It isn't just there that this happens, but in a natural diet of some communities in the Canadian arctic and in the United States and in the European arctic, a natural diet of seals and whales leads to an accumulation of PCBs that have gathered up from all parts of the world and ended up in these women.
并不是只有日本才这样， 而是在一些国家的自然食物链都这样 在加拿大北部，在美国 还有欧洲北部， 海豹和鲸鱼的自然食物链 导致了PCB分子的富集 从世界上的各个地方 聚集到妇女的身上。