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DERTERMINING TOTAL AMOUNT OF ZINC IN ARGRICULTURAL SOIL IN SOME AREAS OF DANANG CITY
Corresponding Author(s) : Nguyen Thi Huong
UED Journal of Social Sciences, Humanities and Education,
Vol. 2 No. 2 (2012): UED JOURNAL OF SOCIAL SCIENCES, HUMANITIES AND EDUCATION
Abstract
Agricultural soil pollution has been paid much more attention by scientists. Pollutants remaining in agricultural soil for a long time will accumulate and affect humans’ health through the food chain. The United States Environmental Protection Agency has considered that Zn is one of 13 heavy metals in the waste water flow which are the serious health hazards. Studying the procedure of analyzing the Zinc content is proposed. Atomic Absorption Spectroscopy is considered a highly precise method. In this paper, a procedure of analyzing Zn is proposed to determine total amount of zinc in soil. Wet digestion method was applied. Based on this method, soil samples in some places of Danang city were chosen to analyze and determine the Zinc content. The results show that the concentration of Zn is high in the industrial zone. However, it is still well below the permissible limit according to the Vietnamese standard QCVN 03:2008/BTNMT.
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