Journal of environmental sciences最新文献

{"title":"Core-shell design of UiO66-Fe3O4 configured with EDTA-assisted washing for rapid adsorption and simple recovery of heavy metal pollutants from soil","authors":"Xi Wang ,&nbsp;Asif Hussain ,&nbsp;Qingqing Li ,&nbsp;Mingyu Ma ,&nbsp;Juan Wu ,&nbsp;Mingqiang Deng ,&nbsp;Jie Yang ,&nbsp;Dengxin Li","doi":"10.1016/j.jes.2023.09.034","DOIUrl":"https://doi.org/10.1016/j.jes.2023.09.034","url":null,"abstract":"<div><p>The coupling of washing with adsorption process can be adopted for the treatment of soils contaminated with heavy metals pollution. However, the complex environment of soil and the competitive behavior of leaching chemicals considerably restrain adsorption capacity of adsorbent material during washing process, which demands a higher resistance of the adsorbents to interference. In this study, we synthesized strongly magnetic, high specific surface area (573.49 m²/g) UiO66 composites (i.e., UiO66-Fe₃O₄) using hydrothermal process. The UiO66-Fe₃O₄ was applied as an adsorbent during the ethylene diamine tetraacetic acid (EDTA)-assisted washing process of contaminated soil. The incorporation of UiO66-Fe₃O₄ results in rapid heavy metal removal and recovery from the soil under low concentrations of washing agent (0.001 mol/L) with reduced residual heavy metal mobility of soil after remediation. Furthermore, UiO66-Fe₃O₄ can quickly recollect by an external magnet, which offers a simple and inexpensive recovery method for heavy metals from contaminated soil. Overall, UiO66-Fe₃O₄ configuration with EDTA-assisted washing process showed opportunities for heavy metals contaminated sites.</p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"139 ","pages":"Pages 556-568"},"PeriodicalIF":6.9,"publicationDate":"2023-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49764534","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diamine-modified porous indium frameworks with crystalline porous materials (CPM)-5 structure for carbon dioxide fixation under co-catalyst and solvent free conditions","authors":"Naghmeh Bayati,&nbsp;Saeed Dehghanpour","doi":"10.1016/j.jes.2022.08.029","DOIUrl":"10.1016/j.jes.2022.08.029","url":null,"abstract":"<div><p>In the present work, functional diamine groups into indium frameworks to synthesize cyclic carbonates from CO₂ and epoxides with efficient catalytic activity in the absence of co-catalyst and solvent are reported for the first time. Crystalline porous materials (CPM)-5 modified with 1,2-phenylene diamine and ethylene diamine (CPM-5-PhDA and CPM-5-EDA), were prepared using a post-synthetic modification (PSM) method. The properties of the modified CPM-5 were characterized by powder X-ray diffraction (PXRD), Fourier transform infrared spectroscopy (FT-IR), X-ray photoelectron spectroscopy (XPS), N₂-adsorption, scanning electron microscopy (SEM), CO₂ adsorption, and temperature programmed desorption TPD methods. The presence of diamine groups as basic sites and indium Lewis acid sites in the framework structure were desirable for high catalytic activity. For a given catalyst weight, CPM-5-PhDA was the best candidate to appear with great catalytic activity and selectivity for the cycloaddition reaction at 100°C and 1 MPa CO₂ under co-catalyst and solvent free conditions. CPM-5-PhDA also was found to afford large and bulky epoxides. The catalyst can be easily separated and reused five times without any decline in activity.</p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"132 ","pages":"Pages 12-21"},"PeriodicalIF":6.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9660414","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Estimation of surface ozone concentration over Jiangsu province using a high-performance deep learning model","authors":"Xi Mu ,&nbsp;Sichen Wang ,&nbsp;Peng Jiang ,&nbsp;Yanlan Wu","doi":"10.1016/j.jes.2022.09.032","DOIUrl":"10.1016/j.jes.2022.09.032","url":null,"abstract":"<div><p>Recently, the global background concentration of ozone (O₃) has demonstrated a rising trend. Among various methods, groun-based monitoring of O₃ concentrations is highly reliable for research analysis. To obtain information on the spatial characteristics of O₃ concentrations, it is necessary that the ground monitoring sites be constructed in sufficient density. In recent years, many researchers have used machine learning models to estimate surface O₃ concentrations, which cannot fully provide the spatial and temporal information contained in a sample dataset. To solve this problem, the current study utilized a deep learning model called the Residual connection Convolutional Long Short-Term Memory network (R-ConvLSTM) to estimate daily maximum 8-hr average (MDA8) O₃ over Jiangsu province, China during 2020. In this research, the R-ConvLSTM model not only provides the spatiotemporal information of MDA8 O₃, but also involves residual connection to avoid the problem of gradient explosion and gradient disappearance with the deepening of network layers. We utilized the TROPOMI total O₃ column retrieved from Sentinel-5 Precursor, ERA5 reanalysis meteorological data, and other supplementary data to build a pre-trained dataset. The R-ConvLSTM model achieved an overall sample-base cross-validation (CV) <em>R</em>²<span> of 0.955 with root mean square error (RMSE) of 9.372 µg/m</span>³. Model estimation also showed a city-based CV <em>R</em>² of 0.896 with RMSE of 14.029 µg/m³, the highest MDA8 O₃ in spring being 122.60 ± 31.60 µg/m³ and the lowest in winter being 69.93 ± 18.48 µg/m³.</p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"132 ","pages":"Pages 122-133"},"PeriodicalIF":6.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9660415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Refractory black carbon aerosols in rainwater in the summer of 2019 in Beijing: Mass concentration, size distribution and wet scavenging ratio","authors":"Shandong Lei ,&nbsp;Baozhu Ge ,&nbsp;Hang Liu ,&nbsp;Jiannong Quan ,&nbsp;Danhui Xu ,&nbsp;Yuting Zhang ,&nbsp;Weijie Yao ,&nbsp;Lu Lei ,&nbsp;Yu Tian ,&nbsp;Qi Liao ,&nbsp;Xiaoyong Liu ,&nbsp;Jie Li ,&nbsp;Jinyuan Xin ,&nbsp;Yele Sun ,&nbsp;Pingqing Fu ,&nbsp;Junji Cao ,&nbsp;Zifa Wang ,&nbsp;Xiaole Pan","doi":"10.1016/j.jes.2022.07.039","DOIUrl":"10.1016/j.jes.2022.07.039","url":null,"abstract":"<div><p><span>Black carbon (BC) aerosols in the atmosphere play a significant role in climate systems due to their strong ability to absorb solar radiation. The lifetime of BC depends on atmospheric transport, aging and consequently on wet scavenging processes (in-cloud and below-cloud scavenging). In this study, sequential rainwater samples in eight rainfall events collected in 2 mm interval were measured by a tandem system including a single particle soot photometer (SP2) and a nebulizer. The results showed that the volume-weighted average (VWA) mass concentrations of refractory black carbon (rBC) in each rainfall event varied, ranging from 10.8 to 78.9 µg/L. The highest rBC concentrations in the rainwater samples typically occurred in the first fraction from individual rainfall events. The geometric mean median mass-equivalent diameter (MMD) decreased under precipitation, indicating that </span><em>r</em>BC with larger sizes was relatively aged and preferentially removed by wet scavenging. A positive correlation (<em>R</em>² = 0.73) between the VWA mass concentrations of <em>r</em>BC in rainwater and that in ambient air suggested the important contribution of scavenging process. Additionally, the contributions of in-cloud and below-cloud scavenging were distinguished and accounted for 74% and 26% to wet scavenging, respectively. The scavenging ratio of rBC particles was estimated to be 0.06 on average. This study provides helpful information for better understanding the mechanism of rBC wet scavenging and reducing the uncertainty of numerical simulations of the climate effects of rBC.</p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"132 ","pages":"Pages 31-42"},"PeriodicalIF":6.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9668674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring HONO formation and its role in driving secondary pollutants formation during winter in the North China Plain","authors":"Shaobin Zhang ,&nbsp;Guo Li ,&nbsp;Nan Ma ,&nbsp;Yao He ,&nbsp;Shaowen Zhu ,&nbsp;Xihao Pan ,&nbsp;Wenlin Dong ,&nbsp;Yanyan Zhang ,&nbsp;Qingwei Luo ,&nbsp;Jeannine Ditas ,&nbsp;Uwe Kuhn ,&nbsp;Yuxuan Zhang ,&nbsp;Bin Yuan ,&nbsp;Zelong Wang ,&nbsp;Peng Cheng ,&nbsp;Juan Hong ,&nbsp;Jiangchuan Tao ,&nbsp;Wanyun Xu ,&nbsp;Ye Kuang ,&nbsp;Qiaoqiao Wang ,&nbsp;Hang Su","doi":"10.1016/j.jes.2022.09.034","DOIUrl":"10.1016/j.jes.2022.09.034","url":null,"abstract":"<div><p><span>Daytime HONO photolysis is an important source of atmospheric hydroxyl radicals (OH). Knowledge of HONO formation chemistry under typical haze conditions, however, is still limited. In the Multiphase chemistry experiment in Fogs and Aerosols in the North China Plain in 2018, we investigated the wintertime HONO formation and its atmospheric implications at a rural site Gucheng. Three different episodes based on atmospheric aerosol loading levels were classified: clean periods (CPs), moderately polluted periods (MPPs) and severely polluted periods (SPPs). Correlation analysis revealed that HONO formation via heterogeneous conversion of </span><span><math><mrow><mi>N</mi><msub><mi>O</mi><mn>2</mn></msub></mrow></math></span> was more efficient on aerosol surfaces than on ground, highlighting the important role of aerosols in promoting HONO formation. Daytime HONO budget analysis indicated a large missing source (with an average production rate of 0.66 ± 0.26, 0.97 ± 0.47 and 1.45 ± 0.55 ppbV/hr for CPs, MPPs and SPPs, respectively), which strongly correlated with photo-enhanced reactions (<span><math><mrow><mi>N</mi><msub><mi>O</mi><mn>2</mn></msub></mrow></math></span> heterogeneous reaction and particulate nitrate photolysis). Average OH formation derived from HONO photolysis reached up to (0.92 ± 0.71), (1.75 ± 1.26) and (1.82 ± 1.47) ppbV/hr in CPs, MPPs and SPPs respectively, much higher than that from <span><math><msub><mi>O</mi><mn>3</mn></msub></math></span> photolysis (i.e., (0.004 ± 0.004), (0.006 ± 0.007) and (0.0035 ± 0.0034) ppbV/hr). Such high OH production rates could markedly regulate the atmospheric oxidation capacity and hence promote the formation of secondary aerosols and pollutants.</p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"132 ","pages":"Pages 83-97"},"PeriodicalIF":6.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9668669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Observation on the aerosol and ozone precursors in suburban areas of Shenzhen and analysis of potential source based on MAX-DOAS","authors":"Hairong Zhang ,&nbsp;Ang Li ,&nbsp;Zhaokun Hu ,&nbsp;Hongmei Ren ,&nbsp;Hongyan Zhong ,&nbsp;Jianfeng Guo ,&nbsp;Long Yun ,&nbsp;Mingdi Zhang","doi":"10.1016/j.jes.2022.08.030","DOIUrl":"10.1016/j.jes.2022.08.030","url":null,"abstract":"<div><p>Long-term stereoscopic observations of aerosol, NO₂, and HCHO were carried out at the Yangmeikeng (YMK) site in Shenzhen. Aerosol optical depths and NO₂ vertical column concentration (NO₂ VCD) derived from MAX-DOAS were found to be consistent with other datasets. The total NO₂ VCD values of the site remained low, varying from 2 × 10¹⁵ to 8 × 10¹⁵ mol/cm², while the HCHO VCD was higher than NO₂ VCD, varying from 7 × 10¹⁵ to 11 × 10¹⁵ mol/cm². HCHO VCD was higher from September to early November than that was from mid-late November to December and during February 2021, in contrast, NO₂ VCD did not change much during the same period. In January, NO₂ VCD and HCHO VCD were both fluctuating drastically. High temperature and HCHO level in the YMK site is not only driving the ozone production up but also may be driving up the ozone concentration as well, and the O₃ production regime in the YMK site tends to be NO_x-limited. At various altitudes, backward trajectory clustering analysis and Potential Source Contribution Function (PSCF) were utilized to identify possible NO₂ and HCHO source locations. The results suggested that the Huizhou-Shanwei border and the Daya Bay Sea area were the key potential source locations in the lower (200 m) and middle (500 m) atmosphere (WPSCF &gt; 0.6). The WPSCF value was high at the 1000 m altitude which was closer to the YMK site than the near ground, indicating that the pollution transport capability in the upper atmosphere was limited.</p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"132 ","pages":"Pages 109-121"},"PeriodicalIF":6.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9668671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Visible-light-induced photocatalytic CO2 reduction over zirconium metal organic frameworks modified with different functional groups","authors":"Yuexian Du ,&nbsp;Guang'an Jie ,&nbsp;Huilin Jia ,&nbsp;Jiahui Liu ,&nbsp;Jieyu Wu ,&nbsp;Yanghe Fu ,&nbsp;Fumin Zhang ,&nbsp;Weidong Zhu ,&nbsp;Maohong Fan","doi":"10.1016/j.jes.2022.10.037","DOIUrl":"https://doi.org/10.1016/j.jes.2022.10.037","url":null,"abstract":"<div><p>The reduction of CO₂ into high value-added chemicals and fuels by a photocatalytic technology can relieve energy shortages and the environmental problems caused by greenhouse effects. In the current work, an amino-functionalized zirconium metal organic framework (Zr-MOF) was covalently modified with different functional groups via the condensation of Zr-MOF with 2-pyridinecarboxaldehyde (PA), salicylaldehyde (SA), benzaldehyde (BA), and trifluoroacetic acid (TA), named Zr-MOF-X (X = PA, SA, BA, and TA), respectively, through the post-synthesis modification. Compared with Zr-MOF and Zr-MOF-TA, the introduction of PA, SA, or BA into the framework of Zr-MOF can not only enhance the visible-light harvesting and CO₂ capture, but also accelerate the photogenerated charge separation and transfer, thereby improving the photocatalytic ability of Zr-MOF for CO₂ reduction. These results indicate that the modification of Zr-MOF with electron-donating groups can promote the photocatalytic CO₂ reduction. Therefore, the current work provides an instructive approach to improve the photocatalytic efficiency of CO₂ reduction through the covalent modification of MOFs.</p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"132 ","pages":"Pages 22-30"},"PeriodicalIF":6.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49745106","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalytic degradation of benzene over non-thermal plasma coupled Co-Ni binary metal oxide nanosheet catalysts","authors":"Zhi Jiang ,&nbsp;Dongxu Fang ,&nbsp;Yuting Liang ,&nbsp;Yaoyu He ,&nbsp;Hisahiro Einaga ,&nbsp;Wenfeng Shangguan","doi":"10.1016/j.jes.2022.09.030","DOIUrl":"10.1016/j.jes.2022.09.030","url":null,"abstract":"<div><p><span><span>Non-thermal plasma (NTP) has been demonstrated as one of the promising technologies that can degrade volatile organic compounds (VOCs) under ambient condition. However, one of the key challenges of VOCs degradation in NTP is its relatively low mineralization rate, which needs to be addressed by introducing catalysts. Therefore, the design and optimization of catalysts have become the focus of NTP coupling catalysis research. In this work, a series of two-dimensional nanosheet Co-Ni </span>metal oxides were synthesized by microwave method and investigated for the catalytic oxidation of benzene in an NTP-catalysis coupling system. Among them, Co</span>₂Ni₁O<em>_x</em> achieves 60% carbon dioxide (CO₂<span>) selectivity (</span><em>S</em>_CO2) when the benzene removal efficiency (RE_benzene) reaches more than 99%, which is a significant enhancement compared with the CO₂ selectivity obtained without any catalysts (38%) under the same input power. More intriguingly, this <em>S</em>_CO2 is also significantly higher than that of single metal oxides, NiO or Co₃O₄, which is only around 40%. Such improved performance of this binary metal oxide catalyst is uniquely attributed to the synergistic effects of Co and Ni in Co₂Ni₁O_x catalyst. The introduction of Co₂Ni₁O<em>_x</em><span> was found to promote the generation of acrolein significantly, one of the key intermediates found in NTP alone system reported previously, suggest the benzene ring open reaction is promoted. Compared with monometallic oxides NiO and Co</span>₃O₄, Co₂Ni₁O<em>_x</em> also shows higher active oxygen proportion, better oxygen mobility, and stronger low-temperature redox capability. The above factors result in the improved catalytic performance of Co₂Ni₁O<em>_x</em> in the NTP coupling removal of benzene.</p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"132 ","pages":"Pages 1-11"},"PeriodicalIF":6.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9668667","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Parameterization of below-cloud scavenging for polydisperse fine mode aerosols as a function of rain intensity","authors":"Chang Hoon Jung ,&nbsp;Hyung-Min Lee ,&nbsp;Dasom Park ,&nbsp;Young Jun Yoon ,&nbsp;Yongjoo Choi ,&nbsp;Junshik Um ,&nbsp;Seoung Soo Lee ,&nbsp;Ji Yi Lee ,&nbsp;Yong Pyo Kim","doi":"10.1016/j.jes.2022.07.031","DOIUrl":"10.1016/j.jes.2022.07.031","url":null,"abstract":"<div><p>The below-cloud aerosol scavenging process by precipitation is one of the most important mechanisms to remove aerosols from the atmosphere. Due to its complexity and dependence on both aerosol and raindrop sizes, wet scavenging process has been poorly treated, especially during the removal of fine particles. This makes the numerical simulation of below-cloud scavenging in large-scale aerosol models unrealistic. To consider the slip effects of submicron particles, a simplified expression for the diffusion scavenging was developed by approximating the Cunningham slip correction factor. The derived analytic solution was parameterized as a simple power function of rain intensity under the assumption of the lognormal size distribution of particles. The resultant approximated expression was compared to the observed data and the results of previous studies including a 3D atmospheric chemical transport model simulation. Compared with the default GEOS-Chem coefficient of 0.00106<em>R</em>^0.61 and the observation-based coefficient of 0.0144<em>R</em>^0.9268, the coefficient of <em>a</em> and <em>b</em> in <em>Λ_m = aR^b</em> spread in the range of 0.0002- 0.1959 for a and 0.3261- 0.525 for <em>b</em> over a size distribution of GSD of 1.3–2.5 and a geometric mean diameter of 0.01- 2.5 µm. Overall, this study showed that the scavenging coefficient varies widely by orders of magnitude according to the size distribution of particles and rain intensity. This study also demonstrated that the obtained simplified expression could consider the theoretical approach of aerosol polydispersity. Our proposed analytic approach showed that results can be effectively applied for reduced computational burden in atmospheric modeling.</p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"132 ","pages":"Pages 43-55"},"PeriodicalIF":6.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9668673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A vehicle-mounted dual-smog chamber: Characterization and its preliminary application to evolutionary simulation of photochemical processes in a quasi-realistic atmosphere","authors":"Wenlu Wang ,&nbsp;Yang Xiao ,&nbsp;Shijie Han ,&nbsp;Yang Zhang ,&nbsp;Daocheng Gong ,&nbsp;Hao Wang ,&nbsp;Boguang Wang","doi":"10.1016/j.jes.2022.07.034","DOIUrl":"10.1016/j.jes.2022.07.034","url":null,"abstract":"<div><p>Smog chambers are the effective tools for studying formation mechanisms of air pollution. Simulations by traditional smog chambers differ to a large extent from real atmospheric conditions, including light, temperature and atmospheric composition<span>. However, the existing parameters for mechanism interpretation are derived from the traditional smog chambers. To address the gap between the traditional laboratory simulations and the photochemistry<span> in the real atmosphere, a vehicle-mounted indoor-outdoor dual-smog chamber (JNU-VMDSC) was developed, which can be quickly transferred to the desired sites to simulate quasi-realistic atmosphere simultaneously in both chambers using “local air”. Multiple key parameters of the smog chamber were characterized in the study, demonstrating that JNU-VMDSC meets the requirements of general atmospheric chemistry simulation studies. Additionally, the preliminary results for the photochemical simulations of quasi-realistic atmospheres in Pearl River Delta region and Nanling Mountains are consistent with literature reports on the photochemistry in this region. JNU-VMDSC provides a convenient and reliable experimental device and means to study the mechanism of atmospheric photochemical reactions to obtain near-real results, and will make a great contribution to the control of composite air pollution.</span></span></p></div>","PeriodicalId":15774,"journal":{"name":"Journal of environmental sciences","volume":"132 ","pages":"Pages 98-108"},"PeriodicalIF":6.9,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10042860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}