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  1. Article ; Online: VOCs hyperspectral imaging: A new insight into evaluate emissions and the corresponding health risk from industries.

    Xing, Chengzhi / Liu, Cheng / Lin, Jinan / Tan, Wei / Liu, Ting

    Journal of hazardous materials

    2023  Volume 461, Page(s) 132573

    Abstract: The harm of VOCs emitted from industries to surrounding atmospheric environment and human health was well known and had received continuous attention. In order to improve the quality of urban atmospheric environment and the living environment of urban ... ...

    Abstract The harm of VOCs emitted from industries to surrounding atmospheric environment and human health was well known and had received continuous attention. In order to improve the quality of urban atmospheric environment and the living environment of urban residents, a large number of original urban industries had been relocated to economically underdeveloped suburbs, which has significantly deteriorated the atmospheric environment in these areas and brought potential health risks to local vulnerable residents, which is actually an unfair manifestation under the background of economic development and ecological civilization construction. There were many residents near industrial parks, but there was a significant lack of VOCs monitoring equipment and data. At present, the time resolution of the most commonly used in situ method was seriously insufficient, and it was unable to quantify the diffusion/transport process of VOCs. It was urgent to have effective detection methods for industrial VOCs plume concentration and diffusion/transport process. In this study, we proposed a hyperspectral imaging technology, which can realize long-term continuous imaging monitoring on plume concentrations of formaldehyde (HCHO), glyoxal (CHOCHO) and benzaldehyde (C
    Language English
    Publishing date 2023-09-17
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 1491302-1
    ISSN 1873-3336 ; 0304-3894
    ISSN (online) 1873-3336
    ISSN 0304-3894
    DOI 10.1016/j.jhazmat.2023.132573
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  2. Article: Variations of Urban NO2 Pollution during the COVID-19 Outbreak and Post-Epidemic Era in China: A Synthesis of Remote Sensing and In Situ Measurements

    Zhao, Chunhui / Zhang, Chengxin / Lin, Jinan / Wang, Shuntian / Liu, Hanyang / Wu, Hongyu / Liu, Cheng

    Remote Sensing. 2022 Jan. 17, v. 14, no. 2

    2022  

    Abstract: Since the COVID-19 outbreak in 2020, China’s air pollution has been significantly affected by control measures on industrial production and human activities. In this study, we analyzed the temporal variations of NO₂ concentrations during the COVID-19 ... ...

    Abstract Since the COVID-19 outbreak in 2020, China’s air pollution has been significantly affected by control measures on industrial production and human activities. In this study, we analyzed the temporal variations of NO₂ concentrations during the COVID-19 lockdown and post-epidemic era in 11 Chinese megacities by using satellite and ground-based remote sensing as well as in situ measurements. The average satellite tropospheric vertical column density (TVCD) of NO₂ by TROPOMI decreased by 39.2–71.93% during the 15 days after Chinese New Year when the lockdown was at its most rigorous compared to that of 2019, while the in situ NO₂ concentration measured by China National Environmental Monitoring Centre (CNEMC) decreased by 42.53–69.81% for these cities. Such differences between both measurements were further investigated by using ground-based multi-axis differential optical absorption spectroscopy (MAX-DOAS) remote sensing of NO₂ vertical profiles. For instance, in Beijing, MAX-DOAS NO₂ showed a decrease of 14.19% (versus 18.63% by in situ) at the ground surface, and 36.24% (versus 36.25% by satellite) for the total tropospheric column. Thus, vertical discrepancies of atmospheric NO₂ can largely explain the differences between satellite and in situ NO₂ variations. In the post-epidemic era of 2021, satellite NO₂ TVCD and in situ NO₂ concentrations decreased by 10.42–64.96% and 1.05–34.99% compared to 2019, respectively, possibly related to the reduction of the transportation industry. This study reveals the changes of China’s urban NO₂ pollution in the post-epidemic era and indicates that COVID-19 had a profound impact on human social activities and industrial production.
    Keywords COVID-19 infection ; air pollution ; humans ; satellites ; spectroscopy ; transportation industry ; troposphere ; China
    Language English
    Dates of publication 2022-0117
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2513863-7
    ISSN 2072-4292
    ISSN 2072-4292
    DOI 10.3390/rs14020419
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  3. Article ; Online: Inferring global surface HCHO concentrations from multisource hyperspectral satellites and their application to HCHO-related global cancer burden estimation.

    Su, Wenjing / Hu, Qihou / Chen, Yujia / Lin, Jinan / Zhang, Chengxin / Liu, Cheng

    Environment international

    2022  Volume 170, Page(s) 107600

    Abstract: Formaldehyde (HCHO) is a toxic and hazardous air pollutant that widely exists in atmosphere. Insufficient spatial and temporal coverage of surface HCHO measurements is limiting studies on surface HCHO-related air quality management and health risk ... ...

    Abstract Formaldehyde (HCHO) is a toxic and hazardous air pollutant that widely exists in atmosphere. Insufficient spatial and temporal coverage of surface HCHO measurements is limiting studies on surface HCHO-related air quality management and health risk assessment. This study develops a method to derive global ground-level HCHO concentrations from satellite-based tropospheric HCHO columns using TM5-simulated surface-to-column conversion factor with coarse spatial resolution. The method improves the factor more representative in finer grids by constraining TM5-simulated vertical profile shapes with satellite HCHO columns. The surface HCHO concentrations derived by the Ozone Mapping and Profiler Suite (OMPS) show good correlation with in situ HCHO measurements (R = 0.59) from the U.S. Environmental Protection Agency surface network. We investigated how surface HCHO relates to urbanization and population aggregation over seven regions with high HCHO pollution. The results show urban HCHO increases as a power function with population size in China, India, and West Asia. HCHO concentrations in rural aeras also present strong log-log relationship with population aggregation in China, India, the United States, and Europe. Moreover, OMPS-derived ground-level HCHO concentrations were used to estimate global cancer burden caused by long-term outdoor HCHO exposure. The results show that up to 418188 more people worldwide will develop this cancer during the human life cycle. The global cancer burden is mainly from the South-East Asia region (33.11 %) and the Western Pacific region (22.95 %). This cancer occurrence in India and China is ranked 1st and 2nd in the world due to the large population size and serious HCHO pollution. Besides, global surface HCHO concentrations and cancer burden derived from the Environmental Trace Gases Monitoring Instrument which is China's first hyperspectral space-based spectrometer are found similar patterns with that from OMPS. Our results provide new insight into the impact of population urbanization on HCHO pollution and global outdoor HCHO-caused health risks.
    MeSH term(s) United States ; Humans ; India ; United States Environmental Protection Agency ; Urbanization ; China ; Neoplasms
    Language English
    Publishing date 2022-10-25
    Publishing country Netherlands
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 554791-x
    ISSN 1873-6750 ; 0160-4120
    ISSN (online) 1873-6750
    ISSN 0160-4120
    DOI 10.1016/j.envint.2022.107600
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 3131: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  4. Article ; Online: Hyperspectral imaging technique supports dynamic emission inventory of coal-fired power plants in China.

    Lin, Jinan / Xing, Chengzhi / Liu, Cheng / Tan, Wei / Wang, Wei / Wu, Peng / Lu, Chuan / Li, Qihua / Liu, Ting

    Science bulletin

    2023  Volume 68, Issue 12, Page(s) 1248–1251

    Language English
    Publishing date 2023-05-22
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 2816140-3
    ISSN 2095-9281 ; 2095-9273
    ISSN (online) 2095-9281
    ISSN 2095-9273
    DOI 10.1016/j.scib.2023.05.020
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  5. Article: Vertical Structure of Air Pollutant Transport Flux as Determined by Ground-Based Remote Sensing Observations in Fen-Wei Plain, China

    Ji, Xiangguang / Hu, Qihou / Hu, Bo / Wang, Shuntian / Liu, Hanyang / Xing, Chengzhi / Lin, Hua / Lin, Jinan

    Remote Sensing. 2021 Sept. 14, v. 13, no. 18

    2021  

    Abstract: Air pollutant transport plays an important role in local air quality, but field observations of transport fluxes, especially their vertical distributions, are very limited. We characterized the vertical structures of transport fluxes in central Luoyang, ... ...

    Abstract Air pollutant transport plays an important role in local air quality, but field observations of transport fluxes, especially their vertical distributions, are very limited. We characterized the vertical structures of transport fluxes in central Luoyang, Fen-Wei Plain, China, in winter based on observations of vertical air pollutant and wind profiles using multi-axis differential optical absorption spectroscopy (MAX-DOAS) and Doppler wind lidar, respectively. The northwest and the northeast are the two privileged wind directions. The wind direction and total transport scenarios were dominantly the northwest during clear days, turning to the northeast during the polluted days. Increased transport flux intensities of aerosol were found at altitudes below 400 m on heavily polluted days from the northeast to the southwest over the city. Considering pollution dependence on wind directions and speeds, surface-dominated northeast transport may contribute to local haze events. Northwest winds transporting clean air masses were dominant during clean periods and flux profiles characterized by high altitudes between 200 and 600 m in Luoyang. During the COVID-19 lockdown period in late January and February, clear reductions in transport flux were found for NO₂ from the northeast and for HCHO from the northwest, while the corresponding main transport altitude remained unchanged. Our findings provide better understandings of regional transport characteristics, especially at different altitudes.
    Keywords aerosols ; air ; air pollutants ; air quality ; altitude ; lidar ; spectroscopy ; wind direction ; winter ; China
    Language English
    Dates of publication 2021-0914
    Publishing place Multidisciplinary Digital Publishing Institute
    Document type Article
    ZDB-ID 2513863-7
    ISSN 2072-4292
    ISSN 2072-4292
    DOI 10.3390/rs13183664
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  6. Article: Vertical distributions and potential sources of wintertime atmospheric pollutants and the corresponding ozone production on the coast of Bohai Sea

    Xing, Chengzhi / Liu, Cheng / Hong, Qianqian / Liu, Hanyang / Wu, Hongyu / Lin, Jinan / Song, Yuhang / Chen, Yujia / Liu, Ting / Hu, Qihou / Tan, Wei / Lin, Hua

    Journal of environmental management. 2022 Oct. 01, v. 319

    2022  

    Abstract: This study investigated the wintertime vertical distributions and source areas of aerosols, NO₂, and HCHO in a coastal city of Dongying from December 2020 to March 2021, using ground-based multi-axis differential optical absorption spectroscopy (MAX-DOAS) ...

    Abstract This study investigated the wintertime vertical distributions and source areas of aerosols, NO₂, and HCHO in a coastal city of Dongying from December 2020 to March 2021, using ground-based multi-axis differential optical absorption spectroscopy (MAX-DOAS) and a potential source contribution function (PSCF) model, respectively. Moreover, the chemical production sensitivity of O₃ at different height layers was analyzed using HCHO/NO₂ ratios. The results revealed that the wintertime averaged highest concentrations of aerosol (1.25 km⁻¹), NO₂ (14.81 ppb), and HCHO (2.32 ppb) were mainly distributed at the surface layer, 100–200 m layer, and 200–300 m layer, respectively. Regarding the diurnal cycles, high concentrations of aerosol (>1.4 km⁻¹) and NO₂ (>16.0 ppb) usually appeared in the early morning and late afternoon, while high concentrations of HCHO (>2.5 ppb) usually occurred during 12:00–15:00. The PSCF model revealed that the wintertime aerosol mainly originated from Shandong, northern Jiangsu, Korea, and the northwestern Mongolian Plateau. Below 200 m, NO₂ was mainly from western Shandong, whereas above 600 m, it was mainly from northern Shandong and the Beijing-Tianjin-Hebei (BTH) region. The corresponding sources for HCHO were central and southern Shandong (below 200 m) and northern Shandong, northern Jiangsu, and southeastern BTH (above 600 m). In addition, the chemical production sensitivity of O₃ below 100 m was observed only in the VOC-limited regime. The percentages of O₃ production under the NOₓ-limited, NOₓ-VOC-limited, and VOC-limited regimes were 10.75% (31.18%), 4.30% (19.35%), and 84.95% (49.47%) at the 500–600 m (900–1000 m) layer. This study has guiding significance for the coordinated control of PM₂.₅ and O₃, and can assist in the implementation of regional joint prevention and control strategies for air pollutants.
    Keywords aerosols ; air ; coasts ; environmental management ; models ; ozone ; spectroscopy ; winter ; Central Asia ; China ; Korean Peninsula ; Yellow Sea
    Language English
    Dates of publication 2022-1001
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 184882-3
    ISSN 1095-8630 ; 0301-4797
    ISSN (online) 1095-8630
    ISSN 0301-4797
    DOI 10.1016/j.jenvman.2022.115721
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    In stock of ZB MED Bonn / Germany

    Z 7556: Show issues

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  7. Article: First global observation of tropospheric formaldehyde from Chinese GaoFen-5 satellite: Locating source of volatile organic compounds

    Su, Wenjing / Liu, Cheng / Hu, Qihou / Zhang, Chengxin / Liu, Haoran / Xia, Congzi / Zhao, Fei / Liu, Ting / Lin, Jinan / Chen, Yujia

    Environmental pollution. 2022 Mar. 15, v. 297

    2022  

    Abstract: Satellite remote sensing is an important technique providing long-term and large-scale information of formaldehyde (HCHO), which plays a crucial role in atmospheric chemistry. Low signal-to-noise ratio and poor stability of the Environmental Trace Gases ... ...

    Abstract Satellite remote sensing is an important technique providing long-term and large-scale information of formaldehyde (HCHO), which plays a crucial role in atmospheric chemistry. Low signal-to-noise ratio and poor stability of the Environmental Trace Gases Monitoring Instrument (EMI) On board Gaofen-5 satellite, the first Chinese space-borne spectrometer, make HCHO retrieval extremely difficult. Here we firstly retrieved HCHO vertical column densities (VCDs) from EMI through in-flight spectral calibration, retrieval setting optimization and stripe correction. Retrieved EMI HCHO VCDs correlate well with those measured by Multi-AXis Differential Optical Absorption Spectroscopy (MAX-DOAS) with normalize mean bias (NMB) below 25%. EMI HCHO VCDs are comparable with those observed by Ozone Monitoring Instrument (OMI) and TROPOspheric Monitoring Instrument (TROPOMI). This study reveals that HCHO can be observed successfully by algorithm optimization despite of poor performance of space-borne spectrometer. The retrieved EMI HCHO VCDs are applied to locate emission sources of volatile organic compounds (VOCs).
    Keywords algorithms ; atmospheric chemistry ; formaldehyde ; ozone ; pollution ; satellites ; signal-to-noise ratio ; spectrometers ; spectroscopy ; troposphere ; volatile organic compounds
    Language English
    Dates of publication 2022-0315
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 280652-6
    ISSN 1873-6424 ; 0013-9327 ; 0269-7491
    ISSN (online) 1873-6424
    ISSN 0013-9327 ; 0269-7491
    DOI 10.1016/j.envpol.2021.118691
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    In stock of ZB MED Bonn / Germany

    Z 4136: Show issues

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  8. Article ; Online: First global observation of tropospheric formaldehyde from Chinese GaoFen-5 satellite: Locating source of volatile organic compounds.

    Su, Wenjing / Liu, Cheng / Hu, Qihou / Zhang, Chengxin / Liu, Haoran / Xia, Congzi / Zhao, Fei / Liu, Ting / Lin, Jinan / Chen, Yujia

    Environmental pollution (Barking, Essex : 1987)

    2021  Volume 297, Page(s) 118691

    Abstract: Satellite remote sensing is an important technique providing long-term and large-scale information of formaldehyde (HCHO), which plays a crucial role in atmospheric chemistry. Low signal-to-noise ratio and poor stability of the Environmental Trace Gases ... ...

    Abstract Satellite remote sensing is an important technique providing long-term and large-scale information of formaldehyde (HCHO), which plays a crucial role in atmospheric chemistry. Low signal-to-noise ratio and poor stability of the Environmental Trace Gases Monitoring Instrument (EMI) On board Gaofen-5 satellite, the first Chinese space-borne spectrometer, make HCHO retrieval extremely difficult. Here we firstly retrieved HCHO vertical column densities (VCDs) from EMI through in-flight spectral calibration, retrieval setting optimization and stripe correction. Retrieved EMI HCHO VCDs correlate well with those measured by Multi-AXis Differential Optical Absorption Spectroscopy (MAX-DOAS) with normalize mean bias (NMB) below 25%. EMI HCHO VCDs are comparable with those observed by Ozone Monitoring Instrument (OMI) and TROPOspheric Monitoring Instrument (TROPOMI). This study reveals that HCHO can be observed successfully by algorithm optimization despite of poor performance of space-borne spectrometer. The retrieved EMI HCHO VCDs are applied to locate emission sources of volatile organic compounds (VOCs).
    MeSH term(s) Air Pollutants/analysis ; China ; Formaldehyde/analysis ; Nitrogen Dioxide/analysis ; Ozone/analysis ; Volatile Organic Compounds
    Chemical Substances Air Pollutants ; Volatile Organic Compounds ; Formaldehyde (1HG84L3525) ; Ozone (66H7ZZK23N) ; Nitrogen Dioxide (S7G510RUBH)
    Language English
    Publishing date 2021-12-15
    Publishing country England
    Document type Journal Article
    ZDB-ID 280652-6
    ISSN 1873-6424 ; 0013-9327 ; 0269-7491
    ISSN (online) 1873-6424
    ISSN 0013-9327 ; 0269-7491
    DOI 10.1016/j.envpol.2021.118691
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2599: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  9. Book ; Online: Ground-based vertical profile observations of atmospheric composition on the Tibetan Plateau (2017–2019)

    Xing, Chengzhi / Liu, Cheng / Wu, Hongyu / Lin, Jinan / Wang, Fan / Wang, Shuntian / Gao, Meng

    eISSN: 1866-3516

    2021  

    Abstract: The Tibetan Plateau (TP) plays an essential role in modulating regional and global climate, and its influence on climate is also affected by human-related processes, including changes in atmospheric composition. However, observations of atmospheric ... ...

    Abstract The Tibetan Plateau (TP) plays an essential role in modulating regional and global climate, and its influence on climate is also affected by human-related processes, including changes in atmospheric composition. However, observations of atmospheric composition, especially vertical profile observations, remain sparse and rare on the TP, due to extremely high altitude, topographical heterogeneity and the grinding environment. Accordingly, the forcing and feedback of atmospheric composition from rapidly changing surrounding regions to regional environmental and climate change in the TP remains poorly understood. This paper introduces a high-time-resolution ( ∼15 min) vertical profile observational dataset of atmospheric composition (aerosols, NO 2 , HCHO and HONO) on the TP for more than 1 year (2017–2019) using a passive remote sensing technique. The diurnal pattern, vertical distribution and seasonal variations of these pollutants are documented here in detail. The sharing of this dataset would benefit the scientific community in exploring source–receptor relationships and the forcing and feedback of atmospheric composition on the TP to the regional and global climate. It also provides potential to improve satellite retrievals and to facilitate the development and improvement of models in cold regions. The dataset is freely available at Zenodo ( https://doi.org/10.5281/zenodo.5336460

    Xing, 2021).
    Subject code 333
    Language English
    Publishing date 2021-10-26
    Publishing country de
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Impacts of TROPOMI-Derived NO

    Zhu, Yizhi / Liu, Cheng / Hu, Qihou / Teng, Jiahua / You, Daian / Zhang, Chengxin / Ou, Jinping / Liu, Ting / Lin, Jinan / Xu, Tianyi / Hong, Xinhua

    ACS environmental Au

    2022  Volume 2, Issue 5, Page(s) 441–454

    Abstract: ... ...

    Abstract NO
    Language English
    Publishing date 2022-07-05
    Publishing country United States
    Document type Journal Article
    ISSN 2694-2518
    ISSN (online) 2694-2518
    DOI 10.1021/acsenvironau.2c00013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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