Impact of China＇s SO2 Emissions on SO2 Concentration and Sulfur Deposition in Japan

• 作者: Cheng Nianliang Li Junjie Liu Yanyan Luo Yueping
• 来源期刊: 气象与环境研究：英文版
• 学科: 地球科学
• 关键词: 二氧化硫排放量 二氧化硫浓度 日本 中国 硫沉降 平均浓度 SO2浓度 监测数据
• 年，卷（期）: 2015,（5）
• 页码范围: 27-32
• 页数: 6页
• 分类号: X773

摘要

Based on the monitored data of references,EANET and the CMAQ( 4. 7. 1) model scenario simulations,the annual average concentration of SO2 in China in the recent 10 years and the contribution of China's SO2 emissions to SO2 concentration and sulfur deposition at various sites in Japan downwind were analyzed. The results showed that from 2001 to 2009 annual average concentration of SO2 was 0- 150 μg / m3 and showed a decreasing trend on the whole in China. The correlation coefficient of annual average concentration of SO2 at different sites in Japan and China's SO2 emissions was lower than that of annual average concentration and emission of SO2 in China's cities on the whole,showing that SO2 discharged in China had small impact on SO2 concentration in Japan. The contribution rate of China's SO2 emissions to annual average concentration of SO2 at various sites in Japan in 2010 was 7. 5%- 44. 0%,averaging 22. 6%; the annual average volume concentration of SO2 at different sites in Japan caused by China's SO2 emissions was 0- 0. 5 × 10- 9. The contribution rate of China's SO2 emissions to sulfur deposition at various sites in Japan in 2010 varied from 8. 0% to 41. 0%,averaging 22. 1%.