Indoor air pollution and poor urban air quality are listed as two of the world's worst toxic pollution problems in the 2008 Blacksmith Institute World's Worst Polluted Places report. Productivity losses and degraded quality of life caused by air pollution are estimated to cost the world economy $5 trillion per year.
See also: Backdraft (film), Ghostbusters, Methylprednisolone, Benjamin Moseley, Child development, Harry Potter and the Philosopher's Stone (film),