Vertical Distribution and Pollution Characteristics of Soil Heavy Metals in a Relocation Paint Factory

摘要

Selected six soil profiles in a relocation paint factory, respectively sampling at 20cm, 50cm, 100cm of each profile and detecting the Pb, Zn, Cd, Ni content to research the vertical distribution and pollution characteristics. The results showed that: part of the sample profiles were in different degrees of pollution by Pb and Zn. When the heavy metals were not accumulated in the soil upper layers, the content of the heavy metals fluctuated around the background value, when the heavy metals were accumulated in the soil upper layers, the heavy metals contents down a decreasing trend from upper layers to lower layers.