It's possible that the leak you are seeing is a bug in the Mono runtime.  The
SQLiteParameter objects are purely managed, do not use or refer to any expensive
resources, and should be automatically garbage collected when no longer used.

It's also possible that this is some kind of bad interaction between EF6 and the
Mono runtime.  Perhaps EF6 is not properly disposing of SQLiteCommand and/or
SQLiteDataReader objects when running on Mono?  That could cause memory usage to
climb.