FU Qiang,ZHAO Jing,ZHAO Chunzi.Spatio-temporal distribution of PM2.5 in Yanji City and itsrelationship with meteorological conditions[J].Journal of Yanbian University,2019,45(01):90-94.
延吉市PM2.5时空分布特征及其与气象要素的相关性分析
- Title:
- Spatio-temporal distribution of PM2.5 in Yanji City and its relationship with meteorological conditions
- 文章编号:
- 1004-4353(2019)01-0090-05
- 分类号:
- X513
- 文献标志码:
- A
- 摘要:
- 利用延吉市城区3个空气质量监测站2015年PM2.5浓度小时数据,探讨了延吉市城区PM2.5时空分布特征,并将PM2.5浓度与气象要素做相关性分析.研究结果表明: ①延吉市PM2.5季节浓度由高到低依次为冬季、秋季、春季和夏季.②延吉市PM2.5月均浓度变化均呈单峰单谷型,其中11月、12月、1月浓度值相对较高,2月开始逐月递减至10月份后开始回升.③PM2.5日均浓度曲线呈现出尖峰和深谷交替变化的锯齿状.④延吉市城区3个监测点PM2.5浓度日变化在春季、夏季、秋季和冬季都呈现双峰双谷型.⑤PM2.5浓度与气压、气温日较差、风速、相对湿度等气象要素之间存在显著地相关性.
- Abstract:
- Based on the PM2.5 concentration hour data of three air quality monitoring stations in Yanji City, the spatial and temporal distribution characteristics of PM2.5 in Yanji City were discussed, and the correlation between PM2.5 concentration and meteorological elements was analyzed, the results showed that: i)PM2.5 seasonal concentration of Yanji City from high to low were winter, spring, autumn, summer; ii)The PM2.5 monthly average concentration of Yanji City displays single peak and single valley, the highest monthly average concentration appears were November, December and January, Declining from February; iii)For the whole year, daily variation of PM2.5 showed a jaggies curve; iv)Diurnal average concentrations of PM2.5 showed an obviously bimodal curve in spring, summer, autumn and winter, autumn and spring; v)There was a significant correlation between PM2.5 concentration and meteorological elements.
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备注/Memo
收稿日期: 2018-07-31
基金项目: 吉林省气象局青年基金课题资助项目(2017028)
作者简介: 付强(1985—),男,工程师,研究方向为中短期天气预报和气候变化.