scholarly journals Establishment of evaluation index system for synergistic monitoring effect of air pollution prevention and control in Jing-Jin-Ji area

2018 ◽  
Vol 4 (2) ◽  
pp. 55-66
Author(s):  
Yunna Wu ◽  
Shaoyu Ji ◽  
Ruhang Xu ◽  
Yuanxin Liu ◽  
Jinchao Li
Keyword(s):  
Air Pollution ◽  
Index System ◽  
Prevention And Control ◽  
Pollution Prevention ◽  
Evaluation Process ◽  
Evaluation Index System ◽  
Evaluation Index ◽  
The Index System ◽  
Pollution Prevention And Control ◽  
And Control

Recently, synergistic monitoring of air pollution prevention and control in Jing-Jin-Ji area is coming up to an important issue in environment protection field under the circumstances of cooperation between Beijing, Tianjin and Hebei region. It is of great concern for government to maintain the effectiveness of monitoring effect so that the prevention and control of air pollution is guaranteed, further the air condition of Jing-Jin-Ji area would be improved. For the purpose of evaluating the synergistic monitoring effectiveness, a evaluation index system for air pollution prevention and control in Jing-Jin-Ji area should be established so as to conduct the evaluation process in a scientific and rational way. By analyzing the general principles of setting up an index system, we summarize six principles for the establishment which includes comprehensiveness, purpose, simplicity, independence, hierarchy and feasibility. On the basis of the principles mentioned above, we further break the evaluation problem into 4 targets and 23 indexes so that the index system is established. Through the index system we proposed, government and enterprises can effectively evaluate the synergistic monitoring effect of air pollution prevention and control in Jing-Jin-Ji area so that scholars and supervisors are capable to further study relative problems.

scholarly journals Long-term trends and drivers of aerosol pH in eastern China

2021 ◽  
Author(s):  
Min Zhou ◽  
Guangjie Zheng ◽  
Hongli Wang ◽  
Liping Qiao ◽  
Shuhui Zhu ◽  
...  
Keyword(s):  
Air Pollution ◽  
Prevention And Control ◽  
Action Plan ◽  
Health Effect ◽  
Eastern China ◽  
Pollution Prevention ◽  
Control Action ◽  
Haze Pollution ◽  
Pollution Prevention And Control ◽  
And Control

Abstract. Aerosol acidity plays a key role in regulating the chemistry and toxicity of atmospheric aerosol particles. The trend of aerosol pH and its drivers are crucial in understanding the multiphase formation pathways of aerosols. Here, we reported the first trend analysis of aerosol pH from 2011 to 2019 in eastern China. The implementation of the Air Pollution Prevention and Control Action Plan leads to −35.8 %, −37.6 %, −9.6 %, −81.0 % and 1.2 % changes of PM2.5, SO42−, NHx, NVCs and NO3− in YRD during this period. Different from the fast changes of aerosol compositions due to the implementation of the Air Pollution Prevention and Control Action Plan, aerosol pH shows a moderate change of −0.24 unit over the 9 years. Besides the multiphase buffer effect, the opposite effects of SO42− and non-volatile cations changes play key roles in determining the moderate pH trend, contributing to a change of +0.38 and −0.35 unit, respectively. Seasonal variations in aerosol pH were mainly driven by the temperature, while the diurnal variations were driven by both temperature and relative humidity. In the future, SO2, NOx and NH3 emissions are expected to be further reduced by 86.9 %, 74.9 % and 41.7 % in 2050 according to the best health effect pollution control scenario (SSP1-26-BHE). The corresponding aerosol pH in eastern China is estimated to increase by ~0.9, resulting in 8 % more NO3− and 35 % less NH4+ partitioning/formation in the aerosol phase, which suggests a largely reduced benefit of NH3 and NOx emission control in mitigating haze pollution in eastern China.

Cost-benefit analysis of China’s Action Plan for Air Pollution Prevention and Control

2019 ◽  
Vol 6 (4) ◽  
pp. 524-537 ◽  
Author(s):  
Jing Zhang ◽  
Hongqiang Jiang ◽  
Wei Zhang ◽  
Guoxia Ma ◽  
Yanchao Wang ◽  
...  
Keyword(s):  
Air Pollution ◽  
Prevention And Control ◽  
Cost Benefit Analysis ◽  
Action Plan ◽  
Pollution Prevention ◽  
Cost Benefit ◽  
Benefit Analysis ◽  
Pollution Prevention And Control ◽  
And Control
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