As the first in the series of "China Air - Air Pollution Prevention and Control Progress in Chinese Cities" reports, this report provides air quality data for 74 major cities from 2013-2014, as well as the pollution-control policies of those cities, the three key regions - Beijing-Tianjin-Hebei Province (BTH), the Yangtze River Delta (YRD) and the Pearl River Delta (PRD) - and nationally, and analysis of Beijing and Shanghai’s experiences in capability building, including air quality monitoring, forecasting and alerting, reporting, pollution source apportionment and emission inventory development. The 74 cities are in the three aforementioned regions, with all municipalities directly under the National Government, provincial capitals and cities designated by the National Government, and had finished the construction of State-controlled air quality monitoring sites and launched the monitoring process by the end of 2012, and had begun releasing real-time monitoring data from 2013.