This book contains updated results of both theoretical and applied research in the field of sensors and methods for environmental control, mainly with regard to the detection of pollutant species in gaseous and liquid ambients.The main arguments are related to: development of new nanostructured materials as sensing layers and new detection mechanisms; development of micro- and nano-systems and their integration in miniaturised instruments; application of innovative devices in the detection of contaminant chemical species and their monitoring.The proceedings have been selected for coverage in:• Index to Scientific & Technical Proceedings (ISTP ROM version / ISI Proceedings)Contents:Ambient Sensors (A D’Amico)Gas Monitoring Unit Realized with a Microsystem Based Approach: Recent Advancements in System Subcomponents and Architecture (S Nicoletti & L Dori)Porous Silicon Microcavities in Bio-Chemical Sensing (P Arcari et al.)Sensing Performances of LB Calyx[4]pyrrole Films in Alcohol Vapours Recognition (S Conoci et al.)Thermal Effects at the Interaction of SnO2 Chemoresistive Sensors with Reducing Gases (A Tomescu et al.)Surface Acoustic Wave Sensing in Liquids: Features, Tendencies, Perspectives (I V Anisimkin & Yu V Gulyaev)Rapid Electrochemical Sensors and Biosensors for Environmental Analysis (I Palchetti et al.)Automated Water Analyser Computer Supported System (AWACSS): An EU-Supported Consortium Developing a Convenient, Quick and Cost-Effective Water Immunosensor (D M Willard & G Gauglitz)Optimisation of an Electrochemical Dissolved Oxygen Microsensor for an Environmental Monitoring System (M E Sandison & J M Cooper)On Site Soil Screening for Volatile Pollutants with an Electronic Nose (M Harms et al.)A Modelling System for Studying the Photochemical Pollution: An Application Over a Mediterranean Area (C Mangia et al.)Sensor Array for the Monitoring of Contaminant Gases (M Aleixandre et al.)and other papersReadership: Graduate students, scientists and researchers in the field of sensors and microsystems for environmental control.