Electrochemical sensors represent the oldest type of chemical sensors and are widely present in chemical laboratories, industries, healthcare and in many aspects of our daily life. During the past few decades biosensors mimicking biological receptors for the sake of analytical assessment have emerged as an extremely important and fruitful field in fundamental and applied electroanalytical chemistry. Research and routine analysis in environmental sciences have shown that electrochemical sensors and biosensors may supply useful information for solving problems from the quite general to the highly specific, dealing with environmental pollution or many other questions in connection with (bio)geochemical cycles or fundamental environmental chemical processes. Environmental analytical chemistry is a multidisciplinary field requiring the cooperation of chemists, biochemists, physicists, engineers and many other specialists, a collaboration which defines and guarantees the development and applicability of robust and highly sensitive sensors for chemical analysis and environmental monitoring. The aim of this book is to give an overview of the role of electrochemical sensors in environmental chemical analysis and on their operating principles. It provides detailed information on the applicability of such sensors to the determination of all the different substances of environmental importance. It is designed on one hand as a textbook for students and teachers, and, on the other, as a manual for researchers and applied scientists and engineers who are fully or marginally confronted with problems in context with environmental chemistry. Due to its multidisciplinary character the book synthesizes various viewpoints of different sciences and addresses chemists, physicists, pharmacists, medical doctors, engineers and in fact all who are interested, professionally or non-professionally, in the chemistry of our environment.

Part 1. Sensors for Measurement of Global Parameters.- Chapter 1. Chemical Oxygen Demand.- Chapter 2. Biochemical Oxygen Demand BOD.- Chapter 3. Total Organic Carbon (TOC).- Chapter 4. Dissolved Oxygen.- Chapter 5. pH Measurements.- Part 2. Sensors and Biosensors for Inorganic Compounds of Environmental Importance.- Chapter 6. Metals.- Chapter 7. Non-Metal Inorganic Ions and Molecules.- Chapter 8. Electroanalysis and Chemical Speciation.- Chapter 9. Nanoparticles-Emerging Contaminants.- Part 3. Sensors and Biosensors for Organic Compounds of Environmental Importance.- Chapter 10. Pharmaceuticals and Personal Care Products.- Chapter 11. Surfactants.- Chapter 12. Determination of Aromatic Hydrocarbons and their Derivatives.- Chapter 13. Explosives.- Chapter 14. Pesticides.- Part 4. Electrochemical Sensors for Gases of Environmental Importance.- Chapter 15. Volatile Organic Compounds-VOC.- Chapter 16. Sulphur Compounds (H2S, S-oxides).- Chapter 17. Ammonia and Nitrogen Oxides.- Chapter 18. Carbon Oxides.- Part 5. Data Treatment of Electrochemical Sensors and Biosensors.- Chapter 19. Data Treatment of Electrochemical Sensors and Biosensors.- Index.