The characteristics of PM2.5 and its water soluble ions during Spring Festival in PRD in 2012
MA Ying1, WU Dui1,2,3, LIU jian2
1. Institute of Atmospheric Environmental Safety and Pollution Control, Jinan University, Guangzhou 510632, China; 2. School of Environmental Science and Engineering, Sun Yat-sen University, Guangzhou 510275, China; 3. Guangzhou Institute of Tropical and Marine Meteorology, China Meteorology Administration, Guangzhou 510080, China
Abstract:Particulate matter (PM) and relevant water-soluble ions were analyzed based on the hourly Marga data from China Meteorological Agency Panyu Atmospheric Components Station during Spring Festival of 2012 in PRD.During fireworks burning period, mass concentrations of PM10, PM2.5 and all water-soluble ions increased rapidly, indicating an occurrence of air pollution. The ratio of PM2.5 to PM10 (PM2.5/PM10) showed a decreasing trend,and thus the increase in PM10 caused by the pollution was more significant than that of PM2.5; however, the average value of PM2.5/PM10 is 0.92, indicating PM2.5 was the absolutely dominant component of PM. The influence of fireworks burning on the concentration of K+, Cl- and SO42- was more significant than on that of NO3- and NH4+. The correlation analysis suggested that the increase of K+, Cl-, Mg2+ and Na+ resulted from the firework burning and SO42-, NO3-和NH4+ was probably from the same source. Finally, firework burning has also contributed to the increase of black carbon.
马莹, 吴兑, 刘建. 珠三角春节期间PM2.5及水溶性离子成分的变化——以2012年为例[J]. 中国环境科学, 2016, 36(10): 2890-2895.
MA Ying, WU Dui, LIU jian. The characteristics of PM2.5 and its water soluble ions during Spring Festival in PRD in 2012. CHINA ENVIRONMENTAL SCIENCECE, 2016, 36(10): 2890-2895.