Air Quality - Cities

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:

    Over the tree-tops I float thee a song,
    Over the rising and sinking waves, over the myriad fields and the
    prairies wide,
    Over the dense-packed cities all and the teeming wharves and ways,
    I float this carol with joy, with joy to thee, O death,
    Walt Whitman (1819–1892)

    Satire is born of the cities it denounces.
    Mason Cooley (b. 1927)