A GIS-based Study for Optimizing the Total Emission Control Strategy in Lanzhou City

作者：An Xingqin^*; Ma Anqing; Liu Daobin

来源：Environmental Modeling and Assessment, 2008, 13(4): 491-501.

DOI：10.1007/s10666-007-9096-4

• Air pollution
• Total emission control strategy
• Models-3 modeling system
• Linear programming model
• GIS
• Lanzhou city

A geographic information system (GIS)-based approach with spatial analysis advantages was developed to optimize the total emission control scheme on air pollution in Lanzhou, combined with Models-3 modeling system and a linear programming model. GIS system is mainly used for establishing a multifactor assessment model to quantitatively divide environmental functional zone, and also used for selecting control sites in linear programming model. The results show that most of the urban area belongs to the second type of function, which is 122.8 km(2) occupying about 76.5% and the third type of about 32.9 km(2) occupying 20.5%. To reach the air quality up to the national standard in the entire control area, some large-emission factories need to cut emissions from 19% to 27%. For small but low-emission height sources, the cut may be as high 40%. The improvement of the ecological environment is urgently needed for controlling the background particle pollution in Lanzhou city.

• 出版日期2008-11
• 单位中国海洋大学; 北京大学; 中国医学科学院北京协和医院