It is impossible to compile a complete inventory of all wastes containing or contaminated with PCDDs, PCDFs, HCB and PCBs, principally because of the dispersed nature of emissions of those chemicals.
就所有的多氯二苯并对二噁英和多氯二苯并呋喃、六氯代苯和多氯联苯编制完整的盘存资料是不可能的，主要原因是这些化学品的排放十分散乱。