Cities
Air pollution is usually concentrated in densely populated metropolitan areas, especially in developing countries where environmental regulations are relatively lax or nonexistent. However, even populated areas in developed countries attain unhealthy levels of pollution with Los Angeles and Rome being two good examples.
Read more about this topic: Air Quality
Famous quotes containing the word cities:
“An architect should live as little in cities as a painter. Send him to our hills, and let him study there what nature understands by a buttress, and what by a dome.”
—John Ruskin (1819–1900)
“Beyond the horizon, or even the knowledge, of the cities along the coast, a great, creative impulse is at work—the only thing, after all, that gives this continent meaning and a guarantee of the future. Every Australian ought to climb up here, once in a way, and glimpse the various, manifold life of which he is a part.”
—Vance Palmer (1885–1959)
“Not like the brazen giant of Greek fame,
With conquering limbs astride from land to land,
Here at our sea-washed, sunset gates shall stand
A mighty woman with a torch, whose flame
Is the imprisoned lightning, and her name
Mother of Exiles. From her beacon-hand
Glows world-wide welcome; her mild eyes command
The air-bridged harbor that twin cities frame.”
—Emma Lazarus (1849–1887)