Updated best cities list with an improved and streamlined formula. AQI has been removed and the rest of the formula has been reworked

1. St. Paul, MN
2. Newark, NJ
3. Arlington, VA
4. Burlington, VT
5. Urbana IL
6. Champaign, IL
7. Elizabeth, NJ
8. Trenton, NJ
9. Mount Vernon, NY
10. Paterson, NJ
11. Ithaca, NY
12. Washington DC
13. Minneapolis, MN
14. Boulder, CO
15. Denver, CO
16. Wilmington, DE
17. State College, PA
18. Baltimore, MD
19. Pittsburgh, PA
20. Portland, OR
21. Jersey City, NJ
22. Ann Arbor, MI
23. Hoboken, NJ
24. Yonkers, NY
25. Eureka, CA
26. San Francisco, CA
27. Lebanon, PA
28. Port Townsend, WA
29. Boston, MA
30. Portland, ME