1, resulting in crop yield reduction and agricultural product quality decline.
2. Groundwater and surface water pollution.
3, affecting the quality of the atmospheric environment.
4, endangering human health.
Because of their different types and properties, pollutants entering the soil mainly have different destinations such as fixation, volatilization, degradation, diffusion and leaching. Heavy metal ions are mainly ions that can stably adsorb inorganic and organic colloids in soil.
Including ions that are specifically adsorbed by oxides and closely combined with humin, and insoluble metal hydroxides, carbonates and sulfides produced in the chemical equilibrium of soil solution, most of which are fixed in soil and difficult to eliminate; Although some chemical reactions can reduce their toxic effects, they are still potential threats to the soil environment.
/iknow-pic.cdn.bcebos.com/f2deb48f8c5494ee81222fa423f0e99257e0e "target =" _ blank "title =" "class =" ikqb _ img _ alink ">. /iknow-pic . cdn . BCE Bos . com/F2 deb 48 f 8 c 5494 ee 8 1222 fa 423 f 5 e 0 Fe 99257 e0e？ x-BCE-process = image % 2f resize % 2Cm _ lfit % 2Cw _ 600% 2Ch _ 800% 2c limit _ 1% 2f quality % 2Cq _ 85% 2f format % 2Cf _ auto " esrc = "/ N/2013/0717/c78779-2224858.html "target =" _ blank "title =" China * * * Production Party News Network-Qian Guanlin: Preventing Soil Pollution and Protecting People's Health "> China * * * Production Party.