Are their certain months that are safe to eat freshwater mussels?

Answer: 
Mussels are filter feeders and they will taste similar to the substrate and quality of water in which they reside. They also will bioaccumulate heavy metals and other contaminants to a certain degree. There isn't any time of year that they are more safe to eat than at other times.
Answered on: 
Monday, June 17, 2013 - 2:58 PM MDT