天津市空氣環(huán)境質(zhì)量 air quality in tianjin

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 ChinaTotal area：11919 km2Built-up area：371 km2Population: 10 millionB

2、inhai new area of Tianjin (BNAT)：350km2,Bohai,,大港區(qū),,,,,漢沽區(qū),東麗津南,塘沽區(qū),開(kāi)發(fā)區(qū),BNAT is located at Bohai Bay Rim city belt with an area of 2270 km2 The area of planed key construction: 350km2.,position of BNAT,,保稅區(qū)、天津港,,Ba

3、ckgroundObjectives and meaningsContentTechnologiesBasis,,Background,Tianjin was granted the title of “National Model City of Environmental Protection” in 2005,The percentage of days attaining grade II of the ambient

4、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

5、of Tianjin under the disadvantageous 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

6、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 3-4 November 2005,Beijing,,Tianjin,,,Shijiazhuang,API: 279-340，Heavy or moderate-he

7、avy air pollution,The regional characteristic of the heavy air pollution,The smoke pollution caused by coal burning hasn’t resolved yet, the urban air pollution has begun to transform from smoke-type to complex-type, whi

8、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,北辰科技園測(cè)點(diǎn)二氧化氮日變化曲線(xiàn)圖,The daily change of NO2 concentration,standar

9、d,Background,Ozone pollution is emerging with the rapid increase of vehicle ownership,05.9.7臭氧日變化曲線(xiàn)圖,standard,Project meanings,It is a big challenge for Tianjin to keep the good urban air quality,Maintain the model city

10、of environmental protectionContinuously improve the urban air qualityRealize the plan of “Blue Sky Project”Ensure the constant rate of attaining standardProvide the environmental administrative departments with scien

11、tific and accurate pre-warning pollution informationEndeavor to fulfill the goal of ecological model city,Meet the scientific, informative, quantitative and legal requirements of air quality management. Establish an

12、integrated system of air quality management involved environment monitoring, forecast and pre-warning and environmental capacity match.,Project meanings,Main content,Establish Tianjin GIS dynamic assessment database syst

13、em of air pollution sources. Integrated meteorological and geographic factors into the modelEstablish air quality decompose system in order to provide visualized model system of air quality pictureEstablish Tianjin

14、 regional ambient air quality and capacity match management system to provide technical support for the air quality management during the 11th Five-Year Plan periodEstablish Tianjin ambient air quality pre-warning and

15、response system,The establishment of GIS dynamic management system of air pollution sourcesSurvey on the stationary sources and the establishment of emission inventory for the stationary sourcesSurvey on the mobile s

16、ources and the establishment of emission inventory for the mobile sourcesSurvey on the opening sources and the establishment of database for blown-up dusts as one of the opening sources,Project Content,Projects Content

17、,,The establishment of integrated system of meteorological dataThe collection of meteorological dataThe integrated system of meteorological dataIntegration and analysis of various meteorological data；Identification

18、 of the weather type affecting the urban ambient air quality；The systematic analysis on the air disperse capacity of Tianjin,Project Content,The establishment of air quality explain and analysis systemThe establishmen

19、t 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

20、such weather condition.,Project Content,The regional ambient air quality capacity and total amount distribution management systemBased on the dynamic ambient air capacity, considering the allowable emission amount of v

21、arious pollution sources under a certain meteorological conditions, a reasonable pollution emission distribution can be designed from the autonomous adjustment of pollution sources of the model.,Project Content,emission

22、< capacity,,Regional emission of the pollution sources,,,,Pollution sources distribution,,Pollution sources adjustment measures,Emission of the pollution sources,,,,,No pollution adjustment measures are needed,,,,,emi

23、ssion > 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

24、 classification,Capacity and total amount model,Different environmental capacity under different weather,Tianjin air quality pre-warning systemIdentify air pollution thresholds under certain weather conditionsFind

25、out the major pollution sources by operating the modelProvide plan of prevention and control of pollution risk,Project Content,Fast diagnosis system of air pollution,,Identification of air pollution threshold,Pre-plan

26、of prevention and control of pollution risk,,Fast diagnosis system of air pollution,,Fast forecast of responding air quality,,Project Content,Project basis,Major research projects related to ambient air quality in recent

27、 years：The research on forecast of Tianjin air pollution；The research on PM source apportionment and environmental information management system；The pilot research on assessment methods of urban vehicle emission poll

28、ution；The application research of air quality forecast methods in Binhai area；The research on assessment of the implementation effects of Tianjin “Blue Sky Project”,The ongoing researches related to ambient air polluti

29、on control,Tianjin air pollution risk assessment, pre-warning and forecast systemThe research on Tianjin ozone pollution level and measures of prevention and controlMain technical requirements: Pollution source invent