云南高原中小城市楚雄市风对大气污染物扩散的影响分析

The Relationship between Air Pollutants Proliferation and the Wind in Chuxiong City,Yunnan Province

利用楚雄市气象站1987—2007年观测资料中的风向资料来统计代表冬季的1月和代表夏季的7月的风向频率,冬夏两季节的盛行风向风呈90度角。据此从季风角度结合楚雄市的居住区分布现状提出适宜楚雄市居住区和工业区布局的模式及总体布局。利用楚雄市2006年环境监测污染物二氧化硫、二氧化氮和可吸入颗粒物日浓度资料和同步风资料分别分析风向风速与二氧化硫、二氧化氮和可吸入颗粒物浓度的关系,它们的浓度随风速风向的变化而变化。

Using wind direction statistics of January and July from 1987 to 2007 of Chuxiong City represents winter and summer wind frequency in two seasons which prevailing wind direction angle is 90 degrees. According to this conclusion with the current situation of residential area in Chuxiong City, the authors propose the general layout model of residential areas and industrial districts. Also the authors analyze the relationships between wind and sulfur dioxide, nitrogen dioxide and respirable particulate matter concentration using the data of Chuxiong City in 2006, the result shows that their concentrations change with the wind speed and the wind direction change.