Keywords
1980s, abstract, air, america, bad-air, business, c, classic, collage, collages, color, commerce, composite, conceptual, copy-space, effect, emission, environment, exhaust, exterior, gray, grey, hars, illustration, industrial, industrial-pollution, industry, machinery, mass, mass-production, mechanization, metal, metals, mill, montage, montages, nostalgia, nostalgic, old, old-fashion, old-fashioned, old-time, outdoor, outdoors, pa, pain, pennsylvania, pittsburgh, pollute, polluted, polluter, polluting, pollution, production, retro, risk, skyline, smog, smoke, smokestack, smokey, smoking, smoky, steel, steel-mill, stress, symbol, symbolic, symbolism, toxic, united-states, united-states-of-america, urban, usa, vintage, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, ks28258