How Long Does It Take for Airsoft Pellets to Biodegrade?
Depending on the composition of the biodegradable Airsoft pellets and the environmental conditions, it could take anywhere from weeks to nearly a year or more for them to decompose. The elements needed for the pellets, or BBs, to biodegrade are soil, sunlight and water.
For example, some pellets decompose quickly in a compost environment at 60 degrees Fahrenheit, but those same BBs take up to three years to decompose if they’re sitting on the ground at a much cooler temperature. More and more often, pellets are made of 100 percent organic material as opposed to being composed of petroleum products, because after an outdoor Airsoft game, the ground will likely be covered in thousands of tiny pellets, which are virtually impossible to pick up.