2013年北京市细颗粒物时空分布特征研究 |
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引用本文: | 程念亮,李云婷,张大伟,孙瑞雯,董欣,程兵芬,李红霞. 2013年北京市细颗粒物时空分布特征研究[J]. 环境工程, 2015, 33(10): 43-46. DOI: 10.13205/j.hjgc.201510010 |
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作者姓名: | 程念亮 李云婷 张大伟 孙瑞雯 董欣 程兵芬 李红霞 |
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作者单位: | 1.北京市环境保护监测中心;2.山西省环境规划院;3.中山大学先进技术研究院 |
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摘 要: | 根据2013年北京市PM2.5监测数据,系统分析了北京市PM2.5污染的时空分布特征,并利用克里格插值统计了四季PM2.5不同浓度区间的国土面积。结果显示:2013年全市PM2.5年均浓度为89.5μg/m3,超过年均35μg/m3的国标1.56倍;PM2.5浓度由高到低的季节依次是冬季、春季、秋季和夏季;空间分布上PM2.5呈现明显的南北梯度分布特征;2013年PM2.5平均浓度达标对应的国土面积占比夏季最大为73%,冬季最小为22%。
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关 键 词: | 水生植物 传统吸油植物材料 吸油性能 疏水性 |
ANALYSIS ON THE SPATIAL AND TEMPORAL DISTRIBUTION OF PM_(2.5) IN BEIJING IN 2013 |
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Abstract: | This paper analyzed the spatial and temporal distribution of PM2. 5 and discussed the land area of differentconcentrations using Kriging interpolation based on the fine particulate matter monitoring data released by Beijing MunicipalEnvironmental Monitoring Center in 2013. Analysis results showed that the city' s annual average PM2. 5 concentration was89. 5 μg /m3 in 2013 exceeding the national standard( 35 μg /m3 ) 1. 56 times; Seasonal variations concentrations of PM2. 5were as follows: winter > spring > autumn > summer; PM2. 5 showed significant north-south gradient distribution; the proportionof land area in which average PM2. 5 concentration was below 75 μg /m3 was the largest in Summer with 73% while that was theleast in Winter with 22%. |
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