This series presents authoritative invited summaries of research on atmospheric chemistry in a changing world. The summaries range from comprehensive reviews of major subject areas to focused accounts by individual research groups. The topics may include laboratory studies, field measurements, in situ monitoring and remote sensing, studies of composition, chemical modeling, theories of atmospheric chemistry and climate, feedback mechanisms, emissions and deposition, biogeochemical cycles, and the links between atmospheric chemistry and the climate system at large.This volume has chapters describing research on health effects of air pollution, on kinetics and mechanisms of volatile organic compound oxidation, on the atmospheric chemistry of isoprene, on ground-based mobile monitoring in air quality evaluation, on how political instability and surrounding deserts in Middle Eastern countries affect the urban and regional air quality, and on tropospheric oxidation capacity.