洛阳城区PM10、PM2.5质量浓度时空变化特征及其与气象因子的关系

doi:10.14088/j.cnki.issn0439-8114.2021.20.007

湖北农业科学 ›› 2021, Vol. 60 ›› Issue (20): 35-42.doi: 10.14088/j.cnki.issn0439-8114.2021.20.007

洛阳城区PM₁₀、PM_2.5质量浓度时空变化特征及其与气象因子的关系

赵佳伦¹, 周士锋², 雷雅凯¹, 冯艳¹, 刘艺平¹, 孔德政¹

1.河南农业大学林学院,郑州 450002;
2.河南农业职业学院,郑州 451450

收稿日期:2020-09-21 出版日期:2021-10-25 发布日期:2021-11-05
通讯作者: 孔德政（1964-）,男,江苏高淳人,教授,主要从事风景园林植物、规划设计研究,（电子信箱）kzxy303@163.com。
作者简介:赵佳伦（1995-）,女,河南洛阳人,在读硕士研究生,研究方向为风景园林规划设计,（电话）13103756231（电子信箱）524975653@qq.com。
基金资助:
国家自然科学基金项目（31600579）; 河南省科技攻关项目（202102110234）; 河南农业大学科技创新基金项目（KJCX2017C01）

Temporal and spatial variation characteristics of PM₁₀ and PM_2.5 mass concentration in Luoyang city and their relationship with meteorological factors

ZHAO Jia-lun¹, ZHOU Shi-feng², LEI Ya-kai¹, FENG Yan¹, LIU Yi-ping¹, KONG De-zheng¹

1. College of Forestry,Henan Agricultural University,Zhengzhou 450002,China;
2. Henan Vocational College of Agriculture,Zhengzhou 451450,China

Received:2020-09-21 Online:2021-10-25 Published:2021-11-05

摘要/Abstract

摘要： 利用2017—2019年洛阳市7个国控空气质量监测站的大气颗粒物PM_2.5、PM₁₀的质量浓度监测数据,研究洛阳市城区大气颗粒物浓度的时空变化特征及气象因素对其的影响。结果表明,2017—2019年洛阳市城区环境空气污染总体状况呈先降后增的趋势,其中,2018年空气质量整体状况最好,重度及以上的污染天数占全年有效天数的比例最低;2019年污染总天数相较于2017年减少10 d,但相较于2018年增加31 d;空气质量整体情况PM₁₀和PM_2.5浓度月均值变化基本一致,浓度变化均呈U形分布;PM₁₀和 PM_2.5质量浓度变化具有明显的季节性特征,冬季其质量浓度最高,春季和秋季次之,夏季最低;各国控站点的PM_2.5、PM₁₀质量浓度同样显示冬季高,春、秋季次之,夏季低,大气污染状况整体呈西北高、东南低的分布特征;气象因子分析表明,ρ（PM_2.5）、ρ（PM₁₀）与温度均呈显著负相关;相对湿度与PM₁₀的质量浓度呈负相关,但与PM_2.5的质量浓度呈正相关,在相对湿度为60%~70%时,PM_2.5的质量浓度较大;PM_2.5、PM₁₀的质量浓度在风向为南风、东南偏南风、西南偏南风、西南偏西风时较小。2017—2019 年洛阳市空气污染状况变化与地形、气象条件、城市化建设均有一定的关系。

关键词: PM_2.5, PM₁₀, 时空分布, 洛阳市

Abstract: Based on the mass concentration monitoring data of PM_2.5 and PM₁₀ from seven state-controlled air quality monitoring stations in Luoyang city from 2017 to 2019, the temporal and spatial variation characteristics of atmospheric particulate concentration and the influence of meteorological factors on it in the urban area of Luoyang city were studied. The results showed that the overall situation of environmental air pollution in Luoyang city urban area from 2017 to 2019 showed a trend of first decreasing and then increasing. Among them, the overall situation of air quality in 2018 was the best, and the number of severely polluted days and above accounted for the lowest proportion of the effective days of the year; The number of polluted days decreased by 10 days compared with 2017, but increased by 31 days compared with 2018; The overall air quality situation of PM₁₀ and PM_2.5 concentration changes in monthly averages were basically the same, and the changes in concentration were in a U-shaped distribution; PM₁₀ and PM_2.5the mass concentration changes had obvious seasonal characteristics. The mass concentration in winter was the highest, followed by spring and autumn, and the lowest in summer; The mass concentrations of PM_2.5 and PM₁₀ at the control sites in various countries also showed high in winter, followed by spring and autumn, and low in summer, the air pollution situation as a whole presented the distribution characteristics of high in northwest and low in southeast; Analysis of meteorological factors showed that ρ（PM_2.5） and ρ（PM₁₀） were negatively correlated with temperature; Relative humidity was negatively correlated with the mass concentration of PM₁₀, but it was positively correlated with the mass concentration of PM_2.5. When the relative humidity was 60%~70%, the mass concentration of PM_2.5 was greater; The mass concentration of PM_2.5 and PM₁₀ in the wind direction was southerly and southeast-southern, south-southwest wind and west-southwest wind were smaller. The changes in air pollution in Luoyang city from 2017 to 2019 were related to terrain, meteorological conditions and urbanization.

Key words: PM_2.5, PM₁₀, temporal and spatial distribution, Luoyang city

中图分类号:

X513

赵佳伦, 周士锋, 雷雅凯, 冯艳, 刘艺平, 孔德政. 洛阳城区PM₁₀、PM_2.5质量浓度时空变化特征及其与气象因子的关系[J]. 湖北农业科学, 2021, 60(20): 35-42.

ZHAO Jia-lun, ZHOU Shi-feng, LEI Ya-kai, FENG Yan, LIU Yi-ping, KONG De-zheng. Temporal and spatial variation characteristics of PM₁₀ and PM_2.5 mass concentration in Luoyang city and their relationship with meteorological factors[J]. HUBEI AGRICULTURAL SCIENCES, 2021, 60(20): 35-42.

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洛阳城区PM₁₀、PM_2.5质量浓度时空变化特征及其与气象因子的关系

Temporal and spatial variation characteristics of PM₁₀ and PM_2.5 mass concentration in Luoyang city and their relationship with meteorological factors

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