Synergetic PM_(2.5) and O_(3) control strategy for the Yangtze River Delta,China  

作　　者：Zhaoxin Dong Jia Xing Fenfen Zhang Shuxiao Wang Dian Ding Hongli Wang Cheng Huang Haotian Zheng Yueqi Jiang Jiming Hao 

机构地区：[1]State Key Joint Laboratory of Environmental Simulation and Pollution Control,School of Environment,Tsinghua University,Beijing 100084,China [2]State Environmental Protection Key Laboratory of Sources and Control of Air Pollution Complex,Beijing 100084,China [3]State Environmental Protection Key Laboratory of the Formation and Prevention of Urban Air Pollution Complex,Shanghai Academy of Environmental Sciences,Shanghai 200233,China

出　　处：《Journal of Environmental Sciences》2023年第1期281-291,共11页环境科学学报（英文版）

基　　金：supported by the Key Projects of National Key Research and Development Program of the Ministry of Science and Technology of China(No.2018YFC0213805);Shanghai Science and Technology Commission Scientific Research Project(No.19DZ1205006);the National Natural Science Foundation of China(Nos.92044302 and 21625701);the Samsung Advanced Institute of Technology;supported by the Tencent Foundation through the Explorer Prize。

摘　　要：PM_(2.5)concentrations have dramatically reduced in key regions of China during the period 2013-2017,while O_(3)has increased.Hence there is an urgent demand to develop a synergetic regional PM_(2.5)and O_(3)control strategy.This study develops an emission-to-concentration response surface model and proposes a synergetic pathway for PM_(2.5)and O_(3)control in the Yangtze River Delta(YRD)based on the framework of the Air Benefit and Cost and Attainment Assessment System(ABaCAS).Results suggest that the regional emissions of NOx,SO_(2),NH3,VOCs(volatile organic compounds)and primary PM_(2.5)should be reduced by 18%,23%,14%,17%and 33%compared with 2017 to achieve 25%and 5% decreases of PM_(2.5)and O_(3)in 2025,and that the emission reduction ratios will need to be 50%,26%,28%,28% and 55%to attain the National Ambient Air Quality Standard.To effectively reduce the O_(3) pollution in the central and eastern YRD,VOCs controls need to be strengthened to reduce O_(3)by 5%,and then NOx reduction should be accelerated for air quality attainment.Meanwhile,control of primary PM_(2.5)emissions shall be prioritized to address the severe PM_(2.5)pollution in the northern YRD.For most cities in the YRD,the VOCs emission reduction ratio should be higher than that for NOx in Spring and Autumn.NOx control should be increased in summer rather than winter when a strong VOC-limited regime occurs.Besides,regarding the emission control of industrial processes,on-road vehicle and residential sources shall be prioritized and the joint control area should be enlarged to include Shandong,Jiangxi and Hubei Province for effective O_(3)control.

关 键 词：PM_(2.5) O_(3) Response surface model Synergistic control pathway Cost-benefit analysis 

分 类 号：X51[环境科学与工程—环境工程]