| 川东北中心城市南充大气污染态势及其主要成因 |
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| 引用本文： | 税攀恒,李卫朋,陈忠升,罗明良,李科,游泳,唐梦滴,王瑞芳.川东北中心城市南充大气污染态势及其主要成因[J].中国环境监测,2022,38(6):79-89. |
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| 作者姓名： | 税攀恒 李卫朋 陈忠升 罗明良 李科 游泳 唐梦滴 王瑞芳 |
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| 作者单位： | 西华师范大学地理科学学院, 四川 南充 637009;西华师范大学地理科学学院, 四川 南充 637009;西华师范大学四川省干旱河谷土壤侵蚀监测与控制工程实验室, 四川 南充 637009;成都理工大学环境与土木工程学院, 四川 成都 610059;四川化工职业技术学院, 四川 泸州 646099;天津工业大学环境科学与工程学院, 天津 300380;云南大学地球科学学院, 云南 昆明 650500 |
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| 基金项目： | 四川省教育厅项目(18ZA0476);西华师范大学英才科研基金项目(17YC112);基本科研业务项目(15E002,16C003);国家级大学生创新创业训练计划项目(201710638051,201810638054,201810638055);西华师范大学大学生创新创业训练计划项目(cxcy2021342) |
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| 摘 要： | 基于南充市主城区6项大气污染物浓度数据,研究了2014-2020年南充市的空气质量指数、空气质量指数等级和首要污染物的时序分布。结果表明:随着大气污染防治的开展,南充市大气污染物浓度逐渐下降,出现首要污染物的天数逐年减少,空气质量逐步提高。受污染物节律性影响,空气质量呈现明显的季节差异,冬季空气质量最差,春季次之,夏季污染相对较轻,秋季最轻。首要污染物类型的季节分布特征表现为冬季出现首要污染物天数最多,春季和夏季次之,秋季最少。春、秋、冬季以PM2.5污染为主,夏季以O3污染为主。从全年来看,与O3相比,PM2.5对空气质量的影响更为突出。在持续控制大气污染物排放总量的同时,精细化协同管控细颗粒物、氮氧化物、挥发性有机物和二氧化硫排放将有助于现阶段的大气污染防治。
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| 关 键 词： | 大气污染 川东北 南充市 空气质量指数 首要污染物 |
| 收稿时间： | 2021/8/28 0:00:00 |
| 修稿时间： | 2022/1/17 0:00:00 |
Atmospheric Pollution Situation and Its Main Causes in Nanchong,a Central City in Northeast Sichuan Province |
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| SHUI Panheng,LI Weipeng,CHEN Zhongsheng,LUO Mingliang,LI Ke,YOU Yong,TANG Mengdi,WANG Ruifang.Atmospheric Pollution Situation and Its Main Causes in Nanchong,a Central City in Northeast Sichuan Province[J].Environmental Monitoring in China,2022,38(6):79-89. |
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| Authors: | SHUI Panheng LI Weipeng CHEN Zhongsheng LUO Mingliang LI Ke YOU Yong TANG Mengdi WANG Ruifang |
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| Institution: | School of Geographical Sciences, China West Normal University, Nanchong 637009, China;School of Geographical Sciences, China West Normal University, Nanchong 637009, China;Sichuan Provincial Engineering Laboratory of Monitoring and Control for Soil Erosion on Dry Valleys, China West Normal University, Nanchong 637009, China;College of Environment and Civil Engineering, Chengdu University of Technology, Chengdu 610059, China;Sichuan Vocational College of Chemical Technology, Luzhou 646099, China;School of Environment Science and Engineering, Tiangong University, Tianjin 300380, China; School of Earth Science, Yunnan University, Kunming 650500, China |
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| Abstract: | In this paper,based on the concentration data of six air pollutants in the main urban area of Nanchong City,the air quality index,air quality index levels and the time series distribution of the primary pollutants from 2014 to 2020 were studied.The results indicated that with the prevention and control of air pollution,the concentration of air pollutants in Nanchong had gradually decreased,the number of days with primary pollutants decreased year by year and air quality gradually improved.Air quality showed significant seasonal differences due to pollutant rhythmicity,the air quality was worst in winter,followed by spring,relatively light in summer,and lightest in autumn.The seasonal distribution of the primary pollutant types was characterized by:the highest number of days with primary pollutants in winter,followed by spring and summer,and the lowest in autumn.Spring,autumn and winter were dominated by PM2.5 pollution,while summer was dominated by O3 pollution.From a year-round perspective,PM2.5 had a prominent position relative to O3.While continuing to control the total emissions of air pollutants,fine and cooperative control of fine particulate matter,nitrogen oxides,volatile organic compounds and sulfur dioxide might contribute to the prevention and control of air pollution at this stage. |
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| Keywords: | atmospheric pollution northeast Sichuan Nanchong City air quality index primary pollutant |
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