Sieving of Soil Samples

摘要

Dr. Shin Takahashi, Associate Professor of Environmental Chemistry at CMES says: "The tropical Asian region plays a prominent role in supplying volatile pollutants on a global scale. It acts as an evaporating pan because of the hot climatic conditions." Toxic elements are categorized by their physical characteristics; some types are deposited in soils and spread gradually, others get easily volatilized and spread fast through water and air. The rapid economic growth of some Asian countries has lead to increasing chemical pollution and improper waste disposal, which could become the source of a global environmental problem.