It have visible internal air bubbles/pits, so airsoft BB's flight path will be affected. 
I could not believe that is decomposition so fast in the water . i was testing airsoft BB's that come  from china,BulletBalls. please wait for the test results.
I found a factory that is professional production of BB'S,my friend said that good quality and environmentally-friendly,you can look its website: www.bulletballs.com