Status Of Heavy Metals In Soil Environmental Quality In Shandong Province Economic Development Zone And The Potential Ecological Risk Assessment

Nowadays, the world’s population grows rapidly, expanding production scaleindustrial enterprises. Under the vigorous development of China’s economy in thebackground, constantly accelerate urbanization. Soil is the material basis of humansurvival, but in the process of urbanization, soil suffered varying degrees of pollutionand destruction. In a series of soil pollution problems, soil heavy metal pollution is themost serious. As heavy metal contamination of soil With the greatest hazard anddifficult to control，more and more people pay attention to the problem, studies onsoil heavy metal pollution is also increasing.Development Zone of Shandong Province was first founded in1984, YantaiEconomic Development Zone and Qingdao Economic Development Zone are the firststate-level economic development zones approved by the State Council established.So far, the province’s total zone is171, which contains16national development zonesand155provincial development zones, the number of development zones in thenation is the first. In the distribution, it distributed155Zone127counties in17citiesunder the wide distribution.During the development process, the resources required for a variety ofindustries to bring together, for the daily production. In the production process willemit a variety of pollutants; including heavy metal contamination. The contaminatedwas eventually accommodated by soil, if not taking effective measures, in thelong-term effects of some pollutants such as heavy metals are constantly beingaccumulated, making the soil properties change. It is bound to affect the sustainabledevelopment of the zone. Soil is the material basis upon which development zone, itmust protect the soil environment and achieve coordinated economic andenvironmental sustainability.In this context, the paper researching pollution Situationof heavy metals in soil of the Development Zone. Evaluate the environmental quality of heavy metals in the soil.Calculating environmental Capacity of heavy metals in soil.Researching and assessing potential ecological risks of heavy metals in soil of theShandong Development Zone. Thus the development of heavy metals in soils inShandong Province has a comprehensive understanding of the status quo. Research ofthis paper can provide a reference for the economic Development Zone of soilprotection.The main results of this study are as follows:(1)In Shandong Province Economic Development Zone, the minimum pH of soilsamples was4.9, up to9.1. Soil pH soil samples zone is mainly neutral and alkaline,strongly alkaline maximum frequency has53, alkaline total frequency is100,accounting for a frequency of approximately67%. The overall average of7.68, whichwas basic, this is a significant feature of urban soils. With the development of thezone, soil pH has gradually increased. Development on the correlation between soilheavy metals are concerned, between Ni and As, Cu, Zn highly significant positivecorrelation, Hg and Cu exists between moderate significant positive correlation As, Pband As, Ni’s correlation between both bad.(2)The condition of soil environmental is in good.17cities in the metal cadmiumin Zibo City, in addition to a single factor index is greater than1, other cities metalcadmium single factor index is less than1, indicating that in addition to soil Cd, ZiboDevelopment Zone, slightly contaminated by the metal, the other zone soils areunaffected metal cadmium contamination.17cities in the development of soil heavymetal Hg, As, Cu, Cr, Pb, Zn, Ni single pollution index is less than1, good soilenvironmental quality, are not subject to these types of heavy metal pollution. ZiboCity Development Nemerow index was1.46, other cities Zone Nemerow index of lessthan0.7, according to the criteria integrated pollution index, indicating the level ofheavy metal pollution in addition to soil grade Ⅱ Zone, Zibo City, other cities soilheavy metal pollution level development zones are level Ⅰ. By studying thedevelopment of the economic situation and the situation of soil environmental qualityof soil found: Development of heavy metal pollution of soil in each group and not somuch the speed of economic development. (3)In Shandong Province various metals in soil static capacity of the order is Pb>Zn> Cr> Cu> Ni> As> Hg> Cd. In addition, Zibo Development Zone metal cadmiumcontent exceeds the national standard; other heavy metals in soil zone canaccommodate no more than the content of the soil.(4)17cities individual Development Zone in Shandong Province heavy metalsin soil potential ecological risk index descending as Cd> Hg> As> Ni> Cu> Cr> Pb>Zn. Soil Zone17cities average single factor potentially harmful heavy metals indexshowed that soil Cd, Hg, As, Ni, Cu, Cr, Pb, Zn eight heavy single-factor potentialhazard index greater than0and less than40for the light the degree of hazard.