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Particulate matter 2.5 triggers airway inflammation and bronchial hyperresponsiveness in mice by activating

Frontiers of Medicine 2021, Volume 15, Issue 5,   Pages 750-766 doi: 10.1007/s11684-021-0839-4

Abstract: Exposure to particulate matter 2.5 (PM2.5) potentially triggers airway inflammation by activating nuclearHowever, the function and specific mechanisms of SIRT2 in PM2.5-induced airway inflammation are largelyResults revealed that PM2.5 exposure lowered the expression and activity of SIRT2 in bronchial tissuesinflammation, and bronchial hyperresponsiveness were deteriorated in SIRT2 knockout mice exposed to PM2.5Our findings provide novel insights into the molecular mechanisms underlying the toxicity of PM2.5 exposure

Keywords: particulate matter 2.5     sirtuin 2     p65     airway inflammation     bronchial hyperresponsiveness     triptolide    

PM2.5 over North China based on MODIS AOD and effect of meteorological elements during 2003‒2015

Youfang Chen, Yimin Zhou, Xinyi Zhao

Frontiers of Environmental Science & Engineering 2020, Volume 14, Issue 2, doi: 10.1007/s11783-019-1202-8

Abstract: There were one high value center for PM2.5 pollution and two low value centers.In 2004, 2009 and after 2013, PM2.5 concentration was relatively low.making it unfavorable for the prediction and prevention of PM2.5 pollutions.The tempo-spatial characteristics of PM2.5 and the influence of meteorological elements on PM2.5 is discussedAlthough, in 2004, 2009 and dates after 2013, PM2.5 concentrations were relatively low.

Keywords: Aerosol optical depth     PM2.5     MODIS     Mixed effect model     Canonical correlation analysis    

Analysis of flue gas pollutants deep-removal technology for coal-fired power plant

Zhang Xiaolu

Strategic Study of CAE 2014, Volume 16, Issue 10,   Pages 47-51

Abstract:

In recent years, frequent haze weather makes PM2.5 becoming the publicThe control of PM2.5 has been added in the 2012 release "ambient air quality standard".Under the situation that our current flue gas pollutant control technology is difficult to remove PM2.5the Flue Gas Pollutants Deep-removal Technology (DRT) for Coal-fired Power Plant for deep-removing PM2.5the necessity and existing problems of developing DRT suitable for China, this study focused on the PM2.5

Keywords: coal-fired power plant     flue gas pollutants     deep-removal     PM2.5 removal    

Particle size distributions, PM

Can DONG, Lingxiao YANG, Chao YAN, Qi YUAN, Yangchun YU, Wenxing WANG

Frontiers of Environmental Science & Engineering 2013, Volume 7, Issue 1,   Pages 55-65 doi: 10.1007/s11783-012-0411-1

Abstract: In this study, we collected particles with aerodynamic diameter≤2.5 μm (PM ) from three different public

Keywords: indoor air quality     indoor/outdoor ratios     size distributions     particles with aerodynamic diameter≤2.5 μm(PM2.5)     water-soluble ions    

A Study of the Atmospheric Environmental Capacity of Jingjinji and of the Five Northwestern Provinces and Autonomous Regions in China

Hao Jiming,Xu Jiayu,Wu Jian and Ma Qiao

Strategic Study of CAE 2017, Volume 19, Issue 4,   Pages 13-19 doi: 10.15302/J-SSCAE-2017.04.003

Abstract: environmental capacities for sulfur dioxide (SO2), nitrogen oxides (NOx), fine particulate matter (PM2.5calculated for the various provinces with the constraint condition of the annual average ambient PM2.5The results indicate that the total emissions of SO2, NOx, primary PM2.5, VOCs and NH3 emited from the

Keywords: PM2.5     air quality     environmental capacity    

Temporal variation of PM-associated health effects in Shijiazhuang, Hebei

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1376-0

Abstract:

•Annual mean PM2.5 in Shijiazhuang were 87, 95, and 82 µg

Keywords: PM2.5     Health effects     Integrated exposure-response model     Shijiazhuang    

PM concentration declining saves health expenditure in China

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 7, doi: 10.1007/s11783-023-1690-4

Abstract: >

● Monthly hospitalization expenses are sensitive to increases in PM2.5

Keywords: Air pollution     Health expenditure     PM2.5 concentration     Economic impact     Heterogeneous effect    

Source apportionment of PM

Wei WEN,Shuiyuan CHENG,Lei LIU,Gang WANG,Xiaoqi WANG

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 5, doi: 10.1007/s11783-016-0839-9

Abstract: The new hybrid approaches for the source apportionment of PM were proposed. The hybrid approach can be used for source apportionment of secondary species. The metallurgy industry was the biggest contribution source to PM of Tangshan. In winter, the contribution from the coal-fired boilers was the largest one. The objective of this paper is to propose a hybrid approach for the source apportionment of primary and secondary species of PM in the city of Tangshan. The receptor-based PMF (Positive Matrix Factorization) is integrated with the emission inventory (EI) to form the first hybrid method for the source apportionment of the primary species. The hybrid CAMx-PSAT-CP (Comprehensive Air Quality Model with Extensions – Particulate Source Apportionment Technology – Chemical Profile) approach is then proposed and used for the source apportionment of the secondary species. The PM sources identified for Tangshan included the soil dust, the metallurgical industry, power plants, coal-fired boilers, vehicles, cement production, and other sources. It is indicated that the PM pollution is a regional issue. Among all the identified sources, the metallurgy industry was the biggest contribution source to PM , followed by coal-fired boilers, vehicles and soil dust. The other-source category plays a crucial role for PM , particularly for the formation of secondary species and aerosols, and these other sources include non-specified sources such as agricultural activities, biomass combustion, residential emissions, etc. The source apportionment results could help the local authorities make sound policies and regulations to better protect the citizens from the local and regional PM pollution. The study also highlights the strength of utilizing the proposed hybrid approaches in the identification of PM sources. The techniques used in this study show considerable promise for further application to other regions as well as to identify other source categories of PM .

Keywords: Secondary species     Emission inventory     PM2.5     Source apportionment    

Spatial and Temporal Variations in the Atmospheric Age Distribution of Primary and Secondary Inorganic Aerosols in China Article

Xiaodong Xie, Qi Ying, Hongliang Zhang, Jianlin Hu,

Engineering 2023, Volume 28, Issue 9,   Pages 117-129 doi: 10.1016/j.eng.2022.03.013

Abstract: simulation of the age distributions of the primary and secondary inorganic fine particulate matter (PM2.5The results indicate that primary PM2.5 (PPM) and ammonium mainly originate from fresh localThe age information of PM2.5, provided by the age-resolved CMAQ model, can help policymakers

Keywords: Atmospheric age     PM2.5     CMAQ model     Control strategy    

Diverse bacterial populations of PM in urban and suburb Shanghai, China

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 3, doi: 10.1007/s11783-020-1329-7

Abstract:

• Urban aerosols harbour diverse bacterial communities in Shanghai.

Keywords: PM2.5     Bacteria     16S rRNA     SEM analysis     Shanghai City    

Local and regional contributions to PM in the Beijing 2022 Winter Olympics infrastructure areas during haze episodes

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1434-2

Abstract:

• Regional transportation contributed more than local emissions during haze episodes.

Keywords: 2022 Winter Olympics     PM2.5     Source apportionment    

Understand the local and regional contributions on air pollution from the view of human health impacts

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 5, doi: 10.1007/s11783-020-1382-2

Abstract:

• PM2.5-related deaths were estimated to be 227 thousand

Keywords: PM2.5     Regional transport     Local emissions     Health impact     Environmental inequality    

Spatial and Temporal Distribution of PM

Xiao-hong Chen,Xiang-bo Tang

Frontiers of Engineering Management 2016, Volume 3, Issue 2,   Pages 171-181 doi: 10.15302/J-FEM-2016017

Abstract: Utilizing the initial hourly monitoring data of PM concentrations at 23 monitoring sites across the Chang-Zhu-Tan city cluster between January 2013 and February 2014 that released in Real-time Air Quality Reporting System in Hunan Province, this paper draws diagrams and analyzes the change rule of the pollutants concentration over time. In addition, this paper studies the regional distribution of PM seasonal pollution in the vicinity of the monitoring sites using ArcGIS geographic information system with the Kriging interpolation method. On this basis, this paper puts forward some effective control strategies to cope with regional PM pollution combined with the information of industry distribution and development status in the Chang-Zhu-Tan city cluster.

Keywords: PM2.5     spatial and temporal distribution     ArcGIS     the chang-Zhu-Tan city cluster    

Chemical characteristics of fine particulate matter emitted from commercial cooking

Bing PEI,Hongyang CUI,Huan LIU,Naiqiang YAN

Frontiers of Environmental Science & Engineering 2016, Volume 10, Issue 3,   Pages 559-568 doi: 10.1007/s11783-016-0829-y

Abstract: The chemical characteristics of fine particulate matter (PM ) emitted from commercial cooking were explored in this study. Three typical commercial restaurants in Shanghai, i.e., a Shanghai-style one (SHS), a Sichuan-style one (SCS) and an Italian-style one (ITS), were selected to conduct PM sampling. Particulate organic matter (POM) was found to be the predominant contributor to cooking-related PM mass in all the tested restaurants, with a proportion of 69.1% to 77.1%. Specifically, 80 trace organic compounds were identified and quantified by gas chromatography/mass spectrometry (GC/MS), which accounted for 3.8%–6.5% of the total PM mass. Among the quantified organic compounds, unsaturated fatty acids had the highest concentration, followed by saturated fatty acids. Comparatively, the impacts of other kinds of organic compounds were much smaller. Oleic acid was the most abundant single species in both SCS and ITS. However, in the case of SHS, linoleic acid was the richest one. ITS produced a much larger mass fraction of most organic species in POM than the two Chinese cooking styles except for monosaccharide anhydrides and sterols. The results of this study could be utilized to explore the contribution of cooking emissions to PM pollution and to develop the emission inventory of PM from cooking, which could then help the policy-makers design efficient treatment measures and control strategies on cooking emissions in the future.

Keywords: commercial cooking     PM2.5     chemical characteristics     organic matter    

Title Author Date Type Operation

A New Model Using Multiple Feature Clustering and Neural Networks for Forecasting Hourly PM2.5

Hui Liu, Zhihao Long, Zhu Duan, Huipeng Shi

Journal Article

Particulate matter 2.5 triggers airway inflammation and bronchial hyperresponsiveness in mice by activating

Journal Article

PM2.5 over North China based on MODIS AOD and effect of meteorological elements during 2003‒2015

Youfang Chen, Yimin Zhou, Xinyi Zhao

Journal Article

Analysis of flue gas pollutants deep-removal technology for coal-fired power plant

Zhang Xiaolu

Journal Article

Particle size distributions, PM

Can DONG, Lingxiao YANG, Chao YAN, Qi YUAN, Yangchun YU, Wenxing WANG

Journal Article

A Study of the Atmospheric Environmental Capacity of Jingjinji and of the Five Northwestern Provinces and Autonomous Regions in China

Hao Jiming,Xu Jiayu,Wu Jian and Ma Qiao

Journal Article

Temporal variation of PM-associated health effects in Shijiazhuang, Hebei

Journal Article

PM concentration declining saves health expenditure in China

Journal Article

Source apportionment of PM

Wei WEN,Shuiyuan CHENG,Lei LIU,Gang WANG,Xiaoqi WANG

Journal Article

Spatial and Temporal Variations in the Atmospheric Age Distribution of Primary and Secondary Inorganic Aerosols in China

Xiaodong Xie, Qi Ying, Hongliang Zhang, Jianlin Hu,

Journal Article

Diverse bacterial populations of PM in urban and suburb Shanghai, China

Journal Article

Local and regional contributions to PM in the Beijing 2022 Winter Olympics infrastructure areas during haze episodes

Journal Article

Understand the local and regional contributions on air pollution from the view of human health impacts

Journal Article

Spatial and Temporal Distribution of PM

Xiao-hong Chen,Xiang-bo Tang

Journal Article

Chemical characteristics of fine particulate matter emitted from commercial cooking

Bing PEI,Hongyang CUI,Huan LIU,Naiqiang YAN

Journal Article