The natural distribution of heavy metals has been disturbed and they have been dispersed from their originally secure ecological position. In the course of life and industrial production people lack any real sense of alarm about all this. With the failure to take precautions the situation has gradually become harder to contain.
重金屬的自然分佈被擾亂了，原本不假外求而呈穩定狀態的「重金屬生態」慘遭瓦解，人們在生活與工業製程中又缺乏警覺、疏於防範，情況遂變得更難以收拾。