Aerosol and Air Quality Research最新文献_第8页

A Synoptic- and Remote Sensing-based Analysis of a Severe Dust Storm Event over Central Asia 中亚一次严重沙尘暴天气和遥感分析

IF 4 4区环境科学与生态学

Aerosol and Air Quality Research Pub Date : 2023-01-01 DOI: 10.4209/aaqr.220309

P. Broomandi, K. Mohammadpour, D. Kaskaoutis, A. Fathian, S. Abdullaev, V. Maslov, Amirhossein Nikfal, A. Jahanbakhshi, B. Aubakirova, J. Kim, A. Satyanaga, A. Rashki, Nick Middleton

{"title":"A Synoptic- and Remote Sensing-based Analysis of a Severe Dust Storm Event over Central Asia","authors":"P. Broomandi, K. Mohammadpour, D. Kaskaoutis, A. Fathian, S. Abdullaev, V. Maslov, Amirhossein Nikfal, A. Jahanbakhshi, B. Aubakirova, J. Kim, A. Satyanaga, A. Rashki, Nick Middleton","doi":"10.4209/aaqr.220309","DOIUrl":"https://doi.org/10.4209/aaqr.220309","url":null,"abstract":"A severe dust storm blanketing Central Asia on 3–4 November 2021 was investigated employing satellite remote-sensing, synoptic meteorological observations, reanalysis and HYSPLIT back-trajectories. The prevailing meteorological conditions showed an intensification of air subsidence over eastern Kazakhstan, featured in a typical omega-blocking system over the region and two troughs to its west and east axis, one day before the dust storm. The prevailing high-pressure system and temperature gradients over Kazakhstan modulated the dominant anticyclonic wind pattern generated from the south Balkhash basin toward the Caspian Sea, causing a huge dust storm that covered the southern half of Kazakhstan and large parts of Uzbekistan, Tajikistan and Turkmenistan. The dust storm originated in the steppes of southern Kazakhstan by violent downdraft winds. Initially it swept over eastern parts and then the whole of Uzbekistan, reaching the Caspian Sea in the west. Meteorological measurements and HYSPLIT back-trajectories at selected sites in Central Asia (Turkmenabat, Khujand and Tashkent) showed a remarkable dust impact that reduced temperature (by 2–4 ° C) and visibility to below 1 km at different periods, as the thick dust plume expanded in various directions. The extremely high PM concentrations (PM 10 > 10,000 µ g m –3 in Tashkent) could endanger both human health and the environment, especially in a region suffering from high susceptibility to wind erosion and significant land","PeriodicalId":7402,"journal":{"name":"Aerosol and Air Quality Research","volume":"1 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70294342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Dynamic Characteristics of Aerosol Optical Properties over Dibrugarh City in the North-Eastern Indian Region during 2018–2021 2018-2021年印度东北部迪布鲁加尔市气溶胶光学特性的动态特征

IF 4 4区环境科学与生态学

Aerosol and Air Quality Research Pub Date : 2023-01-01 DOI: 10.4209/aaqr.220320

A. Chauhan, S. Acharjee, Ramesh P. Singh, B. Holben

{"title":"Dynamic Characteristics of Aerosol Optical Properties over Dibrugarh City in the North-Eastern Indian Region during 2018–2021","authors":"A. Chauhan, S. Acharjee, Ramesh P. Singh, B. Holben","doi":"10.4209/aaqr.220320","DOIUrl":"https://doi.org/10.4209/aaqr.220320","url":null,"abstract":"Aerosols play an important role in the earth's environment across the globe through their involvement in various earth system cycles. The change in the aerosol properties may cause short and long-term impacts, the knowledge of such changes is useful in the estimation of the pollution sources of any region. We have carried out the analysis of the aerosols' optical and radiative properties using AERONET station data from 2018 to 2021 in Dibrugarh City. The higher Aerosol Optical Depth (AOD) values during winter and pre-monsoon months indicate high anthropogenic activities, and biomass burning in Dibrugarh. The impact of various sources and daily meteorological parameters help in understanding the diurnal variations of the AOD, Ångström Exponent (AE), and column water (CW). Fine aerosol fractions dominate the aerosol volume, but sometimes the long-range transport of dust affects aerosol properties during pre-monsoon months (MAM). MODIS-derived AOD and AERONET AOD values show a good correlation, with R 2 = 0.68. The highest volume of the aerosols reaches up to 0.11 µ m 3 µ m –2 during pre-monsoon months, whereas it lies below 0.05 µ m 3 µ m –2 in other seasons. SSA values indicate the presence of scattering aerosols but in 2020, a sudden decline in the SSA values shows a strong rise in the absorbing aerosols. Throughout the study period (2018–2021), the positive radiative forcing indicates a rise in atmospheric heating.","PeriodicalId":7402,"journal":{"name":"Aerosol and Air Quality Research","volume":"1 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70294451","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Saliva Droplet Evaporation Experiment and Simple Correlation of Evaporation-falling Curve under Different Temperatures and RH 不同温度和相对湿度下唾液液滴蒸发实验及蒸发下降曲线的简单关联

IF 4 4区环境科学与生态学

Aerosol and Air Quality Research Pub Date : 2023-01-01 DOI: 10.4209/aaqr.220409

Dong-Bin Kwak, Hayden D. Fischer, D. Pui

引用次数: 1

Progress in Adsorptive Removal of Volatile Organic Compounds by Zeolites 沸石吸附去除挥发性有机物的研究进展

IF 4 4区环境科学与生态学

Aerosol and Air Quality Research Pub Date : 2023-01-01 DOI: 10.4209/aaqr.220442

Xiong Yang, Haotu Zhong, Ying-shu Liu, Ning Sun, Ruixing Kuang, Cong Wang, Antao Zhan, Junrong Zhang, Qiming Tang, Ziyi Li

{"title":"Progress in Adsorptive Removal of Volatile Organic Compounds by Zeolites","authors":"Xiong Yang, Haotu Zhong, Ying-shu Liu, Ning Sun, Ruixing Kuang, Cong Wang, Antao Zhan, Junrong Zhang, Qiming Tang, Ziyi Li","doi":"10.4209/aaqr.220442","DOIUrl":"https://doi.org/10.4209/aaqr.220442","url":null,"abstract":"Volatile Organic Compounds (VOCs) are a class of pollutants that have recently received much attention in atmospheric and indoor air pollution problems. They are precursors for PM 2.5 and ozone generation. The removal of VOCs emitted from exhaust gases is an urgent problem to solve air pollution. Adsorption is one of the most promising VOC abatement technologies, with the advantages of high purification efficiency, low cost, and simple equipment. The adsorbent plays a critical role in VOCs removal efficiency. Zeolite is a rapidly developing material due to its highly ordered and flexible microporous structure, good stability, and abundant surface modification. In this paper, the influence of zeolite properties, including framework structure, pore properties, and surface cations, on VOCs adsorption performance is analyzed. The VOCs adsorption performance on different zeolite adsorbents in the presence of water vapor is compared. The influential factors on the mass transfer kinetic properties of VOCs adsorption are summarized. Finally, an overview of zeolite honeycomb adsorbent applications for industrial use is presented, including multi-tower fixed bed adsorption and zeolite rotor adsorption.","PeriodicalId":7402,"journal":{"name":"Aerosol and Air Quality Research","volume":"1 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70295561","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

COPD with Eosinophilic Inflammation is Susceptible to Particulate Air Pollution Exposure 慢性阻塞性肺病伴嗜酸性粒细胞炎症易受空气微粒污染暴露

IF 4 4区环境科学与生态学

Aerosol and Air Quality Research Pub Date : 2023-01-01 DOI: 10.4209/aaqr.230035

Amja Manullang, C. Chung, Yueh-Lun Lee, T. Yuan, Huan M Tran, Firdian Makrufardi, K. Chung, Kang-Yun Lee, Jerjang Chang, H. Chuang

{"title":"COPD with Eosinophilic Inflammation is Susceptible to Particulate Air Pollution Exposure","authors":"Amja Manullang, C. Chung, Yueh-Lun Lee, T. Yuan, Huan M Tran, Firdian Makrufardi, K. Chung, Kang-Yun Lee, Jerjang Chang, H. Chuang","doi":"10.4209/aaqr.230035","DOIUrl":"https://doi.org/10.4209/aaqr.230035","url":null,"abstract":"Chronic obstructive pulmonary disease (COPD) has been linked to air pollution exposure. Air pollution has been associated with eosinophilic inflammation of respiratory disease. The objective of this study was to determine associations between air pollution and eosinophilic inflammation in COPD. A cross-sectional study was conducted on 291 COPD patients recruited from hospitals in Taipei between January 2014 and 2021, including 147 patients with eosinophil blood count ≥ 2% and 144 patients < 2%. Land use regression (LUR) model was used to estimate exposure levels to particulate matter with an aerodynamic diameter of < 10 µ m (PM 10 ), PM 2.5 ( < 10 µ m), nitrogen oxides (NO x ) and nitrogen dioxides (NO 2 ). We investigated associations of air pollution with COPD outcomes by performing a linear regression approach. A two-pollutant approach was applied to examine the associations of PM 10 or PM 2.5 with NO x or NO 2 in COPD with eosinophilic inflammation. An increase of 1 µ g m –3 in PM 10 was associated with a 0.62% (95% CI: –1.10%, –0.13%) decrease in the forced vital capacity (FVC) in COPD. An increase of 1 µ g m –3 in PM 2.5 was associated with a 0.38% (95% CI: –0.71%, –0.05%) decrease in the FVC. A 1 µ g","PeriodicalId":7402,"journal":{"name":"Aerosol and Air Quality Research","volume":"1 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70296863","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of an Aerosol Dryer on Ambient PM Measurements with SDS011 Low Cost Sensors during a Two-year Period in Duisburg, Germany 在德国杜伊斯堡两年期间，气溶胶干燥器对SDS011低成本传感器环境PM测量的影响

IF 4 4区环境科学与生态学

Aerosol and Air Quality Research Pub Date : 2023-01-01 DOI: 10.4209/aaqr.230080

Martin Nothhelfer, O. Sperber, A. Todea, Britta Schunke, Olga Romazanowa, Stefan Schumacher, D. Bathen, C. Asbach

{"title":"Effect of an Aerosol Dryer on Ambient PM Measurements with SDS011 Low Cost Sensors during a Two-year Period in Duisburg, Germany","authors":"Martin Nothhelfer, O. Sperber, A. Todea, Britta Schunke, Olga Romazanowa, Stefan Schumacher, D. Bathen, C. Asbach","doi":"10.4209/aaqr.230080","DOIUrl":"https://doi.org/10.4209/aaqr.230080","url":null,"abstract":"The performance of low-cost particulate matter (PM) sensors (NovaFitness SDS011) in connection with a self-developed aerosol dryer has been investigated in ambient air measurements over a two-year period by comparing the reported mass concentration of particulate matter (PM x ) with the results of a PM 10 reference filter sampler and two Tapered Element Oscillating Microbalances (TEOM), one for PM 10 and one for PM 2.5 . Special emphasis was put on the effect of relative air humidity on sensor readings. In total, four sensors were used per year in two pairs. For one pair, the aerosol was dried with a newly developed low-cost aerosol dryer, whereas the other pair measured the untreated aerosol. The results show that the 24 h average concentration reported by the sensor could be by a factor of up to 38 too high compared to the gravimetric measurement, if the aerosol was not dried, whereas the mismatch with a maximum factor of 5.4 was significantly lower when using the dryer. For the PM 10 concentration correction factors were determined from the ratios of the measured 24 h values of the sensors and the gravimetric reference. Corrected 24 h mean PM 10 concentrations with dryer agreed mostly within a factor of 2 with the gravimetric reference data from the filter sampler, whereas results from measurements without dryer agreed only within a factor of 5. The results further show that the sensors underestimate the mass concentrations in case of low relative humidity ( < 45%). Similar results are seen for the PM 2.5 data as well. Therefore, the use of a constant correction factor was checked. It is shown that an average correction factor of around 2.5 for the PM 10 and around 2.6 for the PM 2.5 readings could be a reasonable approach for all SDS011 sensors equipped with the newly developed aerosol dryer.","PeriodicalId":7402,"journal":{"name":"Aerosol and Air Quality Research","volume":"1 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70297174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “Implications of Implementing Promulgated and Prospective Emission Regulations on Air Quality and Health in India during 2030” [Aerosol Air Qual. Res. 22, 220112] “2030年印度实施已颁布和预期排放法规对空气质量和健康的影响”的更正[气溶胶空气质量，Res. 22, 220112]

IF 4 4区环境科学与生态学

Aerosol and Air Quality Research Pub Date : 2023-01-01 DOI: 10.4209/aaqr.231001

Sreyashi Debnath, R. Karumuri, Gaurav Govardhan, R. Jat, Himadri Saini, Akash Vispute, S. Kulkarni, C. Jena, Rajesh Kumar, D. Chate, S. Ghude

引用次数: 0

Synergistic Effect of Multi-field Force on Condensable Particulate Matter Properties and Behavior in Flue Gas: A Case Study in a Municipal Solid Waste Incineration Plan 多场力对烟气中可冷凝颗粒物特性和行为的协同效应——以某城市生活垃圾焚烧计划为例

IF 4 4区环境科学与生态学

Aerosol and Air Quality Research Pub Date : 2023-01-01 DOI: 10.4209/aaqr.220217

Wenting Liu, Bowen Zhao, Qian Feng, Zhiyong Zhou, Jia Lu

{"title":"Synergistic Effect of Multi-field Force on Condensable Particulate Matter Properties and Behavior in Flue Gas: A Case Study in a Municipal Solid Waste Incineration Plan","authors":"Wenting Liu, Bowen Zhao, Qian Feng, Zhiyong Zhou, Jia Lu","doi":"10.4209/aaqr.220217","DOIUrl":"https://doi.org/10.4209/aaqr.220217","url":null,"abstract":"At present, filterable particulate matter (FPM) emissions from stable source flue gases are well controlled, and the more difficult to remove condensable particulate matter (CPM) has received much attention due to its environmental hazards. In this study, we built a cold electrode electrostatic precipitator (CE-ESP) and systematically investigated the removal efficiency of CPM from municipal solid waste incineration plant flue gas by CE-ESP under three different operating modes. The results showed that hydrocarbons, esters and aromatic compounds were the main organic substances in CPM. The CE-ESP had a significant contribution to the removal of SO 42– , F – , Al, Ni, Cr, and Pb from CPM. In contrast, it had a less effective removal of NO 3– and Ca in CPM. The CE-ESP was effective for removing esters in CPM. The removal efficiency of CE-ESP for CPM could reach 76%, and the removal efficiency of organic substance was higher than that of inorganic substance. It is demonstrated that the combination of thermophoretic force and electric field in CE-ESP intensifies the turbulent agglomeration process, and the diffusion force generated by the concentration field synergistically enhances the interparticle coagulation and agglomeration. This promotes the homogeneous condensation process of CPM and the heterogeneous condensation of CPM and FPM, which is conducive to the reduction of condensable particulate matter in flue gas and can provide a theoretical basis for practical application in engineering","PeriodicalId":7402,"journal":{"name":"Aerosol and Air Quality Research","volume":"1 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70293582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Hygroscopic Growth Factors of Sub-micrometer Atmospheric Aerosols at Four Selected Sites in Thailand 泰国四个选定地点亚微米大气气溶胶吸湿性生长因子

IF 4 4区环境科学与生态学

Aerosol and Air Quality Research Pub Date : 2023-01-01 DOI: 10.4209/aaqr.220374

J. Pariyothon, S. Bualert, Parkpoom Choomanee, T. Rungratanaubon, T. Thongyen, Narita Fakkaew, Chayaporn Phuetfoo, Jitlada Phupijit, W. Szymanski

{"title":"Hygroscopic Growth Factors of Sub-micrometer Atmospheric Aerosols at Four Selected Sites in Thailand","authors":"J. Pariyothon, S. Bualert, Parkpoom Choomanee, T. Rungratanaubon, T. Thongyen, Narita Fakkaew, Chayaporn Phuetfoo, Jitlada Phupijit, W. Szymanski","doi":"10.4209/aaqr.220374","DOIUrl":"https://doi.org/10.4209/aaqr.220374","url":null,"abstract":"Hygroscopic growth factor (Gf) of aerosols is related to water loading on particles in sub-saturated conditions. It is an essential parameter for assessing the role of atmospheric particles in the radiative transfer and cloud formation process. Therefore, the temporal variation in Gf of size-selected atmospheric particles from the Aitken mode (D p ≤ 100 nm) and accumulation mode (D p > 100 nm) was measured using a humidified tandem differential mobility analyser (H-TDMA) and the relationship between particle size and Gf for various locations and meteorological conditions was determined. The origin of ambient particles primarily defines their properties and governs their participation in atmospheric processes. Thus, the measurements were performed in locations with different land-use types: urban, rural, coastal-industrial, and landlocked industrial areas. The data showed site-dependent patterns of temporal and spatial changes in Gf. The results indicated that the number-weighted Gf averaged over the investigated particle size range (30–250 nm) was highest in rural areas (Gf = 1.27), followed by coastal-industrial (Gf = 1.19), urban (Gf = 1.11), and landlocked industrial areas (Gf = 1.06). Particles in the urban and landlocked industrial areas had relatively low Gf values, suggesting that they originated mainly from fossil fuel combustion, in contrast to particles at other sites which can be attributed to coastal proximity","PeriodicalId":7402,"journal":{"name":"Aerosol and Air Quality Research","volume":"1 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70295316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Local versus Regional Contributions to PM10 Levels in the Western Mediterranean 西地中海地区对PM10水平的地方与区域贡献

4区环境科学与生态学

Aerosol and Air Quality Research Pub Date : 2023-01-01 DOI: 10.4209/aaqr.230218

Álvaro Clemente, Nuria Galindo, Jose F. Nicolás, Javier Crespo, Carlos Pastor, Eduardo Yubero

引用次数: 0