I live in Poland and we are the lungs of Europe, still air is polluted as hell.. i dont wanna think how bad it is in other countries.
And its not so easy to move out if you dont have enough of money.
But I am happy to know that Poland's air still can breath, at least, compared to India or China.
I have been in Szczecin city once, and I love Poland, and I specially love the Polish people.
Wish all good for you guys over there, and that the air gets better in the future, we need to hope.