引用本文:潘洪密.广州地区大气能见度与颗粒物关系的初探[J].环境监控与预警,2015,7(1):32-36
PAN Hong mi1,WU Dui1,2,3*,LI Fei3, LIU Jian1.The Relationship between Atmospheric Visibility and Particulate Matter in Guangzhou[J].Environmental Monitoring and Forewarning,2015,7(1):32-36
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广州地区大气能见度与颗粒物关系的初探
潘洪密
作者单位
潘洪密 1.中山大学环境科学与工程学院大气科学系广东 广州 5102752.暨南大学大气环境安全与污染控制研究所广东 广州 5106323.中国气象局广州热带海洋气象研究所广东 广州 510080 
摘要:
采用番禺大气成分站2007—2013年的能见度、颗粒物(PM1、PM2.5、PM10)及番禺气象局站的相对湿度(RH)资料,对颗粒物7年来的变化状况进行了分析。以RH为标准,将能见度和颗粒物数据分为RH≥90%、80%<RH<90%和RH≤80%3个部分,并以相关系数(R2)为判断标准,分别对其之间的相关性进行了分析。结果表明,PM10、PM2.5、PM1多年日平均值分别为56.6、43.0、38.5 μg/m3,颗粒物值旱季高于雨季。当RH≤80%时,颗粒物与能见度的相关性最好,R2大小顺序为:PM10(0.47)<PM2.5(0.57)<PM1(0.58);当80%<RH<90%时,颗粒物与能见度的相关性次之,分别为PM10(0.4)<PM2.5(0.46)<PM1(0.49);当RH≥90%时,颗粒物与能见度的相关性较差。
关键词:  空气污染  颗粒物  能见度  相对湿度  相关性  广州
DOI:
分类号:X515
基金项目:国家重点基础研究发展计划基金资助项目(2011CB403403)
The Relationship between Atmospheric Visibility and Particulate Matter in Guangzhou
PAN Hong mi1,WU Dui1,2,3*,LI Fei3, LIU Jian1
Abstract:
Base on the data from 2007 to 2013 of particulate matter and atmospheric visibility of Panyu atmospheric composition station in Guangzhou city ,and the relative humidity(RH) data of Panyu meteorological administration station ,the variation of particulate matter for 7 years were analyzed .The data were divided into three clusters according to RH, RH ≥90%,80%<RH<90%,RH≤80% ,respectively .The correlation coefficient(R2) was the correlation standard of study. The results suggested that the daily mean mass concentration of PM10, PM2.5,PM1 was 56.6, 43.0, 38.5 μg/m3, respectively. The concentration in dry season was higher than in wet season.When RH≤80%, there was a statistically significant correlation between particulate matter and visibility,R2 was 0.58(PM1)>0.57(PM2.5)>0.47(PM10) .When 80%<RH<90% ,the correlation was secondary,R2was 0.49(PM1)>0.46(PM2.5)>0.4(PM10) .While RH≥90%, the correlation was very weak, and no consistent correlation was evident.
Key words:  Air pollution  Particulate matter  Visibility  Relative humidity  Correlation  Guangzhou