温州市灰霾污染的特征与成因分析

发布时间：2018-04-08 16:12

本文选题：灰霾　切入点：统计学分析方法　出处：《环境污染与防治》2017年10期

【摘要】：利用高时空分辨率的监测数据,结合混合受体模式,运用统计学分析方法,研究温州市2013—2014年大气污染物时间变化特征,并对2013年12月初严重灰霾污染事件进行案例分析。结果表明:春、冬季PM2.5平均值明显高于夏、秋季。本地PM2.5浓度受二次细颗粒物的形成、区域传输以及气象条件的影响,交通运输源是重要来源。春季PM2.5/CO(质量比)最高(尤其在凌晨和下午两个时段),此时二次细颗粒物的贡献较大。案例分析发现,安徽省及长三角地区的工业化发达区域(特别是上海市、宁波市等沿海城市)是温州市严重灰霾污染的主要潜在源区;沈阳市也是重要潜在源区,传输路径为海上通道。
[Abstract]:Based on the monitoring data with high spatial and temporal resolution and the mixed receptor model, the temporal variation characteristics of atmospheric pollutants in Wenzhou from 2013 to 2014 were studied by using statistical analysis method, and a case study of serious haze pollution events in early December 2013 was carried out.The results showed that the average value of PM2.5 in spring and winter was significantly higher than that in summer and autumn.The local PM2.5 concentration is affected by the formation of secondary fine particles, regional transport and meteorological conditions, and the transportation source is an important source.In spring, PM2.5 / CO (mass ratio) is the highest (especially in the early morning and afternoon, when the contribution of secondary fine particles is great.The case study shows that the developed industrialized regions of Anhui Province and the Yangtze River Delta (especially Shanghai, Ningbo and other coastal cities) are the main potential sources of serious haze pollution in Wenzhou, and Shenyang is also an important potential source.The route of transmission is sea passage.
【作者单位】：浙江大学环境与资源学院污染环境修复与生态健康教育部重点实验室空气污染与健康研究中心;杭州市环境监测中心站;
【基金】：国家自然科学基金资助项目(No.21577126;No.41561144004) 科技部重点研发计划项目(No.2016YFC0202702)
【分类号】：X513

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