摘要
根据2014~2018年四川省阆中古城半夏颗粒生产基地监测站点空气自动监测数据,结合阆中市城市环境综合整治进展情况,采用空气质量综合指数法和污染负荷系数法分析了阆中古城2014~2018年的环境空气质量及其相应污染指标浓度值的变化趋势。结果表明:五年来阆中古城空气质量优良率逐年增高,空气质量有所改善;从年际变化来看,SO2以及PM10浓度在五年间总体呈逐年下降趋势,NO2浓度变化波动较小;从季节变化来看,SO2、NO2和PM10指标的均值在四季有明显的变化,污染程度均表现为:夏季<秋季<春季<冬季;大气中SO2、NO2和PM10的空气质量综合指数为P(2015)<P(2018)<P(2017)<P(2014)<P(2016)。
According to the automatic air monitoring data of Banxia particle monitoring station in Langzhong City Sichuan Province from January 2014 to December 2018,combined with the progress of comprehensive improvement of urban environment in Langzhong City,the change trend of ambient air quality and its corresponding pollution index concentration value in Langzhong ancient city from 2014 to 2018 was analyzed by comprehensive index of ambient air quality method and pollution load coefficient method.The results show that:the excellent and good rate of air quality in Langzhong ancient city has increased year by year in the past five years,and on the whole,the air quality has improved;according to the interannual variation,the concentration of SO2 and PM10 decreased year by year in the last five years,while the change of NO2 concentration fluctuated little.in terms of seasonal variation,the mean values of SO2,NO2 and PM10 were obviously changed in four seasons,and the degree of pollution was as follows:summer<autumn<spring<winter;the integrated pollution index of SO2,NO2 and PM10 in the atmosphere is P(2015)<P(2018)<P(2017)<P(2014)<P(2016).
作者
钟利健
潘昱阳
刘果
雷熊
李丹毓
钱一凡
Zhong Lijian;Pan Yuyang;Liu Guo;Lei Xiong;Li Danyu;Qian Yifan(Nanchong Environmental Monitoring Center Station,Nanchong,Sichuan,637000,China;School of Environmental Science and Engineering,West China Normal University,Nanchong,Sichuan,637009,China;Lanzhong City Environmental Monitoring Station,Lanzhong,Sichuan,637400,China)
出处
《绿色科技》
2019年第14期76-80,共5页
Journal of Green Science and Technology
关键词
阆中古城
空气质量指数
污染指数
负荷系数
Langzhong ancient city
air quality index
pollution index
load coefficient
