scholarly journals Investment perspectives on costs for air pollution control affect the optimal use of emission control measures

2018 ◽  
Vol 21 (3) ◽  
pp. 695-705
Author(s):  
Stefan Åström ◽  
Gregor Kiesewetter ◽  
Wolfgang Schöpp ◽  
Robert Sander ◽  
Sofia Andersson
Keyword(s):  
Air Pollution ◽  
Pollution Control ◽  
Emission Control ◽  
Control Measures ◽  
Air Pollution Control ◽  
Emission Control Measures

scholarly journals Attributions of meteorological and emission factors to the 2015 winter severe haze pollution episodes in China's Jing-Jin-Ji area

2017 ◽  
Vol 17 (4) ◽  
pp. 2971-2980 ◽  
Author(s):  
Tingting Liu ◽  
Sunling Gong ◽  
Jianjun He ◽  
Meng Yu ◽  
Qifeng Wang ◽  
...  
Keyword(s):  
Air Pollution ◽  
Emission Control ◽  
Northern China ◽  
Air Pollutant ◽  
Control Measures ◽  
Air Pollution Control ◽  
Emission Data ◽  
Haze Pollution ◽  
Stable Conditions ◽  
Emission Control Measures

Abstract. In the 2015 winter month of December, northern China witnessed the most severe air pollution phenomena since the 2013 winter haze events occurred. This triggered the first-ever red alert in the air pollution control history of Beijing, with an instantaneous fine particulate matter (PM2. 5) concentration over 1 mg m−3. Air quality observations reveal large temporal–spatial variations in PM2. 5 concentrations over the Beijing–Tianjin–Hebei (Jing-Jin-Ji) area between 2014 and 2015. Compared to 2014, the PM2. 5 concentrations over the area decreased significantly in all months except November and December of 2015, with an increase of 36 % in December. Analysis shows that the PM2. 5 concentrations are significantly correlated with the local meteorological parameters in the Jing-Jin-Ji area such as the stable conditions, relative humidity (RH), and wind field. A comparison of two month simulations (December 2014 and 2015) with the same emission data was performed to explore and quantify the meteorological impacts on the PM2. 5 over the Jing-Jin-Ji area. Observation and modeling results show that the worsening meteorological conditions are the main reasons behind this unusual increase of air pollutant concentrations and that the emission control measures taken during this period of time have contributed to mitigate the air pollution ( ∼  9 %) in the region. This work provides a scientific insight into the emission control measures vs. the meteorology impacts for the period.

scholarly journals Contributions of meteorology and emission to the 2015 winter severe haze pollution episodes in Northern China

2016 ◽  
Author(s):  
Ting Ting Liu ◽  
Sunling Gong ◽  
Meng Yu ◽  
Qi Chao Zhao ◽  
Huai Rui Li ◽  
...  
Keyword(s):  
Air Pollution ◽  
Emission Control ◽  
Northern China ◽  
Air Pollutant ◽  
Control Measures ◽  
Air Pollution Control ◽  
Pollutant Concentrations ◽  
Haze Pollution ◽  
Air Pollutant Concentrations ◽  
Emission Control Measures

Abstract. Northern China in the 2015 winter months of November and December has witnessed the most severe air pollution phenomena since the 2013 winter haze events occurred, which triggered the first ever Red Alert in the air pollution control history of Beijing, with an instantaneous PM2.5 concentration over 1 mg m−3. Analysis and modeling results show that the worsening meteorology conditions are the main reason behind this unusual increase of air pollutant concentrations and the emission control measures taken during this period of time have contributed to mitigate the air pollution in the region. This work provides a scientific insight of the emission control measures vs. meteorology impacts for the period.

scholarly journals Attributions of meteorological and emission factors to the 2015 winter severe haze pollution episodes in Northern China

2016 ◽  
Author(s):  
Tingting Liu ◽  
Sunling Gong ◽  
Meng Yu ◽  
Qichao Zhao ◽  
Huairui Li ◽  
...  
Keyword(s):  
Air Pollution ◽  
Emission Control ◽  
Northern China ◽  
Air Pollutant ◽  
Control Measures ◽  
Air Pollution Control ◽  
Pollutant Concentrations ◽  
Haze Pollution ◽  
Air Pollutant Concentrations ◽  
Emission Control Measures

Abstract. Northern China in the 2015 winter months of November and December has witnessed the most severe air pollution phenomena since the 2013 winter haze events occurred, which triggered the first ever Red Alert in the air pollution control history of Beijing, with an instantaneous PM2.5 concentration over 1 mg m−3. Analysis and modeling results show that the worsening meteorology conditions are the main reason behind this unusual increase of air pollutant concentrations and the emission control measures taken during this period of time have contributed to mitigate the air pollution in the region. This work provides a scientific insight of the emission control measures vs. meteorology impacts for the period.

scholarly journals Air pollution control and decreasing new particle formation lead to strong climate warming

2011 ◽  
Vol 11 (9) ◽  
pp. 25991-26007 ◽  
Author(s):  
R. Makkonen ◽  
A. Asmi ◽  
V.-M. Kerminen ◽  
M. Boy ◽  
A. Arneth ◽  
...  
Keyword(s):  
Air Pollution ◽  
Pollution Control ◽  
Cloud Condensation Nuclei ◽  
Particle Formation ◽  
Control Measures ◽  
Air Pollution Control ◽  
New Particle Formation ◽  
Anthropogenic Aerosol ◽  
Aerosol Forcing ◽  
Year 2000

Abstract. The number of cloud droplets determines several climatically relevant cloud properties. A major cause for the high uncertainty in the indirect aerosol forcing is the availability of cloud condensation nuclei (CCN), which in turn is highly sensitive to atmospheric new particle formation. Here we present the effect of new particle formation on anthropogenic aerosol forcing in present-day (year 2000) and future (year 2100) conditions. The total aerosol forcing (−1.61 W m−2 in year 2000) is simulated to be greatly reduced in the future, to −0.23 W m−2, mainly due to decrease in SO2 emissions and resulting decrease in new particle formation. With the total aerosol forcing decreasing in response to air pollution control measures taking effect, warming from increased greenhouse gas concentrations can potentially increase at a very rapid rate.

scholarly journals Using Costs and Health Benefits to Estimate the Priority of Air Pollution Control Action Plan: A Case Study in Taiwan

2020 ◽  
Vol 10 (17) ◽  
pp. 5970
Author(s):  
Hsin-Chih Lai ◽  
Min-Chuan Hsiao ◽  
Je-Liang Liou ◽  
Li-Wei Lai ◽  
Pei-Chih Wu ◽  
...  
Keyword(s):  
Air Pollution ◽  
Air Quality ◽  
Pollution Control ◽  
Action Plan ◽  
Health Benefits ◽  
Control Measures ◽  
Cost Ratio ◽  
Air Pollution Control ◽  
Kriging Method ◽  
Quality Modeling

A comparative analysis was conducted between the costs and health benefits of the Air Pollution Control Action Plan (APCAP), which can be implemented in any country to improve air quality and human health. In this study, air quality modeling was used to simulate several scenarios and implement the Kriging method to describe the PM2.5 reduction concentration instantly. Then, health benefits were estimated using the environmental benefit mapping and analysis program (BenMAP) with results from the air quality modeling and Kriging method. To estimate the priority of APCAP, 14 pollution control measures that cover point, mobile, and area sources of air pollution in Taiwan were analyzed. The results indicate that the health benefits of the Taiwan APCAP (TAPCAP) are generally greater than the technical costs. Thus, the implementation of this strategy may result in net benefits. In addition, the benefit-to-control cost ratio for health for the 14 pollution control measures was calculated. The results provide evidence to prioritize the implementation of air quality policies with a higher benefit-cost ratio.

The policy implementation strategies of county cadres: Political instrument and flexible local governance

2020 ◽  
pp. 0920203X2096823
Author(s):  
Gang Tian ◽  
Wen-Hsuan Tsai
Keyword(s):  
Air Pollution ◽  
Pollution Control ◽  
Local Governments ◽  
Local Governance ◽  
Implementation Strategies ◽  
Control Measures ◽  
The Political ◽  
Air Pollution Control ◽  
Grass Roots ◽  
Political Risks

Using the concept of ‘hedging’, we explore how local cadres in China deviate from central policies in order to serve local interests and, while doing so, avoid being called to account by their superiors. Political signals enable cadres to decide when to invest more resources into the implementation of certain policies. In this way, they optimize their performance and avoid the political risks involved in failing to carry out their designated tasks. This article uses county Y as an example in a discussion of county-level implementation of policies related to economic growth and air pollution control. We find that local cadres weaken the functions of the superior ‘special inspection team’ (专项督察组, hereafter inspection team), treating them as political instruments used by the central and local authorities to ensure a greater level of responsiveness at the grass roots. Information concerning the imminent arrival of an inspection team in their locality acts as a signal for cadres to allocate more resources to the enforcement of air pollution control measures, thus maximizing their performance in this area. Through this research, we have endeavoured to provide a deeper understanding of the operating logic of Chinese local governments and the behaviour of county cadres.

scholarly journals Effects of air pollution control measures on air quality improvement in Guangzhou, China

2019 ◽  
Vol 244 ◽  
pp. 127-137 ◽  
Author(s):  
Meifang Yu ◽  
Yun Zhu ◽  
Che-Jen Lin ◽  
Shuxiao Wang ◽  
Jia Xing ◽  
...  
Keyword(s):  
Air Pollution ◽  
Quality Improvement ◽  
Air Quality ◽  
Pollution Control ◽  
Control Measures ◽  
Air Pollution Control ◽  
Air Quality Improvement

scholarly journals MAX-DOAS measurements of tropospheric NO<sub>2</sub> and HCHO in Nanjing and the comparison to OMI observations

2019 ◽  
Author(s):  
Ka Lok Chan ◽  
Zhuoru Wang ◽  
Aijun Ding ◽  
Klaus-Peter Heue ◽  
Yicheng Shen ◽  
...  
Keyword(s):  
Air Pollution ◽  
Pollution Control ◽  
Yangtze River ◽  
Yangtze River Delta ◽  
Satellite Observations ◽  
River Delta ◽  
Control Measures ◽  
Air Pollution Control ◽  
The Yangtze River ◽  
The Yangtze River Delta

Abstract. In this paper, we present long term observations of atmospheric nitrogen dioxide (NO2) and formaldehyde (HCHO) in Nanjing using a Multi-AXis Differential Optical Absorption Spectroscopy (MAX-DOAS) instrument. Ground based MAX-DOAS measurements were performed from April 2013 to February 2017. The MAX-DOAS measurements of NO2 and HCHO vertical column densities (VCDs) are used to validate OMI satellite observations over Nanjing. The comparison shows that the OMI observations of NO2 correlate well with the MAX-DOAS data with Pearson correlation coefficient (R) of 0.91. However, OMI observations are on average a factor of 3 lower than the MAX-DOAS measurements. Replacing the a priori NO2 profiles by the MAX-DOAS profiles in the OMI NO2 VCD retrieval would increase the OMI NO2 VCDs by ~ 30 % with correlation nearly unchanged. The comparison result of MAX-DOAS and OMI observations of HCHO VCD shows a good agreement with R of 0.75 and the slope of the regression line is 0.99. We developed a new technique to assemble the source contribution map using backward trajectory analysis. The age weighted backward propagation approach is applied to the MAX-DOAS measurements of NO2 and HCHO to reconstruct the spatial distribution of NO2 and HCHO over the Yangtze River Delta during summer and winter time. The reconstructed NO2 fields show a distinct agreement with OMI satellite observations. However, due to the short atmospheric lifetime of HCHO, the backward propagated HCHO data does not show a strong spatial correlation with the OMI HCHO observations. The result shows the MAX-DOAS measurements are sensitive to the air pollution transportation in the Yangtze River Delta, indicating the air quality in Nanjing is significantly influenced by regional transportation of air pollutants. The MAX-DOAS data are also used to evaluate the effectiveness of air pollution control measures implemented during the Youth Olympic Games 2014. The MAX-DOAS data show a significant reduction of ambient aerosol, NO2 and HCHO (30 %–50 %) during the Youth Olympic Games. Our results provide a better understanding of the transportation and sources of pollutants in over the Yangtze River Delta as well as the effect of emission control measures during large international event, which are important for the future design of air pollution control policies.

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