When it come to the quality of air, every body wants their city to rank number one in the list. Yuqing Pan at Realtor.com, with the aid of 2015 EPA data, came up with a list of the nation’s top 10 cities with the best and worst air quality based on the percentage of days with good air quality. This is the list of ten cleanest cities and their median prices:

And here is the list of 10 cities with the worst air quality and their median prices:

Read more of his analysis on Realtor.com.