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| Overview on current criteria for heavy metals and its hint for the revision of soil environmental quality standards in China |
| CHEN Shi-bao1*, WANG Meng1*, LI Shan-shan2, ZHAO Zhong-qiu2, E Wen-di3 |
1 Key Laboratory of Plant Nutrition and Fertilizer, Ministry of Agriculture/Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, P.R.China
2 School of Land Science and Technology, China University of Geosciences, Beijing 100083, P.R.China
3 National Agricultural Technology Extension and Service Center, Ministry of Agriculture, Beijing 100125, P.R.China |
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Abstract Following rapid social and economic development over the past several decades, soil pollution by heavy metals (HMs) has been both serious and widespread in China. The Soil Environmental Quality Standards (SEQSs) in China (GB 15618-1995) have been introduced to encourage and enforce sustainable soil HM management. However, in recent years, HM contents in soils have frequently been found to exceed their associated standard values, while the crops growing on them might still meet regulatory standards, and vice versa. There is thus growing awareness that GB 15618-1995 does not effectively regulate current soil HM pollution, as it has encountered bottlenecks, and disappointing outcomes caused by poor execution along with deficiencies and gaps in the policies. However, due to the deficiency of scientific research about relationships between soil HM concentrations and their ecological or human health effects, the development of SEQSs in China is still greatly restricted. This paper discusses international SEQSs of HMs as well their development in China over time, then examines current Chinese SEQSs to demonstrate their potential regulatory deficiencies by referring to international SEQSs. The corresponding legislative policies are described, and scientific information or responses are outlined for maintaining soil environmental quality. China’s experience has shown that policy and science can be linked to work in tandem to better understand and manage soil quality issues.
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Received: 26 July 2017
Accepted:
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| Fund: This research was financially supported by the National Key Research and Development Program of China (2016YFD0800707), the Key Technologies R&D Program of China during the 12th Five-Year Plan period (2015BAD05B03) and the National Natural Science Foundation of China (41271490). |
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Corresponding Authors:
Correspondence CHEN Shi-bao, E-mail: chenshibao@caas.cn
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| About author: CHEN Shi-bao, E-mail: chenshibao@caas.cn; WANG Meng, E-mail: wangmeng@caas.cn;
* These authors contribute equally to this study. |
Cite this article:
CHEN Shi-bao, WANG Meng, LI Shan-shan, ZHAO Zhong-qiu, E Wen-di.
2018.
Overview on current criteria for heavy metals and its hint for the revision of soil environmental quality standards in China. Journal of Integrative Agriculture, 17(04): 765-774.
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