1. Department of Agricultural Chemistry, National Taiwan University, Taipei, Taiwan, Republic of China
2. Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-Environmental Science & Technology, Guangdong Academy of Sciences, Guangzhou, P. R. China
3. National-Regional Joint Engineering Research Center for Soil Pollution Control and Remediation in South China, Guangzhou, P. R. China