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:
“What care though rival cities soar
Along the stormy coast,
Penn’s town, New York, Baltimore,
If Boston knew the most!”
—Ralph Waldo Emerson (1803–1882)
“Today as in the time of Pliny and Columella, the hyacinth flourishes in Wales, the periwinkle in Illyria, the daisy on the ruins of Numantia; while around them cities have changed their masters and their names, collided and smashed, disappeared into nothingness, their peaceful generations have crossed down the ages as fresh and smiling as on the days of battle.”
—Edgar Quinet (1803–1875)
“Whilst we want cities as the centres where the best things are found, cities degrade us by magnifying trifles.”
—Ralph Waldo Emerson (1803–1882)