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Observation of black carbon aerosol in Beijing, 2003

LOU Shujuan, MAO Jietai, WANG Meihua

Frontiers of Environmental Science & Engineering 2007, Volume 1, Issue 3,   Pages 345-349 doi: 10.1007/s11783-007-0059-4

Abstract: The objective of this study was to determine the black carbon concentration in Beijing in 2003.The aerosol properties were measured using an Aethalometer and a tapered element oscillating microbalanceThe BC mass concentration in TSP, PM, and PM were obtained.The results indicated that in winter aerosol, 90% of BC exited in PM and 82.6% of BC exited in PM.

Keywords： carbon concentration     Beijing     tapered element     August     aethalometer    

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Evaluation of the influence of El Niño–Southern Oscillation on air quality in southern China from long-term historical observations

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1460-0

Abstract:

•Strong ENSO influence on AOD is found in southern China region.

Keywords： El Niño–Southern Oscillation     Aerosol concentration     Aerosol particle size     Contribution separation    

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Assessing the effects of different dielectrics on environmentally conscious powder-mixed EDM of difficult-to-machine material (WC-Co)

Jagdeep SINGH,Rajiv Kumar SHARMA

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 4,   Pages 374-387 doi: 10.1007/s11465-016-0388-8

Abstract:

Electrical discharge machining (EDM) is a well-known nontraditional manufacturing process to machine the difficult-to-machine (DTM) materials which have unique hardness properties. Researchers have successfully performed hybridization to improve this process by incorporating powders into the EDM process known as powder-mixed EDM process. This process drastically improves process efficiency by increasing material removal rate, micro-hardness, as well as reducing the tool wear rate and surface roughness. EDM also has some input parameters, including pulse-on time, dielectric levels and its type, current setting, flushing pressure, and so on, which have a significant effect on EDM performance. However, despite their positive influence, investigating the effects of these parameters on environmental conditions is necessary. Most studies demonstrate the use of kerosene oil as dielectric fluid. Nevertheless, in this work, the authors highlight the findings with respect to three different dielectric fluids, including kerosene oil, EDM oil, and distilled water using one-variable-at-a-time approach for machining as well as environmental aspects. The hazard and operability analysis is employed to identify the inherent safety factors associated with powder-mixed EDM of WC-Co.

Keywords： WC     hazard and operability analysis (HAZOP)     discharging     aerosol concentration     dielectrics     powders    

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Physical and chemical processes of wintertime secondary nitrate aerosol formation

Qi YING

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 348-361 doi: 10.1007/s11783-011-0343-1

Abstract: analysis (PA) scheme for gas and particulate matter (PM) to study the formation of secondary nitrate aerosolDuring the stagnant days, process analysis indicates that the nitrate concentration in the upper airto a net downward flux of nitrate through vertical diffusion and a rapid increase of surface nitrate concentration

Keywords： secondary nitrate aerosol     N2O5 heterogeneous reaction     process analysis    

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Calculation of collision frequency function for aerosol particles in free molecule regime in presence

Xiaowei LUO, Yannick BENICHOU, Suyuan YU

Frontiers in Energy 2013, Volume 7, Issue 4,   Pages 506-510 doi: 10.1007/s11708-013-0275-5

Abstract: The collision frequency function for aerosol particles has already been calculated for the free molecule

Keywords： aerosol particles     collision frequency function     coagulation    

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Computational fluid dynamics simulation of aerosol transport and deposition

Yingjie TANG, Bing GUO

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 362-377 doi: 10.1007/s11783-011-0365-8

Abstract: In this article computational fluid dynamics (CFD) simulation of aerosol transport and deposition, i.e. the transport and deposition of particles in an aerosol, is reviewed.The review gives a brief account of the basics of aerosol mechanics, followed by a description of theincluding CFD simulation of particle deposition in human respiratory tract and particle deposition in aerosolHowever, it is possible to take a balanced approach toward quantitative description of aerosol dispersion

Keywords： computational fluid dynamics (CFD)     aerosol     transport     deposition    

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Aerosol exposure assessment during reclaimed water utilization in China and risk evaluation in case of

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 7, doi: 10.1007/s11783-021-1516-1

Abstract:

• The Chinese population exposure habits were surveyed.

Keywords： Legionella     QMRA     Reclaimed water     Aerosol     Water reuse    

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Formation of secondary inorganic aerosol in a frigid urban atmosphere

Frontiers of Environmental Science & Engineering 2022, Volume 16, Issue 2, doi: 10.1007/s11783-021-1452-0

Abstract:

•Harbin showed relatively high threshold RH (80%) for apparent increase of SOR.

Keywords： Haze     Sulfate     Nitrate     Heterogeneous chemistry     Biomass burning     Northeast China    

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Effects of two transition metal sulfate salts on secondary organic aerosol formation in toluene/NO

Biwu CHU, Jiming HAO, Junhua LI, Hideto TAKEKAWA, Kun WANG, Jingkun JIANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 1,   Pages 1-9 doi: 10.1007/s11783-012-0476-x

Abstract: Aerosol phase reactions play a very important role on secondary organic aerosol (SOA) formation, andThese observations are consistent when varying metal sulfate aerosol concentrations.Their subsequent partitioning into the aerosol phase leads to the observed SOA formation enhancement.

Keywords： manganese sulfate     zinc sulfate     seed aerosols     toluene photooxidation     secondary organic aerosol    

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How aerosol direct effects influence the source contributions to PM

Litao Wang, Joshua S. Fu, Wei Wei, Zhe Wei, Chenchen Meng, Simeng Ma, Jiandong Wang

Frontiers of Environmental Science & Engineering 2018, Volume 12, Issue 3, doi: 10.1007/s11783-018-1014-2

Abstract: The objective of this paper is to evaluate the impacts of aerosol direct effects on air quality overresolutions, respectively, for the period of January 2013, with two sets of simulations with or without aerosol-meteorologyWhen considering the aerosol feedbacks, the contributions of industrial and domestic sources assessedOur results imply that the aerosol direct effects should not be ignored during severe pollution episodes

Keywords： Aerosol direct effect     PM2.5     Southern Hebei     WRF/Chem     Haze    

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Size-resolved aerosol ionic composition and secondary formation at Mount Heng in South Central China

Xinfeng WANG, Wenxing WANG, Likun XUE, Xiaomei GAO, Wei NIE, Yangchun YU, Yang ZHOU, Lingxiao YANG, Qingzhu ZHANG, Tao WANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 6,   Pages 815-826 doi: 10.1007/s11783-013-0503-6

Abstract: To understand the size-resolved aerosol ionic composition and the factors influencing secondary aerosolformation in the upper boundary layer in South Central China, size-segregated aerosol samples were collectedDuring non-dust-storm periods, the average PM concentration was 41.8 μg·m , contributing to 55% of the

Keywords： aerosol water-soluble ions     size distributions     secondary formation     dust storm     Mount Heng    

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Secondary aerosol formation in winter haze over the Beijing-Tianjin-Hebei Region, China

Dongjie Shang, Jianfei Peng, Song Guo, Zhijun Wu, Min Hu

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 2, doi: 10.1007/s11783-020-1326-x

Abstract: Abstract • Characteristics and interannual variation of aerosol pollution are illustrated. • Mechanismsof secondary aerosol formation in winter haze of North China are reviewed. • Directions in future studiesof secondary aerosol formation are provided.strict mitigation actions since 2013 and has achieved a significant reduction in the annual mean PM2.5 concentrationand secondary organics, in aerosol particles increase sharply, acting as the main contributors to aerosol

Keywords： Secondary aerosol formation     Regional haze     Photochemical reaction     Aqueous reaction     Chemical mechanism    

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The energy-environment nexus: aerosol science and technology enabling solutions

Pratim BISWAS, Wei-Ning WANG, Woo-Jin AN

Frontiers of Environmental Science & Engineering 2011, Volume 5, Issue 3,   Pages 299-312 doi: 10.1007/s11783-011-0351-1

Abstract: Aerosol science and technology is an enabling discipline that addresses the energy issue over both theseThe paper is a review of aspects of aerosol science and engineering that helps address carbon neutralityFuture approaches to effective harvesting of sunlight that are enabled by aerosol studies are discussed

Keywords： energy-environment nexus     aerosol science and technology     fossil fuels     carbon dioxide conversion     solar    

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Enrichment and transfer of polycyclic aromatic hydrocarbons (PAHs) through dust aerosol generation from

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 1, doi: 10.1007/s11783-023-1610-7

Abstract:

● Compositional patterns of PAHs in dust aerosol vary from soil during

Keywords： Dust aerosols     Enrichment factors (EFs)     Polycyclic aromatic hydrocarbons (PAHs)    

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Iron-carbon composite microspheres prepared through a facile aerosol-based process for the simultaneous

Bhanukiran SUNKARA,Yang SU,Jingjing ZHAN,Jibao HE,Gary L. MCPHERSON,Vijay T. JOHN

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 5,   Pages 939-947 doi: 10.1007/s11783-015-0807-9

Abstract: Iron-carbon (Fe-C) composite microspheres prepared through a facile aerosol-based process are effectiveThe aerosol-based process is an efficient method to prepare adsorptive-reactive composite particles in

Keywords： chlorinated ethene     iron-carbon     aerosol     adsorption     reductive dechlorination    

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Title Author Date Type Operation

Observation of black carbon aerosol in Beijing, 2003

LOU Shujuan, MAO Jietai, WANG Meihua

Journal Article

Evaluation of the influence of El Niño–Southern Oscillation on air quality in southern China from long-term historical observations

Journal Article

Assessing the effects of different dielectrics on environmentally conscious powder-mixed EDM of difficult-to-machine material (WC-Co)

Jagdeep SINGH,Rajiv Kumar SHARMA

Journal Article

Physical and chemical processes of wintertime secondary nitrate aerosol formation

Qi YING

Journal Article

Calculation of collision frequency function for aerosol particles in free molecule regime in presence

Xiaowei LUO, Yannick BENICHOU, Suyuan YU

Journal Article

Computational fluid dynamics simulation of aerosol transport and deposition

Yingjie TANG, Bing GUO

Journal Article

Aerosol exposure assessment during reclaimed water utilization in China and risk evaluation in case of

Journal Article

Formation of secondary inorganic aerosol in a frigid urban atmosphere

Journal Article

Effects of two transition metal sulfate salts on secondary organic aerosol formation in toluene/NO

Biwu CHU, Jiming HAO, Junhua LI, Hideto TAKEKAWA, Kun WANG, Jingkun JIANG

Journal Article

How aerosol direct effects influence the source contributions to PM

Litao Wang, Joshua S. Fu, Wei Wei, Zhe Wei, Chenchen Meng, Simeng Ma, Jiandong Wang

Journal Article

Size-resolved aerosol ionic composition and secondary formation at Mount Heng in South Central China

Xinfeng WANG, Wenxing WANG, Likun XUE, Xiaomei GAO, Wei NIE, Yangchun YU, Yang ZHOU, Lingxiao YANG, Qingzhu ZHANG, Tao WANG

Journal Article

Secondary aerosol formation in winter haze over the Beijing-Tianjin-Hebei Region, China

Dongjie Shang, Jianfei Peng, Song Guo, Zhijun Wu, Min Hu

Journal Article

The energy-environment nexus: aerosol science and technology enabling solutions

Pratim BISWAS, Wei-Ning WANG, Woo-Jin AN

Journal Article

Enrichment and transfer of polycyclic aromatic hydrocarbons (PAHs) through dust aerosol generation from

Journal Article

Iron-carbon composite microspheres prepared through a facile aerosol-based process for the simultaneous

Bhanukiran SUNKARA,Yang SU,Jingjing ZHAN,Jibao HE,Gary L. MCPHERSON,Vijay T. JOHN

Journal Article