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1、The Technical Support System of Ambient Air Quality Management in Tianjin TIANJIN One of the important economic centers and ports in the north of China Total area：11919 km2 Built-up area：371 km2 Population: 10 million Binhai new area of Tianjin (BNAT)：350km2 Bohai 大港区 汉沽区 东丽 津南 塘沽区 开发区 BNAT is locat
2、ed at Bohai Bay Rim city belt with an area of 2270 km2 The area of planed key construction: 350km2. position of BNAT 保税区、 天津港 Background Objectives and meanings Content Technologies Basis Background Tianjin was granted the title of “National Model City of Environmental Protection” in 2005 The percen
3、tage of days attaining grade II of the ambient air quality standard during 2002-2005 Background Under the rapid economic development and increasing energy consumption, the Tianjin air quality is fragile. The coal consumption during 2000-2004 The haze haunted the sky of Tianjin under the disadvantage
4、ous meteorologic conditions. Tianjin had a bad air quality on 2-7 November 2005. 1 day of heavy air pollution with API of 340 2 days of moderate-heavy air pollution with API of 267-279 2 days of light heavy air pollution with API of 191-155 1 day of slight air pollution with API of 113 Background On
5、 3-4 November 2005 Beijing Tianjin Shijiazhuang API: 279-340，Heavy or moderate-heavy air pollution The regional characteristic of the heavy air pollution The smoke pollution caused by coal burning hasnt resolved yet, the urban air pollution has begun to transform from smoke-type to complex-type, whi
6、ch is marked by the emergence of new pollutants such as aerosols, fine particle matters, ozone and so on. Background TIANJIN CENTRAL URBAN AREA Background 北辰科技园测点二氧化氮日变化曲线图 The daily change of NO2 concentration standard Background Ozone pollution is emerging with the rapid increase of vehicle owners
7、hip 05.9.7臭氧日变化曲线图 standard Project meanings It is a big challenge for Tianjin to keep the good urban air quality Maintain the model city of environmental protection Continuously improve the urban air quality Realize the plan of “Blue Sky Project” Ensure the constant rate of attaining standard Provi
8、de the environmental administrative departments with scientific and accurate pre-warning pollution information Endeavor to fulfill the goal of ecological model city Meet the scientific, informative, quantitative and legal requirements of air quality management. Establish an integrated system of air
9、quality management involved environment monitoring, forecast and pre-warning and environmental capacity match. Project meanings Main content Establish Tianjin GIS dynamic assessment database system of air pollution sources. Integrated meteorological and geographic factors into the model Establish ai
10、r quality decompose system in order to provide visualized model system of air quality picture Establish Tianjin regional ambient air quality and capacity match management system to provide technical support for the air quality management during the 11th Five-Year Plan period Establish Tianjin ambien
11、t air quality pre-warning and response system vThe establishment of GIS dynamic management system of air pollution sources Survey on the stationary sources and the establishment of emission inventory for the stationary sources Survey on the mobile sources and the establishment of emission inventory
12、for the mobile sources Survey on the opening sources and the establishment of database for blown-up dusts as one of the opening sources Project Content Projects Content vThe establishment of integrated system of meteorological data The collection of meteorological data The integrated system of meteo
13、rological data Integration and analysis of various meteorological data； Identification of the weather type affecting the urban ambient air quality； The systematic analysis on the air disperse capacity of Tianjin Project Content vThe establishment of air quality explain and analysis system The establ
14、ishment of air quality monitoring database Weather-Air Quality model establishment By analyzing the weather characteristic of the heavy air quality day (e.g. the haze weather), the countermeasures can be selected under such weather condition. Project Content The regional ambient air quality capacity
15、 and total amount distribution management system Based on the dynamic ambient air capacity, considering the allowable emission amount of various pollution sources under a certain meteorological conditions, a reasonable pollution emission distribution can be designed from the autonomous adjustment of
16、 pollution sources of the model. Project Content emission capacity Air quality mimics after the adjustment of pollution sources Does pollution still exist? Yes No Decided pollution sources adjustment measures Economic factors Project Content weather classification Capacity and total amount model Different environmental capacity under different weather Tianjin air quality pre-warning system Identify air pollution thresholds under c
