Quote:
Originally Posted by MMM
I asked because it wasn't obvious to me what kinds of conclusions I should come up with lists of numbers and population densities of a bunch of cities around the world. In short, the link didn't mean much to me, so I was wondering what it meant to you.
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ok....
first, the document connected to the link i sent mentions nothing about population densities, so i am not sure what list you are looking at. second, the list has apart from population for each listed city also three variables (perhaps this what you refer to as "numbers") that hopefully* gives a relatively good picture of the air quality of the city in question.
*i say hopefully since i am not an expert on air pollution or air quality, but will have to take the authors' word that these are indeed good indicator for air pollution.