| In the process of rapid development of the global economy,with the continuous advancement of industrialization and urbanization,the scale of cities continues to expand,and the population has grown rapidly.This has led to a sharp increase in energy consumption,which has made air quality issues increasingly salient,It has a great negative impact on social and economic development and the health of residents.As one of the major air pollutants,nitrogen dioxide has become the focus of related research.Since the emission of man-made pollutants is the main cause of air pollution,Different industries have different pollutant emissions and emission patterns,and the industrial spatial distribution is uneven.Therefore,the spatial distribution of different industries has an impact on the distribution of air pollutants.When the environmental self-purification capability is reduced and the environmental pollution control effectiveness is limited,people need to combine the adjustment of spatial distribution of different industries and the improvement of environmental quality.Therefore,it is of practical significance to explore the relationship between the spatial distribution of different industries and environmental quality.This paper analyzes the interaction of different industries and their spatial distribution and environmental quality on the basis of existing theories and literature.Select nine cities in the Pearl River Delta with a relatively developed economy and high population density as research objects.Through the spatial analysis capability of ArcGIS,the spatial distribution of different industries was determined.Based on the distribution data of air pollutant concentration,the correlation analysis and regression model analysis were used to quantitatively study the relationship between industrial spatial distribution characteristics and air pollutant distribution.Research conclusions: The spatial distribution of different industries has a close relationship with air quality.Most of the industrial distributions show a state of spatial aggregation,and air pollution also shows a strong degree of spatial aggregation.The pollution patterns of different industries are also different.Through the establishment of buffer zones for air pollutants monitoring,statistical monitoring of the output value of different industries within a certain range of sites,analysis of the relationship between industrial production values and air pollutant concentration in the buffer zone,and finding the correlation between the concentration of various industries and pollutants.It will vary with the scope of the buffer zone,indicating that the pollution patterns of different industries are different.It shows that the emission of pollutants from the chimneys is far away,and the pollution emissions from roads are close to pollution source.Therefore,the industrial pollutants have a wider range of impact,and the vehicle exhaust air pollution range is relatively small.Taking the industrial output value of each buffer zone as an independent variable affecting the concentration of pollutants,regression analysis showed that the industries with high energy consumption,such as transportation industry,Mineral smelting and processing industry,and mechanical and electrical equipment manufacturing industries,have a significant effect on the concentration of pollutants.With the expansion of the buffer zone,the correlation between the industrial industry and the concentration of air pollutants has gradually increased,and the concentration of transportation and air pollutants has reached a high correlation in the specific buffer zone.Finally,according to the specific conditions of the air pollution in the Pearl River Delta,we propose corresponding measures for governance,from controllingautomobile exhaust,strengthening emission management,and accelerating industrial transformation and upgrading. |
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