严寒地区老旧小区围合式结构布局对PM_(10)浓度的影响  

作　　者：齐伟民[1] 房宏琦 赵彦博[1] 

机构地区：[1]吉林建筑大学艺术与设计学院,吉林长春130118

出　　处：《环境保护与循环经济》2022年第10期62-65,71,共5页environmental protection and circular economy

基　　金：吉林省科技厅科技发展计划项目“生态韧性视角下严寒地区城镇老旧小区人工环境改造技术研究”(20210203144SF)。

摘　　要：围合式楼房布局结构是老旧小区常见布局之一,通过对老旧小区进行实地监测分析,探究其PM_(10)浓度分布,对于老旧小区更新变迁和提供对居住环境的优化策略、提升人居环境空间质量改造设计有重要的理论和现实意义。为探讨寒地城市老旧小区围合式结构布局对PM_(10)浓度的影响,以长春市为例,在夏季和冬季对围合式楼房布局的老旧小区内PM_(10)质量浓度及气象因子进行监测。结果表明,围合式楼房布局监测地之间的PM_(10)质量浓度日变化基本一致,在日变化中一般呈早晚高中间低;冬夏两季不同方位布局监测地之间PM_(10)质量浓度存在显著差异性,全年1—2月的浓度最大,随着气温的升高和植物的长势,浓度不断降低,6月与7月增长相对平稳;在季节水平上各监测地PM_(10)浓度差异较为明显,且各监测地PM_(10)浓度冬季明显高于夏季;研究区域PM_(10)质量浓度与温度呈负相关,与相对湿度呈正相关,与风速呈负相关。The enclosed building layout structure is one of the common layouts of the old community.Through the field monitoring and analysis of the old community,exploring its PM_(10) concentration distribution has important theoretical support and practical significance for the renewal and change of the old community,providing the optimization strategy for the living environment,and improving the spatial quality of the living environment.In order to explore the influence of enclosed structure layout on PM_(10) concentration in old residential areas in cold cities,taking Changchun city as an example,PM_(10) mass concentration and meteorological factors in old residential areas with enclosed building layout were monitored in summer and winter.The results show that:The diurnal variation of PM_(10) mass concentration of the monitoring sites of enclosed buildings is basically the same,and the diurnal variation is generally high in the morning and evening and low at noon;There are significant differences in PM_(10) mass concentration between monitoring sites in different directions in winter and summer.The concentration is the largest from January to February of the year.With the increase of temperature and the growth of plants,the concentration continues to decrease,and the growth trend is relatively stable in June and July.At the seasonal level,the difference of PM_(10) concentration in each monitoring area is obvious,and the PM_(10) concentration in winter is significantly higher than that in summer;The mass concentration of PM_(10) in the study area is negatively correlated with temperature,positively correlated with relative humidity and negatively correlated with wind speed.

关 键 词：围合式楼房布局 PM_(10)浓度 严寒地区 老旧小区 

分 类 号：X513[环境科学与工程—环境工程]