上海市虹口区居民住宅区PM_(2.5)浓度的调查  

Investigation on PM_(2.5) concentration in residential areas of Hongkou District in Shanghai

作　　者：徐映如 张颖琦[1] 沈俊毅 

机构地区：[1]上海市虹口区疾病预防控制中心,200082

出　　处：《职业与健康》2015年第13期1812-1814,共3页Occupation and Health

基　　金：上海市虹口区疾病预防控制中心人才培养(项目编号:jk2012-6)

摘　　要：目的调查上海市虹口区居民住宅区2013年1月-2014年10月的PM2.5浓度，为政府制定或完善PM2.5的相关政策提供科学依据和数据根据。方法在虹口区居民住宅每月中旬连续采样7d，每天连续采样24h，并利用重量法测定环境空气PM2.5浓度。结果共收集到154份数据，PM2.5日均质量浓度范围是13—267g／m3，中位数为57g／m3，平均值为73g／m3。PM2.5季节平均浓度按浓度高低排列为春季、冬季、夏季、秋季，浓度值分别为88、76、70、58g／m3。除1月份上海市PM2.5污染比虹口区严重，其余各月份的平均浓度都比虹12I区低，差异有统计学意义（P〈0．05）。虹口区PM2.5春季、夏季、秋季、冬季质量浓度超过GB3095—2012《环境空气质量标准》中24h平均浓度的二级标准限值75g／m3，其超标率为48％、29％、20％、43％：与美国国家环境保护局（EPA）修订的PM2.5标准中规定的24h平均浓度限值35g／m3相比，春、夏、秋、冬的超标率为86％、79％、77％和89％。结论虹口区PM2.5污染春季最严重，PM2.5浓度在上海市处于较高的水平，且污染水平与我国《环境空气质量标准》和美国EPA修订的PM2.5标准相比均存在超标问题。[Objective] To investigate the concentration of PM25 from January 2013 to October 2014 in residential areas of Hongkou District in Shanghai, provide a scientific basis and data reference for government to develop and improve the relevant policies of PM2.5[ Methods ] Air samples were continuously collected 24 hours a day and 7 days a week in every mid-month in residential building of Hongkou District, and PM2.5 concentration in ambient air was measured by the weight method.[ Results ] A total of 154 groups of data were collected, and 24-hour average concentrations of PM2.5 were between 13 g/m3 and 267 g/m3, with the median of 57 g/m3 and average value of 73 g/m3. Seasonal average concentrations of PM2.5 from high to low were as follows： spring, winter, summer, autumn, which the concentration was 88 g/m3, 76 g/m3, 70 g/m3 and 58 g/m3, respectively. Except in January, the average PM2.5 concentration of Shanghai was lower than that of Hongkou District in other months, and the difference was statistically significant （P〈0.05）. The 24-hour average PM2.5 concentration of Hongkou District in four seasons exceeded 75 g/m3, which is the secondary standard limit defined in the Ambient Air Quality Standard （GB 3095-2012）, which the over-standard rate in spring, summer, autumn and winter was respectively 48%, 29%, 20% and 43%. Compared with the revised standard of 24-hour average PM2.5 concentration by the United States Environmental Protection Agency （EPA）, which is 35 g/m3, the overstandard rate in spring, summer, autumn and winter was respectively 86%, 79%, 77% and 89%.[ Conclusion ] The highest PM2.5 pollution level has happened in spring in Hongkou District. PM2.5 concentration in Hongkou District is at a higher level of Shanghai, and the concentration exceeds the limits not only in the Ambient Air Quality Standard of China but also in the revised standard of EPA in United States,

关 键 词：居民住宅区 PM2 5 监测 

分 类 号：R122[医药卫生—环境卫生学]