When a substance VOCs abandoned or spill on the surface will be moving through the soil and are absorbed and accumulated in the soil. In addition, when rains are leaching contaminated substances VOCs in the air into the soil to make the soil contamination. Affecting the quality and uses of the soil. In addition, chemicals in pesticides and pharmaceutical group defeat some types of pests in the soil because they are durable, inserted in the sediment or clay well.
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