Bq/m3 and pCi/L are different units of measurement for the radioactivity within a volume of space.
Bq/m3 is used globally, and pCi/L is almost exclusively used in the United States. One unit is not necessarily better than the other. They are just different units measuring the same thing.
1 pCi/L = 37 Bq/m3
If you wonder how to respond to your measured levels of Bq/m3 or pCi/L, please see our article on
How to Respond to Your Radon Levels.