Santa Fe Railroad. Sourced from the Library of… https://www.rawpixel.com/image/12291226/photo-image-person-smoke-public-domainFree Image from public domain license[Untitled photo, possibly related to: Daniel Field, Georgia. Air Service Command. Men of a chemical unit demonstrating the… https://www.rawpixel.com/image/12296380/photo-image-person-smoke-public-domainFree Image from public domain license[Untitled photo, possibly related to: Pittsburgh, Pennsylvania]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12283216/photo-image-sky-smoke-public-domainFree Image from public domain licenseView of Helvellyn range at the Lake District in England https://www.rawpixel.com/image/935944/mountains-the-mistView license[Untitled photo, possibly related to: Phelps Dodge refining company, El Paso, Texas. Sheets of pure copper, which had been… https://www.rawpixel.com/image/12295786/photo-image-person-smoke-public-domainFree Image from public domain license[Untitled photo, possibly related to: Chicago, Illinois. An unusually heavy fog in the early afternoon]. Sourced from the… https://www.rawpixel.com/image/12290231/photo-image-person-smoke-lightFree Image from public domain licenseCloudy scene of Talisker Bay on the Isle of Skye, Scotland https://www.rawpixel.com/image/936040/clouds-over-the-seaView licensePNG Smoke swirl white monochrome. AI generated Image by rawpixel. https://www.rawpixel.com/image/13054575/png-smoke-swirl-white-monochrome-generated-image-rawpixelView license[Untitled photo, possibly related to: Argentine, Kansas. Night view of the Atchison, Topeka, and Santa Fe Railroad shops and… https://www.rawpixel.com/image/12290297/photo-image-sky-smoke-lightFree Image from public domain licenseThe Bessemers "blooming" at the Jones and Laughlin Steel Company in Aliquippa, Pennsylvania. Sourced from the Library of… https://www.rawpixel.com/image/12262699/photo-image-sky-smoke-lightFree Image from public domain license[Untitled photo, possibly related to: Gallup, New Mexico. A train on the Atchison, Topeka and Santa Fe Railroad between… https://www.rawpixel.com/image/12292267/photo-image-sky-light-public-domainFree Image from public domain licenseMountain Sky Clouds Scenery Landscape Beautiful https://www.rawpixel.com/image/90718/free-photo-image-sky-landscape-adventureView licenseMan Rear View Top Mountain Carefree Cloudscape Concept https://www.rawpixel.com/image/15577/premium-photo-image-activity-adventure-calmView license[Untitled photo, possibly related to: Supper at Marianna, Arkansas flood refugee camp]. Sourced from the Library of Congress. https://www.rawpixel.com/image/12253314/photo-image-face-people-smokeFree Image from public domain licenseBusiness People Talking Connection Conversation Concept https://www.rawpixel.com/image/116595/image-rawpixelcomView licenseBusiness People Talking Connection Conversation Concept https://www.rawpixel.com/image/116519/image-rawpixelcomView license[Untitled photo, possibly related to: The Bessemers "blooming" at the Jones and Laughlin Steel Company in Aliquippa… https://www.rawpixel.com/image/12262810/photo-image-sky-smoke-lightFree Image from public domain licenseRepairing Sicilian roads. The Germans in retreat demolished most of the main highways. Allied military is working around the… https://www.rawpixel.com/image/12296524/photo-image-plant-person-horseFree Image from public domain licenseSilhouette Meeting Table Office Room Window Indoor Concept https://www.rawpixel.com/image/120544/image-rawpixelcomView licenseMan Rear View Top Mountain Carefree Cloudscape Concept https://www.rawpixel.com/image/15341/premium-photo-image-activity-adventure-calmView licenseAir pollution desktop wallpaper https://www.rawpixel.com/image/11560049/air-pollution-desktop-wallpaperView licenseBusinessmen Handshake Deal Business Partnership Concept https://www.rawpixel.com/image/119037/premium-photo-image-achievement-adult-adviceView license[Untitled photo, possibly related to: Jones Laughlin steel company. Pittsburgh, Pennsylvania]. Sourced from the Library of… https://www.rawpixel.com/image/12287062/photo-image-sky-smoke-lightFree Image from public domain licenseBusiness Professional Communication Office Cityscape Concept https://www.rawpixel.com/image/117418/premium-photo-image-brainstorming-building-businessView license[Untitled photo, possibly related to: Jones and Laughlin steel company. Pittsburgh, Pennsylvania]. Sourced from the Library… https://www.rawpixel.com/image/12287382/photo-image-sky-smoke-lightFree Image from public domain licenseStreator (vicinity), Illinois. Passing an eastbound freight train on the Atchison, Topeka and Santa Fe Railroad between… https://www.rawpixel.com/image/12289843/photo-image-cat-sky-smokeFree Image from public domain license