Beijing, June 5th Today, Wu Xiaoqing, the deputy minister of the Ministry of Environmental Protection, announced at the press conference of the State-run Office that the urban air quality in China was generally stable in 2011, but PM2.5 pollution gradually appeared, and the Ministry of Environmental Protection had made it clear. The first phase of PM2.5 standard implementation scope, time limit and work requirements, 496 PM2.5 monitoring points will begin to announce the testing data before the end of the year.

Wu Xiaoqing stated at the press conference that the urban air quality in the country is generally stable. If evaluated according to the old standards, the ambient air quality standards of 325 prefecture-level and above cities (including parts, states, leagues, and provinces) will be met in 2011. The proportion is 89.0%, and the percentage of cities exceeding the standard is 11.0%. However, with the implementation of new air quality standards, PM2.5 pollution in cities in China will gradually appear. From the monitoring results of some pilot cities monitored in 2011, the majority of cities have exceeded the standard for fine particulates, with an average annual value of 58 micrograms/m3. The ambient air quality standard for the PM2.5 annual average is 35 micrograms/cubic meter.

Wu Xiaoqing disclosed that in 2012 China will implement new standards in the key regions, municipalities directly under the Central Government, and capital cities in the Beijing-Tianjin-Hebei region, the Yangtze River Delta, and the Pearl River Delta. Currently, the Ministry of Environmental Protection has issued a "Circular on the implementation of the first phase of the new air quality monitoring program." ” Clearly defined 496 monitoring sites in 74 cities in the first phase, and required the completion of air quality monitoring equipment installation and trial operation by the end of October 2012. The air quality monitoring data was released before the end of December.

China Economic Network reporter learned that 33 cities including Beijing, Shanghai, Guangzhou and Nanjing have carried out research monitoring of new indicators for PM2.5 and issued monitoring information. Wu Xiaoqing said that at 8 a.m. yesterday morning, Guangdong Province was the first company in the country to publish 62 monitoring data and real-time AQI data in the Pearl River Delta at the same time according to new monitoring points. People can use the Guangdong Provincial Monitoring Network and the Internet in real time. To understanding.