区域城市化程度与大气污染的相关性研究——以河南省为例

Research on the correlation between the level of regional urbanization and air pollution: A case study of Henan province

为探究区域城市化程度对大气污染物质量浓度的影响,以河南省18个城市为研究对象,收集2016年1—12月的PM_(2. 5),PM_(10),SO_2,NO_2,CO,O_3等数据,结合《河南省统计年鉴(2017)》,从人口规模、经济发展、城镇建设等方面出发,选取人均生产总值、综合能源消耗量、城镇化率、建成区面积、第三产业比例等8项城市化指标与大气污染指标进行相关性分析。结果表明:(1)河南省各城市PM_(2. 5)和PM_(10)的质量浓度与城市化程度有显著的正相关性,在城市化进程中,控制污染源排放,提高能源利用效率有利于降低PM_(2. 5),PM_(10)的质量浓度;(2)河南省各城市经济发展水平和第三产业比例对SO_2污染影响较大,能源消耗量对NO_2污染影响较大,O_3污染程度受城市经济发展水平、建成区面积、能源消耗量、机动车使用量等影响较大。

In order to explore the impact of regional urbanization on atmospheric pollutant concentration,eight urbanization indicators such as per capita GDP,comprehensive energy consumption,urbanization rate,built-up area,and proportion of the tertiary industry were selected for correlation analysis with atmospheric pollution indicators in terms of population size,economic development,and urban construction.It took 18 cities in Henan Province as the research objects,and collected these cities data on PM 2.5 ,PM 10 ,SO 2,NO 2,CO,and O 3 from January to December in 2016,also consulted the Statistical Yearbook of Henan Province(2017).The results showed that:(1)There was a significant positive correlation between PM 2.5 and PM 10 concentration and the level of urbanization in 18 cities of Henan Province.In the process of urbanization,it would help reduce the PM 2.5 and PM 10 concentration by controlling the emission of pollution sources and increasing the efficiency of energy use.(2)SO 2 pollution was great affected by the level of cities economic development and proportion of the tertiary industry.Energy consumption had a great influence on NO 2 pollution.The pollution level of O 3 might be affected by the level of urban economic development,built-up area,energy consumption and the use of motor vehicles.