克拉玛依市PM_(2.5)污染特征分析  

Analysis on Characteristics of PM_(2.5) Pollution in Karamay

作　　者：张鹏[1] 刘琳[1] 罗静[1] 张帅[1] 闫怀玉 谢毅[1] 

机构地区：[1]石河子大学理学院地理系,新疆石河子832000

出　　处：《新疆环境保护》2016年第4期25-29,共5页Environmental Protection of Xinjiang

基　　金：国家自然基金(41461086)

摘　　要：对克拉玛依市2014-2015年PM_(2.5)质量浓度进行整理统计,通过Arc GIS空间插值和EXCEL数理统计分析得出PM_(2.5)的质量浓度变化特征。结果表明,PM_(2.5)各小时浓度均低于国家二级标准,整体空气质量为良;PM_(2.5)季节浓度呈现冬季高,春夏低的规律,其中2月份浓度最高,为63.7μg/m3,4月份最低为23.6μg/m3;各监测站PM_(2.5)浓度受盛行风影响自西北向东南方向递增,依次为南林小区、长征新村、白碱滩区、独山子区、乌尔禾区商贸区;PM_(2.5)与PM10全年平均比值为0.53,整体空气污染较重。此外,PM_(2.5)与NO_2和SO_2均呈正相关,与O_3呈负相关性,说明汽车尾气和化石燃料排放是PM_(2.5)的主要来源。We sortout data of PM2.5 concentration in Karamay from 2014 to 2015 and concludethe features of changes in PM2.5 concentration bymeans of ArcGIS spatial interpolation and analysis of EXCEL mathematical statistics. The results show that, PM2.5 concentration each hour is lower than National Grade II Standard, and the overall air quality is good; PM2.5 concentration varies with seasons, with higher concentration in winter and lower concentration in spring and summer. The highest concentration occurs in February, being 63.7μg/m3, and the lowest one occurs in April, being 23.6p, g/m3 ;PM2.5 concentration in each monitoring station increases from northwest to southeast under the influenceof prevailing wind, in an ascending order： Nanlin Residence Community, Chang zheng Residential Quarter, Baijiantan District, Dushanzi District, and Commercial and Trade Zone in Urho District; and the average annual ratio of PM2.5 to PM10 is 0.53, which indicates air pollution is heavier. In addition, PM2.5 is positively correlated with SO2 and NO2, but negatively correlated with O3, which indicates the main sources of PM2.5 are automobile exhausts and fossil fuel emissions.

关 键 词：PM2.5 时间特征 空间特征 相关性 克拉玛依市 

分 类 号：X513[环境科学与工程—环境工程]