1. An, X. Q., Chen, Y. C., & Lu, S. H. (2003). Estimation of winter TSP permissible total discharge amount in Lanzhou City. China Environment Science, 23, 60–63.
2. Borrego, C., Miranda, A.I., Coutinho, M., Ferreira, J., & Carvalho, A. C. (2002). Air quality management in Portugal: example of needs and available tools. Environment Pollution, 120, 115–123.
3. BUT (Beijing University of Technology). (2004). Research on Atmospheric Environmental Capacity and Air Quality Planning for Fengnan District (in Chinese). China: Beijing University of Technology.
4. CEPA (China Environmental Protection Administration). (1996). National Ambient Air Quality Standard (GB 3095-1996) (in Chinese). China: CEPA.
5. Crabbe, H., Beaumont, R., & Norton, D. (2000). Assessment of air quality, emissions and management in a local urban environment. Environental Monitoring and Assessesment, 65, 435–442.