When it warms above 10 around here, I'll probably think about my outdoor training again. Here's my question: Has anyone ever gotten a lung infection from air pollutions in your area? My areas to train in run the gammut of factories, plastics co., to wooded trails, etc... I am trying to trace the causes of now two infections that onset in the fall. I'm down to 2 causes: 1.Office mold & bacteria from a persistant leak in the roof of our office where the hvac system is located, but an intial test is negitive or 2. Air born contaminants when I train on these bike paths. Just curious if anyone else has run into this before as it really puts a damper on my cycling stamina. Thanks for any thoughts.