Recently, zoology environment ministry is announced " dangerous trash eliminates to manage detailed account (2021 edition) " , the solid trash that clear detailed list asks does not belong to dangerous trash. The waste material that generation of bead working procedure makes in process of production of 7 kinds of colophony is included detailed account, they are: Polyethylene (PE) colophony, polypropylene (PP) colophony, polystyrene (PS) colophony, pvc (nitrile of PVC) colophony, propylene - butadiene - styrene (ABS) colophony, get together to benzene glycol of 2 formic acid ester (PET) colophony, get together pair of benzene 2 formic acid Ding Erchun ester (PBT) colophony. Of print and distribute of general office of the State Council " aggrandizement danger trash is superintended and reform of ability of benefit good buy implements plan " to perfecting danger trash differentiates a system to put forward to make clear a requirement. It is a basis dangerous trash differentiates the trends such as working practice and research achievement to adjust " dangerous trash directory " , make the dangerous trash that brings into directory more essence of life allows and science, small to environmental risk dangerous trash category executes management of specific link exempt. 2 it is to build dangerous trash to eliminate to manage detailed account, the trash that maintains existence controversy with the attribute in current environment management attach most importance to a dot, identify choose the solid trash that does not have dangerous character, avoid “ excessive ” to differentiate, repeat differentiate.