Theoretically biodegradable, but not yet shown to be. As of 2015 the longest measured time was 2 years to break down about 30% of the acetate, with a diminishin

Theoretically biodegradable, but not yet shown to be. As of 2015 the longest measured time was 2 years to break down about 30% of the acetate, with a diminishing breakdown rate and a dependence on soil nitrogen availability (ocean beaches lack it).