Abstract
Sampling and analyzing the soil of coastal public green space in Jiaozhou Bay, Qingdao, a total of 31 plots were surveyed, 242 soil samples were collected, and the types and contents of heavy metals in the soil were analyzed. The ecological risk index method and the ground accumulation index method were used to evaluate Qingdao Jiaozhou Bay. Heavy metal risk in coastal public green space. The results show that the average content of Cr, Cd, Pb, Zn, Hg, Cu and Ni in heavy metals exceeds the natural background value of soil. The content of As, Cr, Pb, Zn and Cu is lower than the value specified in the secondary standard specified in GB15618-1995 Soil Environmental Quality Standard. The content of Hg and Ni is between the values specified in the second to third grades. The content of Cd exceeds the value specified by the three-level standard. The ecological risk index and the low cumulative index evaluation show that the heavy metals with relatively high risk are Cd and Hg.
Highlights
With regards to Qingdao's rapid economic development in recent years, industry has made a outstanding contribution, and brought serious environmental pollution, especially heavy metal pollution and affect on some cellular and molecular aspects [1-10]
This paper samples the soil of the coastal public green space of Jiaozhou Bay, and analyzes the categories and content of heavy metals in the soil [11-29]
The potential ecological risk index and index of geoaccumulation are used to evaluate the content of heavy metals in the soil of the coastal public green space in Jiaozhou Bay
Summary
With regards to Qingdao's rapid economic development in recent years, industry has made a outstanding contribution, and brought serious environmental pollution, especially heavy metal pollution and affect on some cellular and molecular aspects [1-10]. With the rapid development of the surrounding economy and society, a large amount of industrial waste water and domestic sewage are discharged into Jiaozhou Bay through rivers. Under the influence of ocean current such as economic and energy, heavy metals in the waste water and sewage are collected to the coastal area of Jiaozhou Bay along with its sediment. This paper samples the soil of the coastal public green space of Jiaozhou Bay, and analyzes the categories and content of heavy metals in the soil [11-29].
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