Features treatment of various tracers, ranging from pathogens to stable isotopes of elements and providing a comprehensive discussion which is lacking in many other books on pollution control of natural waters. This title presents a discussion on pollutants such as brominated and phosphate flame retardants, perflurochemicals, and pharmaceutical.

Preface xi 1 TRANSPORT OF POLLUTANTS 1 1.1 Introduction, 1 1.2 Advection–Diffusion Equation with Reaction, 2 1.3 Steady-State Mixing in Estuaries, 4 1.3.1 Determination of Diffusivity D from Salinity Measurements, 5 1.3.2 Pollutant Prediction for an Estuary with Uniform Discharge, 5 1.3.3 Salinity in an Infinite Estuary with a Large Freshwater Discharge, 8 1.3.4 Conservative Pollutant Prediction for an Infinite Estuary with a Large Freshwater Discharge, 9 1.4 Time-Dependent Mixing in Rivers and Soil Systems, 10 1.5 Vertical Mixing, 14 1.5.1 The Radon Method, 16 1.5.2 The Tritium–helium-3 Method, 17 1.5.3 Evaluation of Mixing Based on Density Gradients, 19 1.6 Hydrodynamic Models, 20 1.7 Groundwater Plumes, 22 1.8 Sediment Mixing, 23 References, 25 2 SEDIMENTATION PROCESSES 28 2.1 Introduction, 28 2.2 210Pb Dating of Sediments, 29 2.2.1 Measurement of 210Pb Activity, 30 2.2.2 210Pb Activity Profiles, 33 2.3 137Cs and 239+240Pu Dating of Sediments, 38 2.4 Dated Records of Metals and Organic Pollutants, 42 2.5 Deconvolution of Sedimentary Records, 49 2.6 Chemical and Biological Degradation, 55 2.7 Sediments as a Source of Pollutants, 56 2.7.1 Phosphorus, 57 2.7.2 Metals, 57 2.7.3 Acid-volatile Sulfides, 58 2.7.4 Organics, 59 References, 60 3 ATMOSPHERIC INTERACTIONS 65 3.1 Introduction, 65 3.2 Atmospheric Deposition Processes, 66 3.2.1 Gaseous vs. Particulate Chemicals in the Atmosphere, 66 3.2.2 Dry Deposition with Aerosols, 68 3.2.3 Wet Deposition, 75 3.2.4 Gas Exchange, 78 3.3 Deposition and Gas Exchange of Organic Contaminants, 84 3.4 Marine and Freshwater Microlayers, 87 3.5 Case Study: Emission of VOCs from Wastewater Treatment Plants, 89 3.6 The Fugacity Model, 93 3.6.1 Fugacity Definitions and Basic Equations, 94 3.6.2 Levels of Complexity, 101 3.6.3 Example Calculations – Chlorobenzene, 103 References, 108 4 WATER CHEMISTRY 113 4.1 Introduction, 113 4.2 Carbonate and Alkalinity, 115 4.2.1 Dissolved CO2 and Carbonate Speciation in Water, 115 4.2.2 Solving Equilibrium pH, 117 4.2.3 Alkalinity, 120 4.2.4 Buffer Index, 124 4.3 Sulfur Chemistry, 127 4.3.1 Sulfur Redox Reactions in Water, 128 4.3.2 Sulfur in Sediment, 132 4.3.3 Acid Rain, 133 4.4 Impact of Global Warming on Natural Waters, 135 References, 136 5 NUTRIENTS 138 5.1 Introduction, 138 5.2 Input of Nutrients and Acidity, 140 5.3 Eutrophication, 143 5.3.1 Eutrophication Control, 148 5.3.2 Harmful Algal Blooms, 149 5.3.3 Cladophora, 155 5.4 Nitrogen, 156 5.4.1 The Nitrogen Cycle, 156 5.4.2 Nitrification and Denitrification, 159 5.4.3 N Removal, 166 5.5 Phosphorus, 169 5.5.1 The Phosphorus Cycle, 169 5.5.2 P Removal, 170 5.5.3 Case Study: Phosphorus from Wastewater Treatment, Stormwater, and Rivers in Milwaukee, Wisconsin, 172 5.6 Vitamins and Trace Metals, 173 References, 180 6 METALS 185 6.1 Introduction, 185 6.2 Trends, Measurement, and Toxicity, 186 6.3 Major Sources and Reactions of Metals in Water, 193 6.3.1 Atmospheric Deposition of Metals, 193 6.3.2 Hydration, Hydrolysis, and Complex Formation, 196 6.3.3 Dissolution of Metals from Minerals, 201 6.4 Behavior of Selected Metals in Water, 203 6.4.1 Mercury, 203 6.4.2 Zinc and Cadmium, 204 6.4.3 Arsenic, 207 6.5 Zero-Valent Iron in Remediation of Contaminated Water, 209 6.5.1 Dechlorination of Chlorinated Hydrocarbons, 209 6.5.2 Reduction of Uranium Carbonate, Chromate, and Arsenate, 214 References, 215 7 ORGANIC POLLUTANTS 220 7.1 Introduction, 220 7.2 Important Organic Pollutant Groups, 221 7.2.1 Petrochemicals and Industrial Solvents, 221 7.2.2 Polycyclic Aromatic Hydrocarbons (PAHs), 223 7.2.3 Polychlorinated Biphenyls (PCBs), 223 7.2.4 Polyhalogenated Dibenzo-p-Dioxins and Dibenzofurans (PXDD/Fs), 226 7.2.5 Polybrominated Diphenyl Ethers (PBDEs) and other Flame Retardants, 226 7.2.6 Organochlorine Pesticides (OCPs), 232 7.2.7 Other Pesticides, 236 7.2.8 Perfluorinated Compounds (PFCs), 239 7.2.9 Pharmaceuticals and Personal Care Products (PPCPs) and other Endocrine Disrupting Compounds (EDCs), 240 7.3 Descriptors of Organic Molecules, 243 7.4 Basic Physicochemical Properties, 245 7.4.1 Vapor Pressure, 246 7.4.2 Aqueous Solubility, 247 7.4.3 Henry’s Law Constant, 248 7.4.4 Octanol–Water Partition Coefficient, 248 7.4.5 Air–Octanol Partition Coefficient, 249 7.5 Distribution of Organic Chemicals in Aquatic Environment, 249 7.5.1 Air–Water, 250 7.5.2 Water–Sediment, 250 7.5.3 Water–Biota and Sediment–Biota, 251 7.6 Transformations in Water, 252 7.6.1 Hydrolysis, 253 7.6.2 Photochemical Degradation, 255 7.6.3 Biological Degradation, 257 7.6.4 Case Study: Transformation of PBDEs in the Environment, 259 References, 261 8 PATHOGENS 268 8.1 Introduction, 268 8.2 Bacteria, 271 8.3 Protozoa, 272 8.3.1 Cryptosporidium, 273 8.4 Molecular Techniques for Detection of Pathogens, 276 8.4.1 Water, 276 8.4.2 Biosolids, 277 8.5 Pathogen Indicator Organisms and Surrogates, 277 8.5.1 Bacillus Subtilis, 280 8.5.2 E. Coli and Fecal Coliforms, 280 8.6 Bacterial Contamination of Recreational Waters, 281 8.6.1 Modeling, 283 8.6.2 Beaches, 286 8.6.3 Recreational Pools, 287 8.7 Pathogen Removal in Water and Wastewater Treatment, 288 8.7.1 Water, 288 8.7.2 Wastewater and Solid Waste, 289 8.7.3 Inactivation Kinetics, 290 References, 295 9 TRACERS 298 9.1 Introduction, 298 9.2 Natural vs. Artificial Tracers, 299 9.3 Radioisotopes, 300 9.4 Stable Isotopes, 301 9.5 Applications of Tracer Technology, 305 9.5.1 Stable Isotope Tracers, 305 9.5.2 N and O Stable Isotopic Compositions of Nitrate Sources, 309 9.5.3 Other Physical and Chemical Tracers, 310 9.5.4 Molecular-Based Biological Tracers, 314 9.6 Chemical Mass Balance Modeling, 315 9.6.1 CMB Model for PAHs in Kinnickinnic River, Wisconsin, 316 9.7 Factor Analysis, 320 9.7.1 Non-negative Constraints Matrix Factorization, 322 9.7.2 Positive Matrix Factorization, 331 9.7.3 Unmix, 335 References, 341 10 ECOTOXICOLOGY 347 10.1 Introduction, 347 10.2 Bioassays, 349 10.2.1 Fish, 350 10.2.2 Algae, 350 10.2.3 Daphnia, 351 10.3 Molecular Biology Tools, 353 10.3.1 Polymerase Chain Reaction (PCR), 353 10.3.2 Fluorescent in Situ Hybridization (FISH), 354 10.3.3 Gene Expression, 354 10.3.4 Biomarkers, 355 10.4 Human Health, 357 10.4.1 Fisheries Advisories, 357 10.4.2 Mercury, 358 10.4.3 Polychlorinated Biphenyls (PCBs), 358 10.5 Endocrine-Disrupting Chemicals, 359 10.6 Types of Toxicity, 360 10.6.1 Disinfection Byproducts, 361 10.6.2 Detoxification and Degradation, 361 10.6.3 Antibiotics, 362 10.6.4 Nanomaterials, 363 10.7 Models and Toxicity Tests, 364 10.7.1 Dose–Response Models for Single Toxicants, 364 10.7.2 Dose–Response Models for Multiple Toxicants, 369 10.7.3 Pulsed Toxicity Tests, 374 10.7.4 Chronic Toxicity Tests, 375 10.8 Quality Criteria, 376 10.8.1 Sediment Quality Criteria, 376 10.8.2 Water Quality Criteria, 381 10.8.3 Total Maximum Daily Loads, 381 References, 383 11 AMBIENT WATER QUALITY CRITERIA 389 11.1 Introduction, 389 11.2 A Primer on Ambient Water Quality Regulations, 390 11.3 Current US Water Quality Criteria, 391 11.3.1 Aquatic Life Criteria, 402 11.3.2 Human Health Criteria, 403 11.3.3 Organoleptic Effects, 404 11.4 Water Quality Databases, 404 APPENDIX 11.A Footnote for Table 11.1, 405 APPENDIX 11.B Footnote for Table 11.2, 408 APPENDIX 11.C Additional Notes, 410 References, 412 Index 415

There is need in environmental research for a book on fresh waters including rivers and lakes. Compared with other books on the topic, this book has a unique outline in that it follows pollution from sources to impact. Included in the text is the treatment of various tracers, ranging from pathogens to stable isotopes of elements and providing a comprehensive discussion which is lacking in many other books on pollution control of natural waters. Geophysical processes are discussed emphasizing mixing of water, interaction between water and the atmosphere, and sedimentation processes. Important geochemistry processes occurring in natural waters are described as are the processes specific to nutrients, organic pollutants, metals, and pathogens in subsequent chapters. Each of these chapters includes an introduction on the selected groups, followed by the physicochemical properties which are the most relevant to their behavior in natural waters, and the theories and models to describe their speciation, transport and transformation. The book also includes the most up to date information including a discussion on emerging pollutants such as brominated and phosphate flame retardants, perflurochemicals, and pharmaceutical and personal care products. Due to its importance an ecotoxicology chapter has been included featuring molecular biological methods, nanoparticles, and comparison of the basis of biotic ligand model with the Weibull dose-response model. Finally, the last chapter briefly summarizes the regulations on ambient water quality.