Evaluation of ambient air quality in Guangzhou, China |
| |
Authors: | ZHOU Kai YE You-hu LIU Qiang LIU Ai-jun and PENG Shao-lin |
| |
Institution: | 1. South China Botanical Garden,Chinese Academy of Sciences,Guangzhou 510650,China;Graduate School of the Chinese Academy of Sciences,Beijing 10039,China 2. School of Life Sciences,Sun Yat-sen University,Guangzhou 510275,China 3. Department of Biology,Hainan Normal University,Haikou 571158,China 4. Climatic and Agrometeorological Center of Guangdong Province,Guangzhou 510080,China 5. South China Botanical Garden,Chinese Academy of Sciences,Guangzhou 510650,China;School of Life Sciences,Sun Yat-sen University,Guangzhou 510275,China |
| |
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 SO2, NO2, total suspended particulate(TSP), fine particulates (PM10), CO and dustfall in Guangzhou City were 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%, SO2 12.3%, and NOx 6.4%, respectively. The average API of Guangzhou over 6 years was higher than that of Beijing, Tianjin, Nanjing, Hangzhou, Suzhou and Shanghai, and lower than that of Shenzhen, Zhuhai and Shantou. Concentrations of air pollutants have shown an downward trend in recent years, but they are generally worse than ambient air quality standards for USA, Hong Kong and EU. SO2 and NOx pollution were still serious, impling that waste gas pollution from all kinds of vehicles had become a significant problem for environmental protection in Guangzhou. The possible causes of worsening air quality were also discussed in this paper. |
| |
Keywords: | air pollution index (API) total suspended particulates (TSP) atmospheric quality Guangzhou Guangzhou air quality ambient causes paper waste vehicles significant problem environmental protection pollution Hong standards trend recent Zhuhai Shantou lower Shenzhen Suzhou |
本文献已被 CNKI 维普 万方数据 ScienceDirect PubMed 等数据库收录! |
| 点击此处可从《环境科学学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《环境科学学报(英文版)》下载免费的PDF全文 |
|