INFLUENCING FACTORS OF SYNERGY DEGREE FOR INDUSTRIAL POLLUTANT AND CARBON REDUCTIONS IN CHINESE CITIES
Industrial activities of cities discharge large amounts of CO2 and pollutants.They are important sources of environmental pollution.Existing studies on the synergistic control of pollutants and CO2 emissions mostly focus on the national or provincial scale,as well as in a single environmental medium.It is necessary to investigate the synergistic nature of pollutants and CO2 emissions at the urban scale and across environmental media.This study analyzed the synergy degree between industrial CO2 emissions and the emissions of four pollutants to different environmental media(namely SO2,NOx,COD,and NH3-N)in 178 Chinese cities from 2013 to 2019.Moreover,the socioeconomic factors influencing the synergy degree were revealed.Results showed that the annual mean synergy degrees of industrial CO2 and four pollutants emissions showed an"N"-shaped trend.Nearly 40％of the cities realized the synergistic control of industrial pollutants and CO2 emissions.Around 50％of the cities realized only industrial pollutants reduction.Unfortunately,about 10％of the cities have increased industrial CO2 and pollutant emissions simultaneously.Generally,strengthening government policies is a key factor influencing the industrial synergy degree.However,there is a spatial heterogeneity in the key factors influencing the synergy degree of eastern,central,and western cities.In addition,encouraging innovation and attracting talent are key factors in promoting synergistic control of pollutants and CO2 emissions in old industrial cities.
reduction of CO2 and pollutant emissionscarbon dioxidemulti-media pollutantssynergy degreeinfluencing factors
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万方数据
