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City level CO_(2) and local air pollutants co-control performance evaluation: A case study of 113 key envir on mental protection cities in China

引用

Advances in Climate Change Research 2022年第1期13卷 118-130页

作者： Qing-Yong ZHANG Bo-Feng CAI Mu-Dan WANG Jun-Xia WANG You-Kai XING Guang-Xia DONG Zhen ZHANG Xian-Qiang MAO School of Environment Beijing Normal University'Beijing 100875China Center for Climate Change and environmental Policy Chinese Academy of Environmental PlanningBeijing 100012China China National environmental Monitoring Centre Beijing 100012China Ministry of Transport Transport Planning and Research InstituteLaboratory of Transport Pollution Control and Monitoring TechnologyBeijing 100028China

‘Co-control',or synergistically reducing CO_(2)and local air polluta nt emissions,is an important strategy for cities to achieve'low carb on'and'blue sky'simultaneously.However,there were few studies to evaluate and compare the level of co-control of CO_(2) and local air pollutants in cities year.The present study proposed qualitative and quantitative methods to evaluate the level of co-control of CO_(2)and three local air pollutant(SO_(2).NOX,and particulate matter PM)emissions in key environmental protection cities in China over two periods(2012-2015 and 2015-2018).Statistical analysis found that,though three local air pollutant emissions positively correlated with CO_(2) emission,no significantly positive correlation was found between local air pollutants emission reductions and CO_(2) emission reductions,indicating that co-control effects were poor in general.By using the co-control effect coordinate system,qualitative evaluation showed that less than half of the sample cities could achieve co-control of the total amount of CO_(2) and local air pollutants.By employing the indicator of emission reduction equivalence(EReq),quantitative evaluation showed that the co-control level of the sample cities improved in 2015-2018 compared with 2012-2015.Further regression analysis showed that,reducing coal consumption and economic development significantly enhanced the co-control performance of the observed cities.The present case study proved that the proposed methods for evaluation and comparison of the city co-control performance works well,and can be used in other countries and regions to promote global cities racing to carbon and local air pollutants co-control.

关键词： Co-control CO_(2)emission reduction Local air pollutant emission reduction:Performance evaluation key environmental protection cities

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