And there's quite a complicated pathway for that because, as these products age, they get concentrated in dust, and then they also get thrown out, so they go to the landfills.
追跡は非常に複雑な経路です このような製品が古くなるにつれて 塵の中で濃縮されたり 捨てられて 埋立地に持ち込まれたりして