chapter 1 Sampling Methods in Surface Waters / chapter 2 Methods of Treatment of Data / chapter 3 Radioanalytical Methodology for Water Analysis / chapter 4 Bacteriological Analysis of Water / chapter 5 Marine Toxins Analysis. and Marı´a R. Velasco / chapter 6 Halogens / chapter 7 Analysis of Sulfur Compounds in Water / chapter 8 Phosphates / chapter 9 Cyanides / chapter 10 Asbestos in Water / chapter 11 Heavy Metals, Major Metals, Trace Elements / chapter 12 Determination of Silicon and Silicates / chapter 13 Main Parameters and Assays Involved with Organic Pollution of Water / chapter 14 Determination of Organic Nitrogen and Urea / chapter 15 Organic Acids / chapter 16 Determination of Phenolic Compounds in Water. Tarekegn Berhanu and Jan A˚ke Jo¨nsson -- chapter 17 Characterization of Freshwater Humic Matter / chapter 18 Analysis of Pesticides in Water / chapter 19 Fungicide and Herbicide Residues in Water / chapter 20 Polychlorobiphenyls / chapter 21 Determination of PCDDs and PCDFs in Water / chapter 22 Polynuclear Aromatic Hydrocarbons / chapter 23 Analysis of Volatile Organic Compounds in Water / chapter 24 Analysis of Surfactants in Samples from the Aquatic Environment / chapter 25 Analysis of Endocrine Disrupting Chemicals and Pharmaceuticals and Personal Care Products in Water / chapter 26 Residues of Plastics