宁波市2006-2017年空气质量变化趋势分析

Analysis of the variation trend of air quality in Ningbo during 2006 to 2017

根据2006-2017年《宁波市环境状况公报》发布的监测数据,本文分析了宁波市最近十二年大气环境的变化趋势,为宁波市健康城市建设中健康环境的建设提供参考。结果表明:目前,宁波空气环境质量总体保持平稳,PM10、PM2.5、NO2、SO2等主要污染物浓度、灰霾天数的比例均呈下降趋势,酸雨污染程度有所减轻,酸雨发生率呈现下降趋势。值得关注的是复合污染的趋势明显,细颗粒物污染有加重趋势,秋冬季节空气质量较差,冬季明显受灰霾影响。

The analysis of the variation trend of air quality in Ningbo during 2006 to 2017 were studied based on Ningbo Environmental Status Bulletin of 2006 to 2017,and a reference was provided for the construction of healthy environment during the construction of healthy Ningbo.The result showed that the air quality in Ningbo kept stable,the concentration of PM 10,PM 2.5,NO 2,SO 2 and other major pollutants as well as days of ash haze showed downward trend;acid rain pollution has been reduced,and the incidence of acid rain has been decreased.However,the trend of combined pollution showed obviously,and the trend of fine particulate matters pollution increased.During autumn and winter,the air quality of Ningbo was poor,and it was obviously affected by ash haze in winter.