Atmospheric ozone chemistry and control strategies in Hangzhou, China: Application of a 0-D box model
A field campaign was carried out during May–September of 2018 at three sites in Hangzhou, representing residential (ZH), industrial (XS), and natural (HZHP) areas, respectively. The characteristics of precursors to ozone (O3) - volatile organic compounds (VOCs) and nitrogen (NOx) - revealed observab...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Zhao, Yanyun [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2020transfer abstract |
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| Übergeordnetes Werk: |
Enthalten in: Concordance of handheld reflectance confocal microscopy (RCM) with histopathology in the diagnosis of lentigo maligna (LM): A prospective study - Menge, Tyler D. ELSEVIER, 2016, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:246 ; year:2020 ; day:1 ; month:12 ; pages:0 |
| Links: |
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| DOI / URN: |
10.1016/j.atmosres.2020.105109 |
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ELV051788284 |
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| 245 | 1 | 0 | |a Atmospheric ozone chemistry and control strategies in Hangzhou, China: Application of a 0-D box model |
| 264 | 1 | |c 2020transfer abstract | |
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| 520 | |a A field campaign was carried out during May–September of 2018 at three sites in Hangzhou, representing residential (ZH), industrial (XS), and natural (HZHP) areas, respectively. The characteristics of precursors to ozone (O3) - volatile organic compounds (VOCs) and nitrogen (NOx) - revealed observably diversities among the three sites. A 0-D atmospheric box model contained the Master Chemical Mechanism (MCMv3.3.1) was implemented to study the O3-precursor sensitivity and O3 in-situ photochemical processing. The discussion of relative incremental reactivity (RIR) showed that O3 production at HZHP was mostly limited by both VOCs and NOx, while ZH and XS were generally identified as VOC-limited regime. More specifically, ethene, m-xylene, and toluene had the largest contributing to O3 production in Hangzhou. The simulated mixing ratios of hydroxyl radical (OH) were within same level among ZH, XS and HZHP, while the simulated mixing ratios of hydroperoxyl radical (HO2) at HZHP were much higher than the other two sites, indicating the different cyclic processes between OH and HO2 among the three sites. Modellings for various emission reduction scenarios were conducted, and the results implied that different strategies were needed for different areas in order to efficiently reduce O3 pollution. For example, the abatement ratio of anthropogenic VOCs (AVOCs) to NOx mixing ratios should be higher than 1.6 and 2.5 at ZH and XS, respectively, while we should target on reducing NOx instead of AVOCs at HZHP. The obtained results provide policy relevant guidance on understanding the photochemical pollution through fundamental chemical mechanism, and can assist local governments (Hangzhou) in taking effective control strategies to deal with O3 pollution. | ||
| 520 | |a A field campaign was carried out during May–September of 2018 at three sites in Hangzhou, representing residential (ZH), industrial (XS), and natural (HZHP) areas, respectively. The characteristics of precursors to ozone (O3) - volatile organic compounds (VOCs) and nitrogen (NOx) - revealed observably diversities among the three sites. A 0-D atmospheric box model contained the Master Chemical Mechanism (MCMv3.3.1) was implemented to study the O3-precursor sensitivity and O3 in-situ photochemical processing. The discussion of relative incremental reactivity (RIR) showed that O3 production at HZHP was mostly limited by both VOCs and NOx, while ZH and XS were generally identified as VOC-limited regime. More specifically, ethene, m-xylene, and toluene had the largest contributing to O3 production in Hangzhou. The simulated mixing ratios of hydroxyl radical (OH) were within same level among ZH, XS and HZHP, while the simulated mixing ratios of hydroperoxyl radical (HO2) at HZHP were much higher than the other two sites, indicating the different cyclic processes between OH and HO2 among the three sites. Modellings for various emission reduction scenarios were conducted, and the results implied that different strategies were needed for different areas in order to efficiently reduce O3 pollution. For example, the abatement ratio of anthropogenic VOCs (AVOCs) to NOx mixing ratios should be higher than 1.6 and 2.5 at ZH and XS, respectively, while we should target on reducing NOx instead of AVOCs at HZHP. The obtained results provide policy relevant guidance on understanding the photochemical pollution through fundamental chemical mechanism, and can assist local governments (Hangzhou) in taking effective control strategies to deal with O3 pollution. | ||
| 700 | 1 | |a Chen, Linghong |4 oth | |
| 700 | 1 | |a Li, Kangwei |4 oth | |
| 700 | 1 | |a Han, Lixia |4 oth | |
| 700 | 1 | |a Zhang, Xin |4 oth | |
| 700 | 1 | |a Wu, Xuecheng |4 oth | |
| 700 | 1 | |a Gao, Xiang |4 oth | |
| 700 | 1 | |a Azzi, Merched |4 oth | |
| 700 | 1 | |a Cen, Kefa |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier |a Menge, Tyler D. ELSEVIER |t Concordance of handheld reflectance confocal microscopy (RCM) with histopathology in the diagnosis of lentigo maligna (LM): A prospective study |d 2016 |g Amsterdam [u.a.] |w (DE-627)ELV013867350 |
| 773 | 1 | 8 | |g volume:246 |g year:2020 |g day:1 |g month:12 |g pages:0 |
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10.1016/j.atmosres.2020.105109 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001179.pica (DE-627)ELV051788284 (ELSEVIER)S0169-8095(20)30361-6 DE-627 ger DE-627 rakwb eng 610 VZ 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Zhao, Yanyun verfasserin aut Atmospheric ozone chemistry and control strategies in Hangzhou, China: Application of a 0-D box model 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A field campaign was carried out during May–September of 2018 at three sites in Hangzhou, representing residential (ZH), industrial (XS), and natural (HZHP) areas, respectively. The characteristics of precursors to ozone (O3) - volatile organic compounds (VOCs) and nitrogen (NOx) - revealed observably diversities among the three sites. A 0-D atmospheric box model contained the Master Chemical Mechanism (MCMv3.3.1) was implemented to study the O3-precursor sensitivity and O3 in-situ photochemical processing. The discussion of relative incremental reactivity (RIR) showed that O3 production at HZHP was mostly limited by both VOCs and NOx, while ZH and XS were generally identified as VOC-limited regime. More specifically, ethene, m-xylene, and toluene had the largest contributing to O3 production in Hangzhou. The simulated mixing ratios of hydroxyl radical (OH) were within same level among ZH, XS and HZHP, while the simulated mixing ratios of hydroperoxyl radical (HO2) at HZHP were much higher than the other two sites, indicating the different cyclic processes between OH and HO2 among the three sites. Modellings for various emission reduction scenarios were conducted, and the results implied that different strategies were needed for different areas in order to efficiently reduce O3 pollution. For example, the abatement ratio of anthropogenic VOCs (AVOCs) to NOx mixing ratios should be higher than 1.6 and 2.5 at ZH and XS, respectively, while we should target on reducing NOx instead of AVOCs at HZHP. The obtained results provide policy relevant guidance on understanding the photochemical pollution through fundamental chemical mechanism, and can assist local governments (Hangzhou) in taking effective control strategies to deal with O3 pollution. A field campaign was carried out during May–September of 2018 at three sites in Hangzhou, representing residential (ZH), industrial (XS), and natural (HZHP) areas, respectively. The characteristics of precursors to ozone (O3) - volatile organic compounds (VOCs) and nitrogen (NOx) - revealed observably diversities among the three sites. A 0-D atmospheric box model contained the Master Chemical Mechanism (MCMv3.3.1) was implemented to study the O3-precursor sensitivity and O3 in-situ photochemical processing. The discussion of relative incremental reactivity (RIR) showed that O3 production at HZHP was mostly limited by both VOCs and NOx, while ZH and XS were generally identified as VOC-limited regime. More specifically, ethene, m-xylene, and toluene had the largest contributing to O3 production in Hangzhou. The simulated mixing ratios of hydroxyl radical (OH) were within same level among ZH, XS and HZHP, while the simulated mixing ratios of hydroperoxyl radical (HO2) at HZHP were much higher than the other two sites, indicating the different cyclic processes between OH and HO2 among the three sites. Modellings for various emission reduction scenarios were conducted, and the results implied that different strategies were needed for different areas in order to efficiently reduce O3 pollution. For example, the abatement ratio of anthropogenic VOCs (AVOCs) to NOx mixing ratios should be higher than 1.6 and 2.5 at ZH and XS, respectively, while we should target on reducing NOx instead of AVOCs at HZHP. The obtained results provide policy relevant guidance on understanding the photochemical pollution through fundamental chemical mechanism, and can assist local governments (Hangzhou) in taking effective control strategies to deal with O3 pollution. Chen, Linghong oth Li, Kangwei oth Han, Lixia oth Zhang, Xin oth Wu, Xuecheng oth Gao, Xiang oth Azzi, Merched oth Cen, Kefa oth Enthalten in Elsevier Menge, Tyler D. ELSEVIER Concordance of handheld reflectance confocal microscopy (RCM) with histopathology in the diagnosis of lentigo maligna (LM): A prospective study 2016 Amsterdam [u.a.] (DE-627)ELV013867350 volume:246 year:2020 day:1 month:12 pages:0 https://doi.org/10.1016/j.atmosres.2020.105109 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO GBV_ILN_40 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 246 2020 1 1201 0 |
| spelling |
10.1016/j.atmosres.2020.105109 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001179.pica (DE-627)ELV051788284 (ELSEVIER)S0169-8095(20)30361-6 DE-627 ger DE-627 rakwb eng 610 VZ 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Zhao, Yanyun verfasserin aut Atmospheric ozone chemistry and control strategies in Hangzhou, China: Application of a 0-D box model 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A field campaign was carried out during May–September of 2018 at three sites in Hangzhou, representing residential (ZH), industrial (XS), and natural (HZHP) areas, respectively. The characteristics of precursors to ozone (O3) - volatile organic compounds (VOCs) and nitrogen (NOx) - revealed observably diversities among the three sites. A 0-D atmospheric box model contained the Master Chemical Mechanism (MCMv3.3.1) was implemented to study the O3-precursor sensitivity and O3 in-situ photochemical processing. The discussion of relative incremental reactivity (RIR) showed that O3 production at HZHP was mostly limited by both VOCs and NOx, while ZH and XS were generally identified as VOC-limited regime. More specifically, ethene, m-xylene, and toluene had the largest contributing to O3 production in Hangzhou. The simulated mixing ratios of hydroxyl radical (OH) were within same level among ZH, XS and HZHP, while the simulated mixing ratios of hydroperoxyl radical (HO2) at HZHP were much higher than the other two sites, indicating the different cyclic processes between OH and HO2 among the three sites. Modellings for various emission reduction scenarios were conducted, and the results implied that different strategies were needed for different areas in order to efficiently reduce O3 pollution. For example, the abatement ratio of anthropogenic VOCs (AVOCs) to NOx mixing ratios should be higher than 1.6 and 2.5 at ZH and XS, respectively, while we should target on reducing NOx instead of AVOCs at HZHP. The obtained results provide policy relevant guidance on understanding the photochemical pollution through fundamental chemical mechanism, and can assist local governments (Hangzhou) in taking effective control strategies to deal with O3 pollution. A field campaign was carried out during May–September of 2018 at three sites in Hangzhou, representing residential (ZH), industrial (XS), and natural (HZHP) areas, respectively. The characteristics of precursors to ozone (O3) - volatile organic compounds (VOCs) and nitrogen (NOx) - revealed observably diversities among the three sites. A 0-D atmospheric box model contained the Master Chemical Mechanism (MCMv3.3.1) was implemented to study the O3-precursor sensitivity and O3 in-situ photochemical processing. The discussion of relative incremental reactivity (RIR) showed that O3 production at HZHP was mostly limited by both VOCs and NOx, while ZH and XS were generally identified as VOC-limited regime. More specifically, ethene, m-xylene, and toluene had the largest contributing to O3 production in Hangzhou. The simulated mixing ratios of hydroxyl radical (OH) were within same level among ZH, XS and HZHP, while the simulated mixing ratios of hydroperoxyl radical (HO2) at HZHP were much higher than the other two sites, indicating the different cyclic processes between OH and HO2 among the three sites. Modellings for various emission reduction scenarios were conducted, and the results implied that different strategies were needed for different areas in order to efficiently reduce O3 pollution. For example, the abatement ratio of anthropogenic VOCs (AVOCs) to NOx mixing ratios should be higher than 1.6 and 2.5 at ZH and XS, respectively, while we should target on reducing NOx instead of AVOCs at HZHP. The obtained results provide policy relevant guidance on understanding the photochemical pollution through fundamental chemical mechanism, and can assist local governments (Hangzhou) in taking effective control strategies to deal with O3 pollution. Chen, Linghong oth Li, Kangwei oth Han, Lixia oth Zhang, Xin oth Wu, Xuecheng oth Gao, Xiang oth Azzi, Merched oth Cen, Kefa oth Enthalten in Elsevier Menge, Tyler D. ELSEVIER Concordance of handheld reflectance confocal microscopy (RCM) with histopathology in the diagnosis of lentigo maligna (LM): A prospective study 2016 Amsterdam [u.a.] (DE-627)ELV013867350 volume:246 year:2020 day:1 month:12 pages:0 https://doi.org/10.1016/j.atmosres.2020.105109 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO GBV_ILN_40 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 246 2020 1 1201 0 |
| allfields_unstemmed |
10.1016/j.atmosres.2020.105109 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001179.pica (DE-627)ELV051788284 (ELSEVIER)S0169-8095(20)30361-6 DE-627 ger DE-627 rakwb eng 610 VZ 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Zhao, Yanyun verfasserin aut Atmospheric ozone chemistry and control strategies in Hangzhou, China: Application of a 0-D box model 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A field campaign was carried out during May–September of 2018 at three sites in Hangzhou, representing residential (ZH), industrial (XS), and natural (HZHP) areas, respectively. The characteristics of precursors to ozone (O3) - volatile organic compounds (VOCs) and nitrogen (NOx) - revealed observably diversities among the three sites. A 0-D atmospheric box model contained the Master Chemical Mechanism (MCMv3.3.1) was implemented to study the O3-precursor sensitivity and O3 in-situ photochemical processing. The discussion of relative incremental reactivity (RIR) showed that O3 production at HZHP was mostly limited by both VOCs and NOx, while ZH and XS were generally identified as VOC-limited regime. More specifically, ethene, m-xylene, and toluene had the largest contributing to O3 production in Hangzhou. The simulated mixing ratios of hydroxyl radical (OH) were within same level among ZH, XS and HZHP, while the simulated mixing ratios of hydroperoxyl radical (HO2) at HZHP were much higher than the other two sites, indicating the different cyclic processes between OH and HO2 among the three sites. Modellings for various emission reduction scenarios were conducted, and the results implied that different strategies were needed for different areas in order to efficiently reduce O3 pollution. For example, the abatement ratio of anthropogenic VOCs (AVOCs) to NOx mixing ratios should be higher than 1.6 and 2.5 at ZH and XS, respectively, while we should target on reducing NOx instead of AVOCs at HZHP. The obtained results provide policy relevant guidance on understanding the photochemical pollution through fundamental chemical mechanism, and can assist local governments (Hangzhou) in taking effective control strategies to deal with O3 pollution. A field campaign was carried out during May–September of 2018 at three sites in Hangzhou, representing residential (ZH), industrial (XS), and natural (HZHP) areas, respectively. The characteristics of precursors to ozone (O3) - volatile organic compounds (VOCs) and nitrogen (NOx) - revealed observably diversities among the three sites. A 0-D atmospheric box model contained the Master Chemical Mechanism (MCMv3.3.1) was implemented to study the O3-precursor sensitivity and O3 in-situ photochemical processing. The discussion of relative incremental reactivity (RIR) showed that O3 production at HZHP was mostly limited by both VOCs and NOx, while ZH and XS were generally identified as VOC-limited regime. More specifically, ethene, m-xylene, and toluene had the largest contributing to O3 production in Hangzhou. The simulated mixing ratios of hydroxyl radical (OH) were within same level among ZH, XS and HZHP, while the simulated mixing ratios of hydroperoxyl radical (HO2) at HZHP were much higher than the other two sites, indicating the different cyclic processes between OH and HO2 among the three sites. Modellings for various emission reduction scenarios were conducted, and the results implied that different strategies were needed for different areas in order to efficiently reduce O3 pollution. For example, the abatement ratio of anthropogenic VOCs (AVOCs) to NOx mixing ratios should be higher than 1.6 and 2.5 at ZH and XS, respectively, while we should target on reducing NOx instead of AVOCs at HZHP. The obtained results provide policy relevant guidance on understanding the photochemical pollution through fundamental chemical mechanism, and can assist local governments (Hangzhou) in taking effective control strategies to deal with O3 pollution. Chen, Linghong oth Li, Kangwei oth Han, Lixia oth Zhang, Xin oth Wu, Xuecheng oth Gao, Xiang oth Azzi, Merched oth Cen, Kefa oth Enthalten in Elsevier Menge, Tyler D. ELSEVIER Concordance of handheld reflectance confocal microscopy (RCM) with histopathology in the diagnosis of lentigo maligna (LM): A prospective study 2016 Amsterdam [u.a.] (DE-627)ELV013867350 volume:246 year:2020 day:1 month:12 pages:0 https://doi.org/10.1016/j.atmosres.2020.105109 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO GBV_ILN_40 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 246 2020 1 1201 0 |
| allfieldsGer |
10.1016/j.atmosres.2020.105109 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001179.pica (DE-627)ELV051788284 (ELSEVIER)S0169-8095(20)30361-6 DE-627 ger DE-627 rakwb eng 610 VZ 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Zhao, Yanyun verfasserin aut Atmospheric ozone chemistry and control strategies in Hangzhou, China: Application of a 0-D box model 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A field campaign was carried out during May–September of 2018 at three sites in Hangzhou, representing residential (ZH), industrial (XS), and natural (HZHP) areas, respectively. The characteristics of precursors to ozone (O3) - volatile organic compounds (VOCs) and nitrogen (NOx) - revealed observably diversities among the three sites. A 0-D atmospheric box model contained the Master Chemical Mechanism (MCMv3.3.1) was implemented to study the O3-precursor sensitivity and O3 in-situ photochemical processing. The discussion of relative incremental reactivity (RIR) showed that O3 production at HZHP was mostly limited by both VOCs and NOx, while ZH and XS were generally identified as VOC-limited regime. More specifically, ethene, m-xylene, and toluene had the largest contributing to O3 production in Hangzhou. The simulated mixing ratios of hydroxyl radical (OH) were within same level among ZH, XS and HZHP, while the simulated mixing ratios of hydroperoxyl radical (HO2) at HZHP were much higher than the other two sites, indicating the different cyclic processes between OH and HO2 among the three sites. Modellings for various emission reduction scenarios were conducted, and the results implied that different strategies were needed for different areas in order to efficiently reduce O3 pollution. For example, the abatement ratio of anthropogenic VOCs (AVOCs) to NOx mixing ratios should be higher than 1.6 and 2.5 at ZH and XS, respectively, while we should target on reducing NOx instead of AVOCs at HZHP. The obtained results provide policy relevant guidance on understanding the photochemical pollution through fundamental chemical mechanism, and can assist local governments (Hangzhou) in taking effective control strategies to deal with O3 pollution. A field campaign was carried out during May–September of 2018 at three sites in Hangzhou, representing residential (ZH), industrial (XS), and natural (HZHP) areas, respectively. The characteristics of precursors to ozone (O3) - volatile organic compounds (VOCs) and nitrogen (NOx) - revealed observably diversities among the three sites. A 0-D atmospheric box model contained the Master Chemical Mechanism (MCMv3.3.1) was implemented to study the O3-precursor sensitivity and O3 in-situ photochemical processing. The discussion of relative incremental reactivity (RIR) showed that O3 production at HZHP was mostly limited by both VOCs and NOx, while ZH and XS were generally identified as VOC-limited regime. More specifically, ethene, m-xylene, and toluene had the largest contributing to O3 production in Hangzhou. The simulated mixing ratios of hydroxyl radical (OH) were within same level among ZH, XS and HZHP, while the simulated mixing ratios of hydroperoxyl radical (HO2) at HZHP were much higher than the other two sites, indicating the different cyclic processes between OH and HO2 among the three sites. Modellings for various emission reduction scenarios were conducted, and the results implied that different strategies were needed for different areas in order to efficiently reduce O3 pollution. For example, the abatement ratio of anthropogenic VOCs (AVOCs) to NOx mixing ratios should be higher than 1.6 and 2.5 at ZH and XS, respectively, while we should target on reducing NOx instead of AVOCs at HZHP. The obtained results provide policy relevant guidance on understanding the photochemical pollution through fundamental chemical mechanism, and can assist local governments (Hangzhou) in taking effective control strategies to deal with O3 pollution. Chen, Linghong oth Li, Kangwei oth Han, Lixia oth Zhang, Xin oth Wu, Xuecheng oth Gao, Xiang oth Azzi, Merched oth Cen, Kefa oth Enthalten in Elsevier Menge, Tyler D. ELSEVIER Concordance of handheld reflectance confocal microscopy (RCM) with histopathology in the diagnosis of lentigo maligna (LM): A prospective study 2016 Amsterdam [u.a.] (DE-627)ELV013867350 volume:246 year:2020 day:1 month:12 pages:0 https://doi.org/10.1016/j.atmosres.2020.105109 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO GBV_ILN_40 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 246 2020 1 1201 0 |
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10.1016/j.atmosres.2020.105109 doi /cbs_pica/cbs_olc/import_discovery/elsevier/einzuspielen/GBV00000000001179.pica (DE-627)ELV051788284 (ELSEVIER)S0169-8095(20)30361-6 DE-627 ger DE-627 rakwb eng 610 VZ 333.7 610 VZ 43.12 bkl 43.13 bkl 44.13 bkl Zhao, Yanyun verfasserin aut Atmospheric ozone chemistry and control strategies in Hangzhou, China: Application of a 0-D box model 2020transfer abstract nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier A field campaign was carried out during May–September of 2018 at three sites in Hangzhou, representing residential (ZH), industrial (XS), and natural (HZHP) areas, respectively. The characteristics of precursors to ozone (O3) - volatile organic compounds (VOCs) and nitrogen (NOx) - revealed observably diversities among the three sites. A 0-D atmospheric box model contained the Master Chemical Mechanism (MCMv3.3.1) was implemented to study the O3-precursor sensitivity and O3 in-situ photochemical processing. The discussion of relative incremental reactivity (RIR) showed that O3 production at HZHP was mostly limited by both VOCs and NOx, while ZH and XS were generally identified as VOC-limited regime. More specifically, ethene, m-xylene, and toluene had the largest contributing to O3 production in Hangzhou. The simulated mixing ratios of hydroxyl radical (OH) were within same level among ZH, XS and HZHP, while the simulated mixing ratios of hydroperoxyl radical (HO2) at HZHP were much higher than the other two sites, indicating the different cyclic processes between OH and HO2 among the three sites. Modellings for various emission reduction scenarios were conducted, and the results implied that different strategies were needed for different areas in order to efficiently reduce O3 pollution. For example, the abatement ratio of anthropogenic VOCs (AVOCs) to NOx mixing ratios should be higher than 1.6 and 2.5 at ZH and XS, respectively, while we should target on reducing NOx instead of AVOCs at HZHP. The obtained results provide policy relevant guidance on understanding the photochemical pollution through fundamental chemical mechanism, and can assist local governments (Hangzhou) in taking effective control strategies to deal with O3 pollution. A field campaign was carried out during May–September of 2018 at three sites in Hangzhou, representing residential (ZH), industrial (XS), and natural (HZHP) areas, respectively. The characteristics of precursors to ozone (O3) - volatile organic compounds (VOCs) and nitrogen (NOx) - revealed observably diversities among the three sites. A 0-D atmospheric box model contained the Master Chemical Mechanism (MCMv3.3.1) was implemented to study the O3-precursor sensitivity and O3 in-situ photochemical processing. The discussion of relative incremental reactivity (RIR) showed that O3 production at HZHP was mostly limited by both VOCs and NOx, while ZH and XS were generally identified as VOC-limited regime. More specifically, ethene, m-xylene, and toluene had the largest contributing to O3 production in Hangzhou. The simulated mixing ratios of hydroxyl radical (OH) were within same level among ZH, XS and HZHP, while the simulated mixing ratios of hydroperoxyl radical (HO2) at HZHP were much higher than the other two sites, indicating the different cyclic processes between OH and HO2 among the three sites. Modellings for various emission reduction scenarios were conducted, and the results implied that different strategies were needed for different areas in order to efficiently reduce O3 pollution. For example, the abatement ratio of anthropogenic VOCs (AVOCs) to NOx mixing ratios should be higher than 1.6 and 2.5 at ZH and XS, respectively, while we should target on reducing NOx instead of AVOCs at HZHP. The obtained results provide policy relevant guidance on understanding the photochemical pollution through fundamental chemical mechanism, and can assist local governments (Hangzhou) in taking effective control strategies to deal with O3 pollution. Chen, Linghong oth Li, Kangwei oth Han, Lixia oth Zhang, Xin oth Wu, Xuecheng oth Gao, Xiang oth Azzi, Merched oth Cen, Kefa oth Enthalten in Elsevier Menge, Tyler D. ELSEVIER Concordance of handheld reflectance confocal microscopy (RCM) with histopathology in the diagnosis of lentigo maligna (LM): A prospective study 2016 Amsterdam [u.a.] (DE-627)ELV013867350 volume:246 year:2020 day:1 month:12 pages:0 https://doi.org/10.1016/j.atmosres.2020.105109 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA SSG-OPC-GGO GBV_ILN_40 43.12 Umweltchemie VZ 43.13 Umwelttoxikologie VZ 44.13 Medizinische Ökologie VZ AR 246 2020 1 1201 0 |
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Concordance of handheld reflectance confocal microscopy (RCM) with histopathology in the diagnosis of lentigo maligna (LM): A prospective study |
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atmospheric ozone chemistry and control strategies in hangzhou, china: application of a 0-d box model |
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Atmospheric ozone chemistry and control strategies in Hangzhou, China: Application of a 0-D box model |
| abstract |
A field campaign was carried out during May–September of 2018 at three sites in Hangzhou, representing residential (ZH), industrial (XS), and natural (HZHP) areas, respectively. The characteristics of precursors to ozone (O3) - volatile organic compounds (VOCs) and nitrogen (NOx) - revealed observably diversities among the three sites. A 0-D atmospheric box model contained the Master Chemical Mechanism (MCMv3.3.1) was implemented to study the O3-precursor sensitivity and O3 in-situ photochemical processing. The discussion of relative incremental reactivity (RIR) showed that O3 production at HZHP was mostly limited by both VOCs and NOx, while ZH and XS were generally identified as VOC-limited regime. More specifically, ethene, m-xylene, and toluene had the largest contributing to O3 production in Hangzhou. The simulated mixing ratios of hydroxyl radical (OH) were within same level among ZH, XS and HZHP, while the simulated mixing ratios of hydroperoxyl radical (HO2) at HZHP were much higher than the other two sites, indicating the different cyclic processes between OH and HO2 among the three sites. Modellings for various emission reduction scenarios were conducted, and the results implied that different strategies were needed for different areas in order to efficiently reduce O3 pollution. For example, the abatement ratio of anthropogenic VOCs (AVOCs) to NOx mixing ratios should be higher than 1.6 and 2.5 at ZH and XS, respectively, while we should target on reducing NOx instead of AVOCs at HZHP. The obtained results provide policy relevant guidance on understanding the photochemical pollution through fundamental chemical mechanism, and can assist local governments (Hangzhou) in taking effective control strategies to deal with O3 pollution. |
| abstractGer |
A field campaign was carried out during May–September of 2018 at three sites in Hangzhou, representing residential (ZH), industrial (XS), and natural (HZHP) areas, respectively. The characteristics of precursors to ozone (O3) - volatile organic compounds (VOCs) and nitrogen (NOx) - revealed observably diversities among the three sites. A 0-D atmospheric box model contained the Master Chemical Mechanism (MCMv3.3.1) was implemented to study the O3-precursor sensitivity and O3 in-situ photochemical processing. The discussion of relative incremental reactivity (RIR) showed that O3 production at HZHP was mostly limited by both VOCs and NOx, while ZH and XS were generally identified as VOC-limited regime. More specifically, ethene, m-xylene, and toluene had the largest contributing to O3 production in Hangzhou. The simulated mixing ratios of hydroxyl radical (OH) were within same level among ZH, XS and HZHP, while the simulated mixing ratios of hydroperoxyl radical (HO2) at HZHP were much higher than the other two sites, indicating the different cyclic processes between OH and HO2 among the three sites. Modellings for various emission reduction scenarios were conducted, and the results implied that different strategies were needed for different areas in order to efficiently reduce O3 pollution. For example, the abatement ratio of anthropogenic VOCs (AVOCs) to NOx mixing ratios should be higher than 1.6 and 2.5 at ZH and XS, respectively, while we should target on reducing NOx instead of AVOCs at HZHP. The obtained results provide policy relevant guidance on understanding the photochemical pollution through fundamental chemical mechanism, and can assist local governments (Hangzhou) in taking effective control strategies to deal with O3 pollution. |
| abstract_unstemmed |
A field campaign was carried out during May–September of 2018 at three sites in Hangzhou, representing residential (ZH), industrial (XS), and natural (HZHP) areas, respectively. The characteristics of precursors to ozone (O3) - volatile organic compounds (VOCs) and nitrogen (NOx) - revealed observably diversities among the three sites. A 0-D atmospheric box model contained the Master Chemical Mechanism (MCMv3.3.1) was implemented to study the O3-precursor sensitivity and O3 in-situ photochemical processing. The discussion of relative incremental reactivity (RIR) showed that O3 production at HZHP was mostly limited by both VOCs and NOx, while ZH and XS were generally identified as VOC-limited regime. More specifically, ethene, m-xylene, and toluene had the largest contributing to O3 production in Hangzhou. The simulated mixing ratios of hydroxyl radical (OH) were within same level among ZH, XS and HZHP, while the simulated mixing ratios of hydroperoxyl radical (HO2) at HZHP were much higher than the other two sites, indicating the different cyclic processes between OH and HO2 among the three sites. Modellings for various emission reduction scenarios were conducted, and the results implied that different strategies were needed for different areas in order to efficiently reduce O3 pollution. For example, the abatement ratio of anthropogenic VOCs (AVOCs) to NOx mixing ratios should be higher than 1.6 and 2.5 at ZH and XS, respectively, while we should target on reducing NOx instead of AVOCs at HZHP. The obtained results provide policy relevant guidance on understanding the photochemical pollution through fundamental chemical mechanism, and can assist local governments (Hangzhou) in taking effective control strategies to deal with O3 pollution. |
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Atmospheric ozone chemistry and control strategies in Hangzhou, China: Application of a 0-D box model |
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Chen, Linghong Li, Kangwei Han, Lixia Zhang, Xin Wu, Xuecheng Gao, Xiang Azzi, Merched Cen, Kefa |
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Chen, Linghong Li, Kangwei Han, Lixia Zhang, Xin Wu, Xuecheng Gao, Xiang Azzi, Merched Cen, Kefa |
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10.1016/j.atmosres.2020.105109 |
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2024-07-06T21:14:00.583Z |
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