北京市PM2.5污染特性及对老年呼吸系统疾病的影响

发布时间：2017-12-31 02:00

本文关键词：北京市PM2.5污染特性及对老年呼吸系统疾病的影响　出处：《中国老年学杂志》2015年01期 　论文类型：期刊论文

【摘要】：目的探讨北京市大气中PM2.5的污染特性及其对老年呼吸系统疾病的影响。方法 2012年2月至2014年2月在北京市人口相对密集的城区设点,对大气中细颗粒污染物PM2.5的浓度、平均气温、最低气温、最高气温等气象资料进行收集,分析PM2.5的污染水平。收集该院呼吸科门诊老年患者就诊率,分析北京市PM2.5污染特性与老年呼吸系统疾病的相关性。结果 1~4月及11、12月(采暖期)PM2.5平均浓度较高,与5~10月(非采暖期)相比差异有统计学意义(P0.05);冬季采暖期PM2.5浓度与日照时长、降水量、最低气温、最高气温、平均温度均呈负相关(r=-0.488、-0.512、-0.565、-0.565、-0.629);PM2.5日均浓度与呼吸系统就诊率呈正相关(r=0.788)。结论北京市采暖期PM2.5日均浓度增大,老年患者呼吸系统疾病发病率升高,二者呈正相关。
[Abstract]:Objective to investigate the characteristics of PM2.5 pollution in the atmosphere of Beijing city and its influence on respiratory diseases in elderly patients. Methods from February 2012 to February 2014 in Beijing City, the population is relatively dense urban areas set up, concentration of pollutants of PM2.5 fine particles in the atmosphere average temperature, minimum temperature, maximum temperature and other meteorological data were collected, the pollution level of PM2.5 collection analysis. In the outpatient department of respiration in elderly patients, correlation analysis of pollution characteristics of PM2.5 in Beijing city and respiratory diseases in elderly patients. Results 1~4 months and 11,12 months (heating period) the average concentration of PM2.5 is higher, and the 5~ in October (non heating period) compared to the difference was statistically significant (P0.05); long, precipitation, winter heating period PM2.5 the concentration and sunshine time minimum temperature, maximum temperature and average temperature were negatively correlated (r=-0.488, -0.512, -0.565, -0.565, -0.629); the average concentration of PM2.5 was positively correlated with the treatment rate of respiratory system ( R=0.788) conclusion the average daily concentration of PM2.5 in the heating period of Beijing increased and the incidence of respiratory diseases in the elderly patients increased, and the two was positively correlated.

【作者单位】：解放军305医院急诊科;解放军305医院医务部;
【分类号】：R56
【正文快照】： 1解放军305医院医务部随着城市化进程,建筑量、汽车保有量的增加与烟尘的污染使细颗粒物污染日渐严重〔1,2〕。PM2.5表面积大,粒径小,可在大气中长时间停留,且含有大量的有害有毒特质,可随着呼吸进入人体,甚至到达肺泡与血液中,引起多重呼吸系统疾病,对城市环境及居民健康造成

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