Mexico City - Post Report Question and Answers
Pollution index (Good, Moderate, Unhealthy, or Very Unhealthy)?
Moderate when it rains, unhealthy in the hotter, dry season. - Mar 2009
At times, the pollution index is incredibly unhealthy. However during the rainy season which begins as early as April and can last as late as October, pollution index could be good on certain days. - Nov 2008
The pollution is rated as unhealthy. As runners, we can sometimes feel this in our lungs. However, we live at a higher altitude than the city and find it most times quite pleasant. - Oct 2008