1. National Primary Drinking Water Standards, US Environmental Protection Agency (EPA), June 2003, http://www.epa.gov/safewater/consumer/pdf/mcl.pdf.
2. Regulation (EC) No 839/2008, http://ec.europa.eu/food/plant/protection/pesticides/index_en.htm.
3. Effluent Standards, Water Pollution Control Act, Rev. 2007/9/3, Environmental Protection Administration, Executive Yuan, Taiwan.
4. Pesticide Residue Limits in Foods, DOH Food No. 0960406212 Amended, Department of Health, Executive Yuan, Taiwan, 2007.
5. Analytical methods to determine phosphonic and amino acid group-containing pesticides