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[1]巫晶晶,曾舒芬,龙美锟,等.2015—2019年厦门岛PM2.5污染特征及后向轨迹分析[J].集美大学学报(自然科学版),2023,28(5):473-480.
　WU Jingjing,ZENG Shufen,LONG Meikun,et al.Pollution Characteristics and Transport Trajectories of PM2.5 in Xiamen Island from 2015 to 2019[J].Journal of Jimei University,2023,28(5):473-480.
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2015—2019年厦门岛PM2.5污染特征及后向轨迹分析(PDF)
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《集美大学学报（自然科学版）》[ISSN:1007-7405/CN:35-1186/N]

卷:
第28卷
期数:
2023年第5期
页码:
473-480
栏目:
数理科学与信息工程
出版日期:
2023-09-28

文章信息/Info

Title:
Pollution Characteristics and Transport Trajectories of PM2.5 in Xiamen Island from 2015 to 2019
作者:
巫晶晶1; 2; 3; 曾舒芬1; 2; 龙美锟1; 2; 王颂阳1; 2; 林锦美1; 2; 陈锦芳1; 2
(1.集美大学港口与海岸工程学院,福建 厦门 361021；2.厦门市绿色与智慧海岸工程重点实验室，福建 厦门 361021;3.福建省食品微生物与酶工程重点实验室，福建 厦门 361021）
Author(s):
WU Jingjing1; 2; 3; ZENG Shufen1; 2; LONG Meikun1; 2; WANG Songyang1; 2; LIN Jinmei1; 2; CHEN Jinfang1; 2
1.College of Harbor and Coastal Engineering，Jimei University， Xiamen 361021,China；2.Xiamen Key Laboratory of Green and Smart Coastal Engineering,Xiamen 361021,China;3.Fujian Provincial Key Laboratory of Food Microbiology and Enzyme Engineering,Xiamen 361021,China
关键词:
大气细颗粒物; 后向轨迹聚类分析; 轨迹特征; 厦门岛
Keywords:
fine particulate matters;  backward trajectory cluster analysis;  trajectory characteristics; Xiamen Island
分类号:
-
DOI:
-
文献标志码:
A
摘要:
为促进厦门岛向“清洁空气”目标前进，利用2015—2019年厦门岛国控大气监测站提供的逐时数据，结合HYSPLIT后向轨迹模型，展开PM2.5污染特征、污染月传输及轨迹分析。结果表明：研究期厦门岛PM2.5年平均质量浓度由2015年的（29.59±13.22） μg/m3降至2019年的（24.08±11.58） μg/m3。1—3月及11月PM2.5月均质量浓度相对较高（31.68~35.86 μg/m3），6—8月则相对较低，均在20 μg/m3以下，具有“冬高夏低，春降秋升”的季节变化特点，污染月主要集中在1、2、3和11月。在污染集中的月份，温度和湿度对PM2.5影响不显著，而风速是影响PM2.5的主要因素。短距离气流输送是造成厦门岛PM2.5污染的主要原因，而来自西北及偏北方向的长距离输送加剧了厦门岛PM2.5污染。冬季污染潜在源区为闽东部沿海区域及浙、皖、赣、粤与闽交界区域，具有污染轨迹数高、短距离输送的特点。春季污染潜在源区集中在川、赣、湘等地区，具有污染轨迹数占比高、长距离输送的特点。
Abstract:
With objective of achieving Xiamen’s “Clean Air” goal,the analysis of pollution characteristics,transportation pathways and potential sources of PM2.5 in Xiamen Island were carried out from 2015 to 2019.The results show as following：the annual average PM2.5 concentration decreased from (29.59 ± 13.22) μg / m3 to (24.08± 11.58) μg / m3 during the study period.The monthly average concentration of PM2.5 is relatively high from January to March and December,between 31.68 μg/m3 and 35.86 μg/m3.The monthly average concentrtion of PM2.5 from June to August is relatively low,all below 20 μg/m3.Seasonal variation characteristics show “high in winter and low in summer,falling in spring and rising in autumn”，and the pollution months were mainly concentrated in January,February,March and November.By ignoring the seasonal effect,wind speed was the significant factor affecting PM2.5,compared with temperature and moist in these pollution months.Backward trajectory analysis indicated that the regional and short-distance sources from the northeast in Fujian were identified as the major contributors of PM2.5,and long-distance transport from the northwest and north also contributes to PM2.5 pollution in Xiamen Island.In winter,the major source regions of PM2.5 were mainly in the coastal area of Eastern Fujian and the border area between Zhejiang,Anhui,Jiangxi,Guangdong and Fujian,with the characteristics of high pollution tracks,and short distance transportation.The potential source areas of PM2.5 were mainly distributed from Sichuan,Jiangxi,Hunan,Guangdong in Spring,which was characterized by high proportion of pollution tracks and long-distance transport.

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更新日期/Last Update: 2024-01-05