I was for few days in lapland for an interview, its been a long time when i last time hiked there. It always comes like hit to a head. Man isnt the air clean there. And i live in a quite small finnish town which is very clean atleast compared to metropolitan cities, but the difference in air quality near arctic circle is striking. I once were on school trip to a Rome and the air was absolutely disgustingly irritating to my nose, must be all the scooters etc.
I think its sometimes little bit foolish to worry one or two antinutrients in some leafy green if the air you breath is full of pollution and toxins, it goes right to your circulation from lungs. I am not a doctor but It would make sense.
How important is clean living enviroment you live in? And what do you do about it?