This collection includes thirty-six important recent works on the effects of pollutants on heritage sites, including thirty papers delivered to the Seville International Workshop on Air Pollution and Cultural Heritage in 2003, and six invited new additions. All papers have been written by a team of leading international contributors and are divided into five subject areas to cover the main topics of interest today. This volume is aimed at archaeologists and molecular biologists as well as advanced students and researchers in the fields of biodeterioration, building materials, micro-organisms and cultural heritage.