|Table of Contents|

Analysis of Potential Risks to Human Health of the VegetablesPlanted at Bank Side of Yingtao River(PDF)

《南京师大学报（自然科学版）》[ISSN:1001-4616/CN:32-1239/N]

Issue:
2019年02期
Page:
122-128
Research Field:
·地理学·
Publishing date:

Info

Title:
Analysis of Potential Risks to Human Health of the VegetablesPlanted at Bank Side of Yingtao River
Author(s):
Wu Fang1; Lu Xiaoxu2; Zhou Xiaoxiao1; Peng Shuangshuang1
(1.School of Geographic Sciences,East China Normal University,Shanghai 200241,China)(2.College of Teacher Education,East China Normal University,Shanghai 200062,China)
Keywords:
heavy metal; soil pollution; Yingtao River; vegetable field; potential ecological hazard; health and safety risk
PACS:
X53,K903
DOI:
10.3969/j.issn.1001-4616.2019.02.020
Abstract:
The riparian land of Yingtao River beside Zilong road which is in Minhang District of Shanghai was developed by residents around to plant vegetables. Mixed soil samples were collected from these fields and the concentrations of Cu,Zn,Pb,Cr,Ni and Cd were measured. According to the values for soil background of heavy metals in Shanghai,and Soil Environmental Quality Risk Control Standard for Soil Contamination of Agricultrual Land(GB 15618-2018),it was found that the contents of Cd,Pb and Zn in vegetable soil were higher than the values for soil background in Shanghai,while the contents of Cd and Zn exceeded the risk screening values for soil contamination of agricultural land and the content of Cd also exceeded the risk intervention values for soil contamination of agricultural land. With the method of Geo-accumulation Index(Igeo)based on the values for soil background of heavy metals in Shanghai,the results showed that the soil had been polluted by Cd,Zn and Pb. Classified by Igeo,Cd was strong level pollution,Zn was medium level pollution and Pb was light-medium level pollution. Evaluated by potential ecological risk index(Er),Cd would pose extremely strong ecological hazard,and the others may pose slight ecological hazard. With a variety of heavy metal comprehensive ecological risk index(RI)to measure,vegetable fields had strong ecological hazards and the important hazards come from Cd which contributes 97.05% hazards. In conclusion,eating vegetables from riparian land of Yingtao River may pose health and safety risk. It is suggested that relevant departments of Minhang District should conduct propaganda and advice residents not to plant vegetables in the field,and the residents should also voluntarily abandon the practice of developing the riparian land of Yingtao River. Furthermore,managers and citizens all over the country should be alert to the health and safety risks brought by the use of urban land for agricultural production.

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Last Update: 2019-06-30