The United States and China are the top two energy consumers in the world. As a consequence, they are also the top two emitters of numerous air pollutants which

In October 2003, a group of experts met in Beijing under the auspices of the Chinese Academy of Sciences, Chinese Academy of Engineering, and National Academy o

Air pollution has become part of the daily existence of many people who work, live and use the streets in Asian cities. Each day millions of city dwellers breat

The world's cities are choking on pollution from traffic and industry. With the health of over 1.6 billion people under threat, poor urban air quality is fast b