德阳市空气污染特征分析研究  

Analysis on Air Pollution in Deyang City

作　　者：何珍[1] 潘启钟[1] 许武成[1] 张家历 

机构地区：[1]西华师范大学国土资源学院,四川南充637009

出　　处：《环境科学与管理》2015年第9期45-49,共5页Environmental Science and Management

基　　金：四川省应用基础研究资助项目(2010JY0150)

摘　　要：通过对德阳市的空气污染指数相关指标的统计分析和小波分析,得到以下结论:(1)二氧化硫作为首要污染物出现的天数在波动变化中呈下降态势,且主要集中在春、冬季;而可吸入颗粒物则处于波动中上升的状态。(2)德阳市的空气污染指数以288 d为主周期,以25 d、60 d和149 d为次周期;近7年期间出现了某些异变值。(3)德阳市的空气质量主要取决于春、冬季的空气污染情况,四季变化呈现出冬季污染严重,夏季污染较轻的特点,且有逐年加剧的倾向。This study conducted a statistical and wavelet analysis on the air pollution indexes in Deyang city. The results show that： （ 1 ） S02 which is a primary pollutant shows a declining tendency with a fluctuant change, mainly occurred in the spring and winter. （2）the main period of the air pollution index in Deyang city is 288 days, and secondary period cycles were 25 days,60 days and 149 days; certain variation value occurred in the last 7 years. （3） the air quality of Deyang City depends on the pollution situation of spring and winter. Winter recorded the most serious pollutions, while summer has less pollutions, with an increasing trend annually.

关 键 词：德阳市 空气污染指数 小波分析 

分 类 号：X51[环境科学与工程—环境工程]