Evaluation_of_ambient_air_quality___in_Guangzhou__China.pdf

Journal of Environmental Sciences 19(2007) 432–437 Evaluation of ambient air quality in Guangzhou, China 1,2 3 4 5 1,3,∗ ZHOU Kai , YE You-hua , LIU Qiang , LIU Ai-jun , PENG Shao-lin 1. South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China. E-mail: k-zhou@ 2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China 3. School of Life Sciences, Sun Yat-sen University, Guangzhou 510275, China 4. Department of Biology, Hainan Normal University, Haikou 571158, China 5. Climatic and Agrometeorological Center of Guangdong Province, Guangzhou 510080, China Received 17 May 2006; revised 16 August 2006; accepted 2 September 2006 Abstract On the basis of the reported air quality index (API) and air pollutant monitoring data provided by the Guangzhou Environment Monitoring Stations over the last twenty-five years, the characteristics of air quality, prominent pollutants, and variation of the average annual concentrations of SO , NO , total suspended particulate (TSP), fine particulates (PM ), CO and dustfall in Guangzhou City were 2 2 10 analyzed. Results showed that TSP was the prominent pollutant in the ambient air environment of Guangzhou City. Of the prominent pollutants, TSP accounted for nearly 62%, SO 12.3%, and NO 6.4%, respectively. The average API of Guangzhou over 6 years was 2 x higher than that of Beijing,