|
| Effective Measures to Prevent Heavy Metal Pollution: Management and Control Methods Based Loading Capacity of Soil: To International Year of Soils, IYS 2015 |
| Received:March 24, 2015 |
| View Full Text View/Add Comment Download reader |
| KeyWord:heavy metals;loading capacity of soil;management and control method of pollution;IYS 2015 |
| Author Name | Affiliation | E-mail | | WANG Yu-jun | Institute of Soil Science, Chinese Academy of Science, Nanjing 210008, China | | | CHEN Neng-chang | Guangdong Institute of Eco-environmental and Soil Sciences, Guangzhou 510650, China | | | LIU Cun | Institute of Soil Science, Chinese Academy of Science, Nanjing 210008, China | | | WANG Xing-xiang | Institute of Soil Science, Chinese Academy of Science, Nanjing 210008, China | | | ZHOU Dong-mei | Institute of Soil Science, Chinese Academy of Science, Nanjing 210008, China | | | WANG Shen-qiang | Institute of Soil Science, Chinese Academy of Science, Nanjing 210008, China | | | CHEN Huai-man | Institute of Soil Science, Chinese Academy of Science, Nanjing 210008, China | hmchen@issas.ac.cn |
|
| Hits: 4846 |
| Download times: 3931 |
| Abstract: |
| We would like to dedicate this paper to 2015 the International Year of Soil. Monitoring and control methods for the quality and the safety of soil environment and agricultural products based on loading capacity of soil for heavy metals were essentially a set of measures of cleaner production during entire process of farmland management. The method can reduce or avoid the negative effects of heavy metals on soil and crops. This article focuses on the necessity and possibility of the monitoring and control methods based loading capacity of soil for pollution management and control, emphasizing the importance of the legal backing, namely the legitimacy of the method. The differences between the loading capacity-based methods and the traditional management approaches based on environmental standards are (1)The environmental standard-based management only controls a single numerical endpoint; the loading capacity control method is three-dimensional, controlling the full range of processes. (2)The environmental standard-based management is concentration control; the loading capacity-based method is total amount control of pollutants. (3)The subject of liability in the environmental standard-based management is not clarified, led to great passive dependence on the authorities; the loading capacity-based method takes the initiative for differentiating the main responsibility will not affect the prevention and control of heavy metal pollutions whether the uniform criteria established or not. (4)The environmental standard-based management may cause inadequate control or over-protection in certain circumstances; the loading capacity-based method adopts the essence of "Land Suitability Science" and fully utilizes the soil productivity. (5)The criteria assignment of heavy metals in the environmental standard-based management is too "unified", without considering the specialities of regional environments; the loading capacity-based method supplies the critical levels for each particular region, aiming at the protection of the safety of agricultural products. The characteristics and advantages of the control methods based the loading capacity of soil are discussed in detail. It can be used as a beneficial supplement to the standards and as a substitute under the premise of the legal recognition for effective prevention and control of soil pollution. |
|
|
|
