An integrated MM5–CMAQ modeling approach for assessing trans-boundary PM10 contribution to the host city of 2008 Olympic summer games—Beijing, China

Chen, D.S.; Cheng, Shuiyuan; Liu, L.; Chen, T.; Guo, Xulin

doi:10.1016/j.atmosenv.2006.09.045

Cited by 106 publications

(56 citation statements)

References 18 publications

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“…The MCIP (Meteorology-Chemistry Interface Processor) was used to process and transform the hourly MM5 outputs from 35 vertical levels into 12 levels with the format required by the CMAQ model. More detailed descriptions of the MM5-CMAQ modeling system and setup can be found in previous papers (Chen et al, 2007;Zhou et al, 2012c). …”

Section: Mm5-cmaq Modeling Systemmentioning

confidence: 99%

“…The MM5 model was used for providing the 4D meteorological data required by the CMAQ model. The details of the required data by MM5, such as the topography data, 3D first-guess meteorological fields, and the meteorological measurements, as well as the physical options used were the same as those described in Chen et al (2007) and Zhou et al (2012c). As for the CMAQ model, emission inventory is another important input data.…”

Section: Mm5-cmaq Modeling Systemmentioning

confidence: 99%

“…A zero-out method was applied to calculate TBCR using two scenarios, including the Zero Emission Reduction Scenario (ZERS) and the Emission Reduction Scenario (ERS) (Chen et al, 2007). The ZERS was corresponding to the base scenario under which the MM5-CMAQ model was run using the original emission inventories.…”

Section: Calculation Of Trans-boundary Contribution Ratio (Tbcr)mentioning

confidence: 99%

“…Particularly, air quality models have been commonly applied to investigate such regional air pollutant transport (Chen et al, 2007). Among various models, the CMAQ/Model-3 developed by US EPA has obtained extensive applications.…”

Section: Introductionmentioning

confidence: 99%

“…Among various models, the CMAQ/Model-3 developed by US EPA has obtained extensive applications. For example, Chen et al (2007) examined the trans-boundary transport of PM 10 to Beijing, and obtained the trans-boundary contribution ratios (TBCRs) from its surrounding regions using a meteorological model (MM5) and an air quality model (CMAQ). Wang et al (2010) utilized the HYSPLIT and MM5-CMAQ models to study the PM 10 pollution problem in Beijing, and found that the southwest transport pathway was closely associated with the increasing phase of its PM 10 pollution processes.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A Monitoring and Modeling Study to Investigate Regional Transport and Characteristics of PM2.5 Pollution

Lang

Cheng

et al. 2013

Aerosol Air Qual. Res.

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In this study, the regional transport and characteristics of PM 2.5 pollution were examined through a case study in Beijing, China. The results from an intensive monitoring program indicate that the inorganic particles (sulfate, nitrate, and ammonium), organic carbons, and the elements accounted for 35.5, 24.2, and 15.3% of the total PM 2.5 on an annual average basis, respectively. The proportions of such PM 2.5 components also showed clear seasonal variations. An integrated MM5-CMAQ modeling system was then developed to examine the regional transport of PM 2.5 and its components in Beijing within four typical months of 2010. The results indicate that the annual average total trans-boundary contribution ratio (TBCR) is 42.2, 46.3, 77.4, and 61.6% for the concentrations of PM 2.5 , sulfate, nitrate, and ammonium, respectively. A logarithmic relationship was found between the total TBCR and the PM 2.5 concentrations in Beijing for different seasons. Further investigations showed that trans-boundary transport played a major role in Beijing's PM 2.5 concentrations during the period of high pollution levels, with an annual average TBCR of 54.6%. As a result, the control of PM 2.5 pollution in Beijing needs effective cooperation between Beijing and its surrounding regions, especially during periods of heavy pollution.

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Section: Mm5-cmaq Modeling Systemmentioning

confidence: 99%

Section: Mm5-cmaq Modeling Systemmentioning

confidence: 99%

Section: Calculation Of Trans-boundary Contribution Ratio (Tbcr)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A Monitoring and Modeling Study to Investigate Regional Transport and Characteristics of PM2.5 Pollution

Lang

Cheng

et al. 2013

Aerosol Air Qual. Res.

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Heavy Air Pollution in Beijing and Possible Impact on Olympic Athletes

Salthammer¹

2008

CLEAN Soil Air Water

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In 2001 the Olympic Games were awarded to the city of Beijing, China's second-largest industrial center after Shanghai. Although the extreme air pollution in Greater Beijing has already been examined for some time in the scientific literature, it only gained public interest recently. The article summarizes the scientific facts. In the modern era the Olympic Games are serving increasingly as a platform for economic and political interests. The original concept of a sporting competition between different peoples has very much stepped into the background. The International Olympic Committee (IOC) today is an organization with structures resembling a multicorporate enterprise. Athletes are largely exploited and must place their sporting capabilities at the service of the state and business. When in 2001 the games were awarded to the city of Beijing, it may therefore be guessed that only a few of those involved in this decision had considered the possible effects of the extreme air pollution in Greater Beijing, particularly on endurance athletes such as long-distance runners, triathletes and cyclists. Although this subject has already been examined for some time in the scientific literature [1, 2], it was not discussed in the public arena until the world's best marathon runner Haile Gebrselassie, who is also an asthmatic, declared that he would not take part in the marathon event.Beijing is located at 398 559 N and 1168 269 E, at an altitude of 43 m above sea level. The city has a temperate continental climate with hot, humid summers and cold, dry winters. The summer is dominated by the monsoon from the south with sometimes heavy rainfall in July and August while winter sees cold NNW winds blowing in from Inner Mongolia. In the spring the climate is affected by sandstorms from the desert regions located not far distant. Buildings are heated from November until March.Beijing is China's second-largest industrial center after Shanghai. Bituminous coal (approx. 63%) and mineral oil (approx. 20%) are the preferred energy carriers. Greater Beijing has a population of around 15 million and the city can therefore be counted amongst the world's megacities. According to Chan and Yao When air-borne particles are measured generally three variables are cited: TSP (Total Suspended Particles) denotes the total concentration, PM10 (Particulate Matter a 10 lm) is the thoracic fraction and PM2.5 the respirable. Due to the influence of sandstorms extremely high particle concentrations can be measured in Beijing particularly in the spring. On the other hand, TSP values of 500 lg/ m 3 and over are possible even at low wind speeds and especially in the winter months. The influence of natural and man-made causes on extreme levels of particles in Beijing has been investigated by Song et al. [6] by means of trajectory analysis. Even when considered on a seasonal basis, particle concentrations and compositions are

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Reductions of PM2.5 in Beijing-Tianjin-Hebei urban agglomerations during the 2008 Olympic Games

Xin

Wang

et al. 2012

Adv. Atmos. Sci.

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An integrated MM5–CMAQ modeling approach for assessing trans-boundary PM10 contribution to the host city of 2008 Olympic summer games—Beijing, China

Cited by 106 publications

References 18 publications

A Monitoring and Modeling Study to Investigate Regional Transport and Characteristics of PM2.5 Pollution

A Monitoring and Modeling Study to Investigate Regional Transport and Characteristics of PM2.5 Pollution

Heavy Air Pollution in Beijing and Possible Impact on Olympic Athletes

Reductions of PM2.5 in Beijing-Tianjin-Hebei urban agglomerations during the 2008 Olympic Games

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