Progress in the Atmosphere-Soil-Pakchoi interface process of heavy metal deposition in Nanjing soil

In recent decades, human activities such as non-ferrous metal mining and smelting, industrial coal burning, and automobile exhaust emissions have released a large amount of heavy metals into the atmosphere.

The research group of Zhou Jing, a researcher at the Nanjing Institute of Soil Science, Chinese Academy of Sciences, used field atmospheric exposure experiments to set up soil replacement experiments and bioconcentration effects (“Soil -Vegetable system") test (Fig.

The results of the field full-factor pot exposure experiment showed that, compared with the background area, the content of heavy metals in the pak choi plants exposed to the sedimentation area increased significantly

A study on the environmental behavior of atmospheric deposition heavy metals in soil found that newly deposited heavy metals in the atmosphere can significantly increase the total amount of heavy metals in the soil surface and the proportion of weak acid extraction, indicating that the newly deposited heavy metals with high bioavailability are mainly retained in the soil surface

Finally, this paper characterizes the fluxes and speciation distributions of heavy metals in atmospheric dry and wet deposition in the study area

The above research results were published in the journal Environmental Science & Technology.

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