Urban Air Pollution

In this book, air pollution trends for the past 50 year and recent status are introduced mainly focusing on Mexico and Japan, includes discussions on the US and China. While analyzing data in model cities, this publication presents major findings of Mexico-Japan joint SATREPS project, where identical measuring technique and observational methods are applied to obtain comparable high precision data. In addition to fundamental knowledge of the atmosphere, latest monitoring data and original measured data are used to clarify the ozone, VOCs and PM2.5 formation mechanisms in Mexico and Japan and co-beneficial countermeasure scenarios both effective to improve regional and global atmospheric environmental conditions are proposed. Air pollution in megacity areas is a serious environmental issue where prompt countermeasure should be taken. Important characteristics of recent issues are non-linearity between emission intensity and environmental concentration level and wide-ranging scale of temporal and aerial distributions. Comprehensive understanding range from roadside air pollution to global atmosphere is required. The publication helps readers to understand air pollution formation mechanisms and countermeasure scenarios both effective for regional and global atmospheric environment. This book will appeal to researchers and graduate students in atmospheric environmental sciences, under graduate students in science, engineering and social science, environmental administrative officers and citizens who are interested in atmospheric environment.