The source of cadmium in the water is mainly the outflow of the surface of the earth and the drainage of the factory. High wastewater, including cadmium, is wastewater that comes out of iron sulfate and phosphorus ore when making sulfuric acid and phosphorus fertilizer, and cadmium content per liter of wastewater can reach tens to hundreds of micrograms. Cadmium particles made from non-ferrous metal smelting, combustion, and incineration of plastic products in the atmosphere can enter into water. Cadmium, which emits stabilizers and fungicides, may increase the content of cadmium in drinking water when using water in urban areas, which can contaminate containers and pipes.
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