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| 1 | PM_(2.5) in China:Measurements,sources,visibility and health effects,and mitigation显示文摘Concern over the health effects of fine particles in the ambient environment led the U.S. Environmental Protection Agency to develop the first standard for PM2.5(particulate matter less than 2.5 jxm) in 1997. The Particle Technology Laboratory at the University of Minnesota has helped to establish the PM2.5 standard by developing many instruments and samplers to perform atmospheric measurements. In this paper, we review various aspects of PM2.5, including its measurement, source apportionment, visibility and health effects, and mitigation. We focus on PM2.5 studies in China and where appropriate, compare them with those obtained in the U.S. Based on accurate PM2.5 sampling, chemical analysis, and source apportionment models, the major PM2.5 sources in China have been identified to be coal combustion, motor vehicle emissions, and industrial sources. Atmospheric visibility has been found to correlate well with PM2.5concentration. Sulfate, ammonium, and nitrate carried by PM2.5, commonly found in coal burning and vehicle emissions, are the dominant contributors to regional haze in China. Short-term exposure to PM2.5 is strongly associated with the increased risk of morbidity and mortality from cardiovascular and respiratory diseases in China. The strategy for PM2.5 mitigation must be based on reducing the pollutants from the two primary sources of coal-fired power plants and vehicle emissions. Although conventional Particulate Emission Control Devices(PECD) such as electrostatic precipitators in Chinese coal-fired power plants are generally effective for large particles, most of them may not have high collection efficiency of PM2.5.Baghouse filtration is gradually incorporated into the PECD to increase the PM2.5 collection efficiency.By adopting stringent vehicle emissions standard such as Euro 5 and 6, the emissions from vehicles can be gradually reduced over the years. An integrative approach, from collaboration among academia,government, and industries, can effectively manage and mitigate the PM2.5 pollution in China. | David Y.H.Pui Sheng-Chieh Chen Zhili Zuo | 2014 | Particuology2014，12，2： | 171 |
| 2 | Integrative filtration research and sustainable nanotechnology显示文摘用在一连串的工业的 nanomaterials 的宽应用,更多的担心在环境和生活系统上在纳米技术的工作地点,和含意关于 nanoparticles 的职业健康和安全正在被提起。研究在上环境,健康和安全(EHS ) 在公共接受,和最终的可持续性 nanomaterials 玩发出一个重要角色,纳米技术。我们现在的研究在 EHS 研究的三个方面上结果:nanoparticle 的在工作地点的 nanoparticles, nanoparticle 排放和暴露的描述和测量,和控制和消退释放使用过滤技术。nanoparticle 的测量聚结使用一台最新发达的仪器,通用 Nanoparticle 分析器,被讨论。在 nanocomposites 并且为在他们在一台飞行员规模设备的生产的硅 nanoparticles 的制造的碳 nanotubes 的 Nanoparticle 排放和暴露测量结果被介绍。nanoparticles 和 nanoparticle 的过滤聚结也被学习。 | Jing Wang Drew Thompson David Y.H.Pui | 2013 | Particuology2013，11，1： | 1 |
| 3 | Great wall of solar panels to mitigate yellow dust storm显示文摘Mitigation of the large scale yellow dust storm is a serious problem facing China. We propose the approach of building windbreak walls equipped with solar panels in the proximity of dust origins. The solar panels generate electricity in the sunny days; the walls break the wind and remove airborne dusts based on the impactor principle during wind storms. Preliminary calculation indicates the walls may be able to remove the major fraction of the airborne dusts and the generated electricity could be significant. More detailed studies are needed to prove the feasibility of the approach. | David Y.H.Pui Junji Cao Zhisheng An Jing Wang | 2014 | Particuology2014，12，2： | 0 |
| 4 | Reply to the comment显示文摘We are grateful for the experts'comments on our manuscript.We fullv understand the experts'concerns on the feasibility of the proposed idea of building windbreak walls equipped with solar panels to mitigate the yellow dust storm.As stated in the manuscript,we have not considered many important factors,such as the limits posed by solar panels,operability ofsolar panels under harsh conditions.the local weather and geomorphological conditions,electricity storage and transportation.financial aspects.etc. | David Y.H.Pui Junji Cao Zhisheng An Jing Wang | 2014 | Particuology2014，12，2： | 0 |
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