| 2015—2019年抚州市临川区主要大气污染物时空变化及成因分析 |
| Spatio-Temporal Changes and Causes of Major Air Pollutants in Linchuan District of Fuzhou in 2015-2019 |
| 投稿时间：2022-03-06 修订日期：2022-06-29 |
| DOI：10.19316/j.issn.1002-6002.2023.04.10 |
| 中文关键词: 临川区 大气污染物 气象因素 时空分布 |
| 英文关键词:Linchuan District atmospheric pollutants meteorological factor temporal and spatial distribution |
| 基金项目:江西省教育厅科技项目(GJJ211631GJJ190868);江西省科技厅项目(20202BABL213046) |
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| 通讯作者:杨洪涛* 宜春学院, 江西 宜春 336000 |
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| 中文摘要: |
| 选取2015—2019年抚州市临川区不同时间尺度的空气质量指数(Air Quality Index,AQI)与6种常规大气污染物监测数据,分析了临川区主要大气污染物的时空变化及影响因素。结果表明,临川区大气PM2.5、PM10、SO2和CO年均质量浓度整体呈现下降趋势,O3年均质量浓度逐年增加,说明临川区应警惕O3污染的加剧。PM2.5、PM10和NO2质量浓度的月变化趋势表现为冬高夏低的特征。此外,2015—2019年临川区大气PM2.5、PM10月均浓度与AQI的相关性极高(r＞0.96,P≤0.01),表明临川区大气污染类型为颗粒型污染。根据污染物浓度日变化规律以及相关性分析结果可知,PM2.5、PM10、SO2、NO2日变化趋势与AQI相似。通过对2015—2019年临川区除夕至大年初一期间大气污染物变化规律和复合污染特征的分析可以发现,2018年和2019年空气污染程度较之前的3年有所下降,说明烟花爆竹燃放禁令对春节期间空气污染的控制具有明显成效。此外,控制移动源排放成为临川区大气污染治理亟需解决的重要问题。 |
| 英文摘要: |
| The Air Quality Index (AQI) of Linchuan District,Fuzhou City,Jiangxi Province from 2015 to 2019 and six kinds of conventional air pollutant data were selected for analyzing the temporal and spatial characteristics of AQI and its influencing factors of the main air pollutants in Linchuan District.The results showed that the annual average mass concentrations of PM2.5,PM10,SO2 and CO in Linchuan District showed a decreasing trend,while the annual average mass concentration of O3 was increasing year by year,which indicated that Linchuan District should be alert to the deterioration of O3 pollution.The monthly variation of PM2.5,PM10 and NO2 mass concentrations was characterized by "high in winter and low in summer ".In addition,the correlation between the monthly average concentrations of PM2.5 and PM10 and AQI in Linchuan District from 2015 to 2019 was very high (r>0.96,P≤0.01),indicating that the type of air pollution in Linchuan District was particulate pollution.According to the daily variation pattern of pollutant concentration and the correlation analysis results, it can be seen that PM2.5,PM10,SO2 and NO2 have similar daily change trends with AQI.The analysis of the change pattern of air pollutants and the characteristics of compound pollutants during New Year's Eve to New Year's Day in Linchuan District from 2015 to 2019 reveals that the air pollution level in 2018 and 2019 had decreased compared with the previous three years,indicating that the ban on fireworks display had obvious effectiveness in controlling air pollution during the Spring Festival,and the control of mobile source emissions had become Linchuan District Air pollution control was an important issue that needed to be addressed urgently. |
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