Characterization of oxalic acid-containing particles in summer and winter seasons in Chengdu, China
Oxalic acid is the most abundant dicarboxylic acid in the atmosphere, but the processes involved in its formation in ambient aerosols are still uncertainty. We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Huang, Xiaojuan [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2019transfer abstract |
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| Schlagwörter: |
Potential source contribution function |
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| Umfang: |
9 |
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| Übergeordnetes Werk: |
Enthalten in: The internal pudendal artery turnover (IPAT) flap: A new, simple and reliable technique for perineal reconstruction - Nassar, M.K. ELSEVIER, 2021, Amsterdam [u.a.] |
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| Übergeordnetes Werk: |
volume:198 ; year:2019 ; day:1 ; month:02 ; pages:133-141 ; extent:9 |
| Links: |
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| DOI / URN: |
10.1016/j.atmosenv.2018.10.050 |
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| Katalog-ID: |
ELV045189188 |
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| 245 | 1 | 0 | |a Characterization of oxalic acid-containing particles in summer and winter seasons in Chengdu, China |
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| 520 | |a Oxalic acid is the most abundant dicarboxylic acid in the atmosphere, but the processes involved in its formation in ambient aerosols are still uncertainty. We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles in ambient aerosols in Chengdu during summer and winter seasons. C2 particles accounted for 2.9 and 0.7% of the total amount of fine particles detected in summer and winter, respectively. The C2 particles in each season were classified as nine different types of particle with significant seasonal differences in their contribution to total C2 particles. The oxalic acid-sulfate (C2-SO4) particles and particles related to biomass burning (i.e., oxalic acid-organic nitrogen (C2-CN) and oxalic acid-elemental carbon (C2-EC)) represented 78% of the total C2 particles in summer, whereas the contributions of oxalic acid-dust (C2-D), oxalic acid-sulfate and nitrate (C2-SN), and oxalic acid-nitrate (C2-NO3) particles clearly increased in winter. Although the peak diameter of the average size distribution of total C2 particles was larger in winter than in summer, there was no significant seasonal difference in the number fraction of the size-resolved particles for each type of particle. The peak concentration of total C2 particle in summer occurred in the afternoon, but there was no obvious diurnal variation in winter. We concluded that local photochemical oxidation in the daytime favored the production of C2 particles in summer, whereas in-cloud processing with subsequent long-distance transport had an important effect on C2 particles in winter. The potential source contribution function (PSCF) analysis indicated that local sources from the eastern, southeastern, and southern regions of Sichuan Province dominated the C2 particles in summer, whereas the contribution from the long-distance transport of aerosols originating outside Sichuan Province was significantly enhanced in winter. These findings will help us to understand the formation of secondary organic aerosols in the atmosphere over the Sichuan Basin. | ||
| 520 | |a Oxalic acid is the most abundant dicarboxylic acid in the atmosphere, but the processes involved in its formation in ambient aerosols are still uncertainty. We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles in ambient aerosols in Chengdu during summer and winter seasons. C2 particles accounted for 2.9 and 0.7% of the total amount of fine particles detected in summer and winter, respectively. The C2 particles in each season were classified as nine different types of particle with significant seasonal differences in their contribution to total C2 particles. The oxalic acid-sulfate (C2-SO4) particles and particles related to biomass burning (i.e., oxalic acid-organic nitrogen (C2-CN) and oxalic acid-elemental carbon (C2-EC)) represented 78% of the total C2 particles in summer, whereas the contributions of oxalic acid-dust (C2-D), oxalic acid-sulfate and nitrate (C2-SN), and oxalic acid-nitrate (C2-NO3) particles clearly increased in winter. Although the peak diameter of the average size distribution of total C2 particles was larger in winter than in summer, there was no significant seasonal difference in the number fraction of the size-resolved particles for each type of particle. The peak concentration of total C2 particle in summer occurred in the afternoon, but there was no obvious diurnal variation in winter. We concluded that local photochemical oxidation in the daytime favored the production of C2 particles in summer, whereas in-cloud processing with subsequent long-distance transport had an important effect on C2 particles in winter. The potential source contribution function (PSCF) analysis indicated that local sources from the eastern, southeastern, and southern regions of Sichuan Province dominated the C2 particles in summer, whereas the contribution from the long-distance transport of aerosols originating outside Sichuan Province was significantly enhanced in winter. These findings will help us to understand the formation of secondary organic aerosols in the atmosphere over the Sichuan Basin. | ||
| 650 | 7 | |a Seasonal differences |2 Elsevier | |
| 650 | 7 | |a Potential source contribution function |2 Elsevier | |
| 650 | 7 | |a Oxalic acid-containing particles |2 Elsevier | |
| 650 | 7 | |a Formation mechanisms |2 Elsevier | |
| 700 | 1 | |a Zhang, Junke |4 oth | |
| 700 | 1 | |a Luo, Bin |4 oth | |
| 700 | 1 | |a Luo, Jinqi |4 oth | |
| 700 | 1 | |a Zhang, Wei |4 oth | |
| 700 | 1 | |a Rao, Zhihan |4 oth | |
| 773 | 0 | 8 | |i Enthalten in |n Elsevier Science |a Nassar, M.K. ELSEVIER |t The internal pudendal artery turnover (IPAT) flap: A new, simple and reliable technique for perineal reconstruction |d 2021 |g Amsterdam [u.a.] |w (DE-627)ELV00656139X |
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10.1016/j.atmosenv.2018.10.050 doi GBV00000000000454.pica (DE-627)ELV045189188 (ELSEVIER)S1352-2310(18)30748-9 DE-627 ger DE-627 rakwb eng 610 VZ 44.65 bkl Huang, Xiaojuan verfasserin aut Characterization of oxalic acid-containing particles in summer and winter seasons in Chengdu, China 2019transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Oxalic acid is the most abundant dicarboxylic acid in the atmosphere, but the processes involved in its formation in ambient aerosols are still uncertainty. We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles in ambient aerosols in Chengdu during summer and winter seasons. C2 particles accounted for 2.9 and 0.7% of the total amount of fine particles detected in summer and winter, respectively. The C2 particles in each season were classified as nine different types of particle with significant seasonal differences in their contribution to total C2 particles. The oxalic acid-sulfate (C2-SO4) particles and particles related to biomass burning (i.e., oxalic acid-organic nitrogen (C2-CN) and oxalic acid-elemental carbon (C2-EC)) represented 78% of the total C2 particles in summer, whereas the contributions of oxalic acid-dust (C2-D), oxalic acid-sulfate and nitrate (C2-SN), and oxalic acid-nitrate (C2-NO3) particles clearly increased in winter. Although the peak diameter of the average size distribution of total C2 particles was larger in winter than in summer, there was no significant seasonal difference in the number fraction of the size-resolved particles for each type of particle. The peak concentration of total C2 particle in summer occurred in the afternoon, but there was no obvious diurnal variation in winter. We concluded that local photochemical oxidation in the daytime favored the production of C2 particles in summer, whereas in-cloud processing with subsequent long-distance transport had an important effect on C2 particles in winter. The potential source contribution function (PSCF) analysis indicated that local sources from the eastern, southeastern, and southern regions of Sichuan Province dominated the C2 particles in summer, whereas the contribution from the long-distance transport of aerosols originating outside Sichuan Province was significantly enhanced in winter. These findings will help us to understand the formation of secondary organic aerosols in the atmosphere over the Sichuan Basin. Oxalic acid is the most abundant dicarboxylic acid in the atmosphere, but the processes involved in its formation in ambient aerosols are still uncertainty. We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles in ambient aerosols in Chengdu during summer and winter seasons. C2 particles accounted for 2.9 and 0.7% of the total amount of fine particles detected in summer and winter, respectively. The C2 particles in each season were classified as nine different types of particle with significant seasonal differences in their contribution to total C2 particles. The oxalic acid-sulfate (C2-SO4) particles and particles related to biomass burning (i.e., oxalic acid-organic nitrogen (C2-CN) and oxalic acid-elemental carbon (C2-EC)) represented 78% of the total C2 particles in summer, whereas the contributions of oxalic acid-dust (C2-D), oxalic acid-sulfate and nitrate (C2-SN), and oxalic acid-nitrate (C2-NO3) particles clearly increased in winter. Although the peak diameter of the average size distribution of total C2 particles was larger in winter than in summer, there was no significant seasonal difference in the number fraction of the size-resolved particles for each type of particle. The peak concentration of total C2 particle in summer occurred in the afternoon, but there was no obvious diurnal variation in winter. We concluded that local photochemical oxidation in the daytime favored the production of C2 particles in summer, whereas in-cloud processing with subsequent long-distance transport had an important effect on C2 particles in winter. The potential source contribution function (PSCF) analysis indicated that local sources from the eastern, southeastern, and southern regions of Sichuan Province dominated the C2 particles in summer, whereas the contribution from the long-distance transport of aerosols originating outside Sichuan Province was significantly enhanced in winter. These findings will help us to understand the formation of secondary organic aerosols in the atmosphere over the Sichuan Basin. Seasonal differences Elsevier Potential source contribution function Elsevier Oxalic acid-containing particles Elsevier Formation mechanisms Elsevier Zhang, Junke oth Luo, Bin oth Luo, Jinqi oth Zhang, Wei oth Rao, Zhihan oth Enthalten in Elsevier Science Nassar, M.K. ELSEVIER The internal pudendal artery turnover (IPAT) flap: A new, simple and reliable technique for perineal reconstruction 2021 Amsterdam [u.a.] (DE-627)ELV00656139X volume:198 year:2019 day:1 month:02 pages:133-141 extent:9 https://doi.org/10.1016/j.atmosenv.2018.10.050 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.65 Chirurgie VZ AR 198 2019 1 0201 133-141 9 |
| spelling |
10.1016/j.atmosenv.2018.10.050 doi GBV00000000000454.pica (DE-627)ELV045189188 (ELSEVIER)S1352-2310(18)30748-9 DE-627 ger DE-627 rakwb eng 610 VZ 44.65 bkl Huang, Xiaojuan verfasserin aut Characterization of oxalic acid-containing particles in summer and winter seasons in Chengdu, China 2019transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Oxalic acid is the most abundant dicarboxylic acid in the atmosphere, but the processes involved in its formation in ambient aerosols are still uncertainty. We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles in ambient aerosols in Chengdu during summer and winter seasons. C2 particles accounted for 2.9 and 0.7% of the total amount of fine particles detected in summer and winter, respectively. The C2 particles in each season were classified as nine different types of particle with significant seasonal differences in their contribution to total C2 particles. The oxalic acid-sulfate (C2-SO4) particles and particles related to biomass burning (i.e., oxalic acid-organic nitrogen (C2-CN) and oxalic acid-elemental carbon (C2-EC)) represented 78% of the total C2 particles in summer, whereas the contributions of oxalic acid-dust (C2-D), oxalic acid-sulfate and nitrate (C2-SN), and oxalic acid-nitrate (C2-NO3) particles clearly increased in winter. Although the peak diameter of the average size distribution of total C2 particles was larger in winter than in summer, there was no significant seasonal difference in the number fraction of the size-resolved particles for each type of particle. The peak concentration of total C2 particle in summer occurred in the afternoon, but there was no obvious diurnal variation in winter. We concluded that local photochemical oxidation in the daytime favored the production of C2 particles in summer, whereas in-cloud processing with subsequent long-distance transport had an important effect on C2 particles in winter. The potential source contribution function (PSCF) analysis indicated that local sources from the eastern, southeastern, and southern regions of Sichuan Province dominated the C2 particles in summer, whereas the contribution from the long-distance transport of aerosols originating outside Sichuan Province was significantly enhanced in winter. These findings will help us to understand the formation of secondary organic aerosols in the atmosphere over the Sichuan Basin. Oxalic acid is the most abundant dicarboxylic acid in the atmosphere, but the processes involved in its formation in ambient aerosols are still uncertainty. We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles in ambient aerosols in Chengdu during summer and winter seasons. C2 particles accounted for 2.9 and 0.7% of the total amount of fine particles detected in summer and winter, respectively. The C2 particles in each season were classified as nine different types of particle with significant seasonal differences in their contribution to total C2 particles. The oxalic acid-sulfate (C2-SO4) particles and particles related to biomass burning (i.e., oxalic acid-organic nitrogen (C2-CN) and oxalic acid-elemental carbon (C2-EC)) represented 78% of the total C2 particles in summer, whereas the contributions of oxalic acid-dust (C2-D), oxalic acid-sulfate and nitrate (C2-SN), and oxalic acid-nitrate (C2-NO3) particles clearly increased in winter. Although the peak diameter of the average size distribution of total C2 particles was larger in winter than in summer, there was no significant seasonal difference in the number fraction of the size-resolved particles for each type of particle. The peak concentration of total C2 particle in summer occurred in the afternoon, but there was no obvious diurnal variation in winter. We concluded that local photochemical oxidation in the daytime favored the production of C2 particles in summer, whereas in-cloud processing with subsequent long-distance transport had an important effect on C2 particles in winter. The potential source contribution function (PSCF) analysis indicated that local sources from the eastern, southeastern, and southern regions of Sichuan Province dominated the C2 particles in summer, whereas the contribution from the long-distance transport of aerosols originating outside Sichuan Province was significantly enhanced in winter. These findings will help us to understand the formation of secondary organic aerosols in the atmosphere over the Sichuan Basin. Seasonal differences Elsevier Potential source contribution function Elsevier Oxalic acid-containing particles Elsevier Formation mechanisms Elsevier Zhang, Junke oth Luo, Bin oth Luo, Jinqi oth Zhang, Wei oth Rao, Zhihan oth Enthalten in Elsevier Science Nassar, M.K. ELSEVIER The internal pudendal artery turnover (IPAT) flap: A new, simple and reliable technique for perineal reconstruction 2021 Amsterdam [u.a.] (DE-627)ELV00656139X volume:198 year:2019 day:1 month:02 pages:133-141 extent:9 https://doi.org/10.1016/j.atmosenv.2018.10.050 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.65 Chirurgie VZ AR 198 2019 1 0201 133-141 9 |
| allfields_unstemmed |
10.1016/j.atmosenv.2018.10.050 doi GBV00000000000454.pica (DE-627)ELV045189188 (ELSEVIER)S1352-2310(18)30748-9 DE-627 ger DE-627 rakwb eng 610 VZ 44.65 bkl Huang, Xiaojuan verfasserin aut Characterization of oxalic acid-containing particles in summer and winter seasons in Chengdu, China 2019transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Oxalic acid is the most abundant dicarboxylic acid in the atmosphere, but the processes involved in its formation in ambient aerosols are still uncertainty. We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles in ambient aerosols in Chengdu during summer and winter seasons. C2 particles accounted for 2.9 and 0.7% of the total amount of fine particles detected in summer and winter, respectively. The C2 particles in each season were classified as nine different types of particle with significant seasonal differences in their contribution to total C2 particles. The oxalic acid-sulfate (C2-SO4) particles and particles related to biomass burning (i.e., oxalic acid-organic nitrogen (C2-CN) and oxalic acid-elemental carbon (C2-EC)) represented 78% of the total C2 particles in summer, whereas the contributions of oxalic acid-dust (C2-D), oxalic acid-sulfate and nitrate (C2-SN), and oxalic acid-nitrate (C2-NO3) particles clearly increased in winter. Although the peak diameter of the average size distribution of total C2 particles was larger in winter than in summer, there was no significant seasonal difference in the number fraction of the size-resolved particles for each type of particle. The peak concentration of total C2 particle in summer occurred in the afternoon, but there was no obvious diurnal variation in winter. We concluded that local photochemical oxidation in the daytime favored the production of C2 particles in summer, whereas in-cloud processing with subsequent long-distance transport had an important effect on C2 particles in winter. The potential source contribution function (PSCF) analysis indicated that local sources from the eastern, southeastern, and southern regions of Sichuan Province dominated the C2 particles in summer, whereas the contribution from the long-distance transport of aerosols originating outside Sichuan Province was significantly enhanced in winter. These findings will help us to understand the formation of secondary organic aerosols in the atmosphere over the Sichuan Basin. Oxalic acid is the most abundant dicarboxylic acid in the atmosphere, but the processes involved in its formation in ambient aerosols are still uncertainty. We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles in ambient aerosols in Chengdu during summer and winter seasons. C2 particles accounted for 2.9 and 0.7% of the total amount of fine particles detected in summer and winter, respectively. The C2 particles in each season were classified as nine different types of particle with significant seasonal differences in their contribution to total C2 particles. The oxalic acid-sulfate (C2-SO4) particles and particles related to biomass burning (i.e., oxalic acid-organic nitrogen (C2-CN) and oxalic acid-elemental carbon (C2-EC)) represented 78% of the total C2 particles in summer, whereas the contributions of oxalic acid-dust (C2-D), oxalic acid-sulfate and nitrate (C2-SN), and oxalic acid-nitrate (C2-NO3) particles clearly increased in winter. Although the peak diameter of the average size distribution of total C2 particles was larger in winter than in summer, there was no significant seasonal difference in the number fraction of the size-resolved particles for each type of particle. The peak concentration of total C2 particle in summer occurred in the afternoon, but there was no obvious diurnal variation in winter. We concluded that local photochemical oxidation in the daytime favored the production of C2 particles in summer, whereas in-cloud processing with subsequent long-distance transport had an important effect on C2 particles in winter. The potential source contribution function (PSCF) analysis indicated that local sources from the eastern, southeastern, and southern regions of Sichuan Province dominated the C2 particles in summer, whereas the contribution from the long-distance transport of aerosols originating outside Sichuan Province was significantly enhanced in winter. These findings will help us to understand the formation of secondary organic aerosols in the atmosphere over the Sichuan Basin. Seasonal differences Elsevier Potential source contribution function Elsevier Oxalic acid-containing particles Elsevier Formation mechanisms Elsevier Zhang, Junke oth Luo, Bin oth Luo, Jinqi oth Zhang, Wei oth Rao, Zhihan oth Enthalten in Elsevier Science Nassar, M.K. ELSEVIER The internal pudendal artery turnover (IPAT) flap: A new, simple and reliable technique for perineal reconstruction 2021 Amsterdam [u.a.] (DE-627)ELV00656139X volume:198 year:2019 day:1 month:02 pages:133-141 extent:9 https://doi.org/10.1016/j.atmosenv.2018.10.050 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.65 Chirurgie VZ AR 198 2019 1 0201 133-141 9 |
| allfieldsGer |
10.1016/j.atmosenv.2018.10.050 doi GBV00000000000454.pica (DE-627)ELV045189188 (ELSEVIER)S1352-2310(18)30748-9 DE-627 ger DE-627 rakwb eng 610 VZ 44.65 bkl Huang, Xiaojuan verfasserin aut Characterization of oxalic acid-containing particles in summer and winter seasons in Chengdu, China 2019transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Oxalic acid is the most abundant dicarboxylic acid in the atmosphere, but the processes involved in its formation in ambient aerosols are still uncertainty. We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles in ambient aerosols in Chengdu during summer and winter seasons. C2 particles accounted for 2.9 and 0.7% of the total amount of fine particles detected in summer and winter, respectively. The C2 particles in each season were classified as nine different types of particle with significant seasonal differences in their contribution to total C2 particles. The oxalic acid-sulfate (C2-SO4) particles and particles related to biomass burning (i.e., oxalic acid-organic nitrogen (C2-CN) and oxalic acid-elemental carbon (C2-EC)) represented 78% of the total C2 particles in summer, whereas the contributions of oxalic acid-dust (C2-D), oxalic acid-sulfate and nitrate (C2-SN), and oxalic acid-nitrate (C2-NO3) particles clearly increased in winter. Although the peak diameter of the average size distribution of total C2 particles was larger in winter than in summer, there was no significant seasonal difference in the number fraction of the size-resolved particles for each type of particle. The peak concentration of total C2 particle in summer occurred in the afternoon, but there was no obvious diurnal variation in winter. We concluded that local photochemical oxidation in the daytime favored the production of C2 particles in summer, whereas in-cloud processing with subsequent long-distance transport had an important effect on C2 particles in winter. The potential source contribution function (PSCF) analysis indicated that local sources from the eastern, southeastern, and southern regions of Sichuan Province dominated the C2 particles in summer, whereas the contribution from the long-distance transport of aerosols originating outside Sichuan Province was significantly enhanced in winter. These findings will help us to understand the formation of secondary organic aerosols in the atmosphere over the Sichuan Basin. Oxalic acid is the most abundant dicarboxylic acid in the atmosphere, but the processes involved in its formation in ambient aerosols are still uncertainty. We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles in ambient aerosols in Chengdu during summer and winter seasons. C2 particles accounted for 2.9 and 0.7% of the total amount of fine particles detected in summer and winter, respectively. The C2 particles in each season were classified as nine different types of particle with significant seasonal differences in their contribution to total C2 particles. The oxalic acid-sulfate (C2-SO4) particles and particles related to biomass burning (i.e., oxalic acid-organic nitrogen (C2-CN) and oxalic acid-elemental carbon (C2-EC)) represented 78% of the total C2 particles in summer, whereas the contributions of oxalic acid-dust (C2-D), oxalic acid-sulfate and nitrate (C2-SN), and oxalic acid-nitrate (C2-NO3) particles clearly increased in winter. Although the peak diameter of the average size distribution of total C2 particles was larger in winter than in summer, there was no significant seasonal difference in the number fraction of the size-resolved particles for each type of particle. The peak concentration of total C2 particle in summer occurred in the afternoon, but there was no obvious diurnal variation in winter. We concluded that local photochemical oxidation in the daytime favored the production of C2 particles in summer, whereas in-cloud processing with subsequent long-distance transport had an important effect on C2 particles in winter. The potential source contribution function (PSCF) analysis indicated that local sources from the eastern, southeastern, and southern regions of Sichuan Province dominated the C2 particles in summer, whereas the contribution from the long-distance transport of aerosols originating outside Sichuan Province was significantly enhanced in winter. These findings will help us to understand the formation of secondary organic aerosols in the atmosphere over the Sichuan Basin. Seasonal differences Elsevier Potential source contribution function Elsevier Oxalic acid-containing particles Elsevier Formation mechanisms Elsevier Zhang, Junke oth Luo, Bin oth Luo, Jinqi oth Zhang, Wei oth Rao, Zhihan oth Enthalten in Elsevier Science Nassar, M.K. ELSEVIER The internal pudendal artery turnover (IPAT) flap: A new, simple and reliable technique for perineal reconstruction 2021 Amsterdam [u.a.] (DE-627)ELV00656139X volume:198 year:2019 day:1 month:02 pages:133-141 extent:9 https://doi.org/10.1016/j.atmosenv.2018.10.050 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.65 Chirurgie VZ AR 198 2019 1 0201 133-141 9 |
| allfieldsSound |
10.1016/j.atmosenv.2018.10.050 doi GBV00000000000454.pica (DE-627)ELV045189188 (ELSEVIER)S1352-2310(18)30748-9 DE-627 ger DE-627 rakwb eng 610 VZ 44.65 bkl Huang, Xiaojuan verfasserin aut Characterization of oxalic acid-containing particles in summer and winter seasons in Chengdu, China 2019transfer abstract 9 nicht spezifiziert zzz rdacontent nicht spezifiziert z rdamedia nicht spezifiziert zu rdacarrier Oxalic acid is the most abundant dicarboxylic acid in the atmosphere, but the processes involved in its formation in ambient aerosols are still uncertainty. We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles in ambient aerosols in Chengdu during summer and winter seasons. C2 particles accounted for 2.9 and 0.7% of the total amount of fine particles detected in summer and winter, respectively. The C2 particles in each season were classified as nine different types of particle with significant seasonal differences in their contribution to total C2 particles. The oxalic acid-sulfate (C2-SO4) particles and particles related to biomass burning (i.e., oxalic acid-organic nitrogen (C2-CN) and oxalic acid-elemental carbon (C2-EC)) represented 78% of the total C2 particles in summer, whereas the contributions of oxalic acid-dust (C2-D), oxalic acid-sulfate and nitrate (C2-SN), and oxalic acid-nitrate (C2-NO3) particles clearly increased in winter. Although the peak diameter of the average size distribution of total C2 particles was larger in winter than in summer, there was no significant seasonal difference in the number fraction of the size-resolved particles for each type of particle. The peak concentration of total C2 particle in summer occurred in the afternoon, but there was no obvious diurnal variation in winter. We concluded that local photochemical oxidation in the daytime favored the production of C2 particles in summer, whereas in-cloud processing with subsequent long-distance transport had an important effect on C2 particles in winter. The potential source contribution function (PSCF) analysis indicated that local sources from the eastern, southeastern, and southern regions of Sichuan Province dominated the C2 particles in summer, whereas the contribution from the long-distance transport of aerosols originating outside Sichuan Province was significantly enhanced in winter. These findings will help us to understand the formation of secondary organic aerosols in the atmosphere over the Sichuan Basin. Oxalic acid is the most abundant dicarboxylic acid in the atmosphere, but the processes involved in its formation in ambient aerosols are still uncertainty. We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles in ambient aerosols in Chengdu during summer and winter seasons. C2 particles accounted for 2.9 and 0.7% of the total amount of fine particles detected in summer and winter, respectively. The C2 particles in each season were classified as nine different types of particle with significant seasonal differences in their contribution to total C2 particles. The oxalic acid-sulfate (C2-SO4) particles and particles related to biomass burning (i.e., oxalic acid-organic nitrogen (C2-CN) and oxalic acid-elemental carbon (C2-EC)) represented 78% of the total C2 particles in summer, whereas the contributions of oxalic acid-dust (C2-D), oxalic acid-sulfate and nitrate (C2-SN), and oxalic acid-nitrate (C2-NO3) particles clearly increased in winter. Although the peak diameter of the average size distribution of total C2 particles was larger in winter than in summer, there was no significant seasonal difference in the number fraction of the size-resolved particles for each type of particle. The peak concentration of total C2 particle in summer occurred in the afternoon, but there was no obvious diurnal variation in winter. We concluded that local photochemical oxidation in the daytime favored the production of C2 particles in summer, whereas in-cloud processing with subsequent long-distance transport had an important effect on C2 particles in winter. The potential source contribution function (PSCF) analysis indicated that local sources from the eastern, southeastern, and southern regions of Sichuan Province dominated the C2 particles in summer, whereas the contribution from the long-distance transport of aerosols originating outside Sichuan Province was significantly enhanced in winter. These findings will help us to understand the formation of secondary organic aerosols in the atmosphere over the Sichuan Basin. Seasonal differences Elsevier Potential source contribution function Elsevier Oxalic acid-containing particles Elsevier Formation mechanisms Elsevier Zhang, Junke oth Luo, Bin oth Luo, Jinqi oth Zhang, Wei oth Rao, Zhihan oth Enthalten in Elsevier Science Nassar, M.K. ELSEVIER The internal pudendal artery turnover (IPAT) flap: A new, simple and reliable technique for perineal reconstruction 2021 Amsterdam [u.a.] (DE-627)ELV00656139X volume:198 year:2019 day:1 month:02 pages:133-141 extent:9 https://doi.org/10.1016/j.atmosenv.2018.10.050 Volltext GBV_USEFLAG_U GBV_ELV SYSFLAG_U SSG-OLC-PHA 44.65 Chirurgie VZ AR 198 2019 1 0201 133-141 9 |
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Characterization of oxalic acid-containing particles in summer and winter seasons in Chengdu, China |
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Oxalic acid is the most abundant dicarboxylic acid in the atmosphere, but the processes involved in its formation in ambient aerosols are still uncertainty. We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles in ambient aerosols in Chengdu during summer and winter seasons. C2 particles accounted for 2.9 and 0.7% of the total amount of fine particles detected in summer and winter, respectively. The C2 particles in each season were classified as nine different types of particle with significant seasonal differences in their contribution to total C2 particles. The oxalic acid-sulfate (C2-SO4) particles and particles related to biomass burning (i.e., oxalic acid-organic nitrogen (C2-CN) and oxalic acid-elemental carbon (C2-EC)) represented 78% of the total C2 particles in summer, whereas the contributions of oxalic acid-dust (C2-D), oxalic acid-sulfate and nitrate (C2-SN), and oxalic acid-nitrate (C2-NO3) particles clearly increased in winter. Although the peak diameter of the average size distribution of total C2 particles was larger in winter than in summer, there was no significant seasonal difference in the number fraction of the size-resolved particles for each type of particle. The peak concentration of total C2 particle in summer occurred in the afternoon, but there was no obvious diurnal variation in winter. We concluded that local photochemical oxidation in the daytime favored the production of C2 particles in summer, whereas in-cloud processing with subsequent long-distance transport had an important effect on C2 particles in winter. The potential source contribution function (PSCF) analysis indicated that local sources from the eastern, southeastern, and southern regions of Sichuan Province dominated the C2 particles in summer, whereas the contribution from the long-distance transport of aerosols originating outside Sichuan Province was significantly enhanced in winter. These findings will help us to understand the formation of secondary organic aerosols in the atmosphere over the Sichuan Basin. |
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Oxalic acid is the most abundant dicarboxylic acid in the atmosphere, but the processes involved in its formation in ambient aerosols are still uncertainty. We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles in ambient aerosols in Chengdu during summer and winter seasons. C2 particles accounted for 2.9 and 0.7% of the total amount of fine particles detected in summer and winter, respectively. The C2 particles in each season were classified as nine different types of particle with significant seasonal differences in their contribution to total C2 particles. The oxalic acid-sulfate (C2-SO4) particles and particles related to biomass burning (i.e., oxalic acid-organic nitrogen (C2-CN) and oxalic acid-elemental carbon (C2-EC)) represented 78% of the total C2 particles in summer, whereas the contributions of oxalic acid-dust (C2-D), oxalic acid-sulfate and nitrate (C2-SN), and oxalic acid-nitrate (C2-NO3) particles clearly increased in winter. Although the peak diameter of the average size distribution of total C2 particles was larger in winter than in summer, there was no significant seasonal difference in the number fraction of the size-resolved particles for each type of particle. The peak concentration of total C2 particle in summer occurred in the afternoon, but there was no obvious diurnal variation in winter. We concluded that local photochemical oxidation in the daytime favored the production of C2 particles in summer, whereas in-cloud processing with subsequent long-distance transport had an important effect on C2 particles in winter. The potential source contribution function (PSCF) analysis indicated that local sources from the eastern, southeastern, and southern regions of Sichuan Province dominated the C2 particles in summer, whereas the contribution from the long-distance transport of aerosols originating outside Sichuan Province was significantly enhanced in winter. These findings will help us to understand the formation of secondary organic aerosols in the atmosphere over the Sichuan Basin. |
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Oxalic acid is the most abundant dicarboxylic acid in the atmosphere, but the processes involved in its formation in ambient aerosols are still uncertainty. We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles in ambient aerosols in Chengdu during summer and winter seasons. C2 particles accounted for 2.9 and 0.7% of the total amount of fine particles detected in summer and winter, respectively. The C2 particles in each season were classified as nine different types of particle with significant seasonal differences in their contribution to total C2 particles. The oxalic acid-sulfate (C2-SO4) particles and particles related to biomass burning (i.e., oxalic acid-organic nitrogen (C2-CN) and oxalic acid-elemental carbon (C2-EC)) represented 78% of the total C2 particles in summer, whereas the contributions of oxalic acid-dust (C2-D), oxalic acid-sulfate and nitrate (C2-SN), and oxalic acid-nitrate (C2-NO3) particles clearly increased in winter. Although the peak diameter of the average size distribution of total C2 particles was larger in winter than in summer, there was no significant seasonal difference in the number fraction of the size-resolved particles for each type of particle. The peak concentration of total C2 particle in summer occurred in the afternoon, but there was no obvious diurnal variation in winter. We concluded that local photochemical oxidation in the daytime favored the production of C2 particles in summer, whereas in-cloud processing with subsequent long-distance transport had an important effect on C2 particles in winter. The potential source contribution function (PSCF) analysis indicated that local sources from the eastern, southeastern, and southern regions of Sichuan Province dominated the C2 particles in summer, whereas the contribution from the long-distance transport of aerosols originating outside Sichuan Province was significantly enhanced in winter. These findings will help us to understand the formation of secondary organic aerosols in the atmosphere over the Sichuan Basin. |
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We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles in ambient aerosols in Chengdu during summer and winter seasons. C2 particles accounted for 2.9 and 0.7% of the total amount of fine particles detected in summer and winter, respectively. The C2 particles in each season were classified as nine different types of particle with significant seasonal differences in their contribution to total C2 particles. The oxalic acid-sulfate (C2-SO4) particles and particles related to biomass burning (i.e., oxalic acid-organic nitrogen (C2-CN) and oxalic acid-elemental carbon (C2-EC)) represented 78% of the total C2 particles in summer, whereas the contributions of oxalic acid-dust (C2-D), oxalic acid-sulfate and nitrate (C2-SN), and oxalic acid-nitrate (C2-NO3) particles clearly increased in winter. Although the peak diameter of the average size distribution of total C2 particles was larger in winter than in summer, there was no significant seasonal difference in the number fraction of the size-resolved particles for each type of particle. The peak concentration of total C2 particle in summer occurred in the afternoon, but there was no obvious diurnal variation in winter. We concluded that local photochemical oxidation in the daytime favored the production of C2 particles in summer, whereas in-cloud processing with subsequent long-distance transport had an important effect on C2 particles in winter. The potential source contribution function (PSCF) analysis indicated that local sources from the eastern, southeastern, and southern regions of Sichuan Province dominated the C2 particles in summer, whereas the contribution from the long-distance transport of aerosols originating outside Sichuan Province was significantly enhanced in winter. These findings will help us to understand the formation of secondary organic aerosols in the atmosphere over the Sichuan Basin.</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">Oxalic acid is the most abundant dicarboxylic acid in the atmosphere, but the processes involved in its formation in ambient aerosols are still uncertainty. We used single particle aerosol mass spectrometer to investigate the sources and formation mechanisms of oxalic acid-containing (C2) particles in ambient aerosols in Chengdu during summer and winter seasons. C2 particles accounted for 2.9 and 0.7% of the total amount of fine particles detected in summer and winter, respectively. The C2 particles in each season were classified as nine different types of particle with significant seasonal differences in their contribution to total C2 particles. The oxalic acid-sulfate (C2-SO4) particles and particles related to biomass burning (i.e., oxalic acid-organic nitrogen (C2-CN) and oxalic acid-elemental carbon (C2-EC)) represented 78% of the total C2 particles in summer, whereas the contributions of oxalic acid-dust (C2-D), oxalic acid-sulfate and nitrate (C2-SN), and oxalic acid-nitrate (C2-NO3) particles clearly increased in winter. Although the peak diameter of the average size distribution of total C2 particles was larger in winter than in summer, there was no significant seasonal difference in the number fraction of the size-resolved particles for each type of particle. The peak concentration of total C2 particle in summer occurred in the afternoon, but there was no obvious diurnal variation in winter. We concluded that local photochemical oxidation in the daytime favored the production of C2 particles in summer, whereas in-cloud processing with subsequent long-distance transport had an important effect on C2 particles in winter. The potential source contribution function (PSCF) analysis indicated that local sources from the eastern, southeastern, and southern regions of Sichuan Province dominated the C2 particles in summer, whereas the contribution from the long-distance transport of aerosols originating outside Sichuan Province was significantly enhanced in winter. These findings will help us to understand the formation of secondary organic aerosols in the atmosphere over the Sichuan Basin.</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Seasonal differences</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Potential source contribution function</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Oxalic acid-containing particles</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="650" ind1=" " ind2="7"><subfield code="a">Formation mechanisms</subfield><subfield code="2">Elsevier</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zhang, Junke</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Luo, Bin</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Luo, Jinqi</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Zhang, Wei</subfield><subfield code="4">oth</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Rao, Zhihan</subfield><subfield code="4">oth</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="n">Elsevier Science</subfield><subfield code="a">Nassar, M.K. ELSEVIER</subfield><subfield code="t">The internal pudendal artery turnover (IPAT) flap: A new, simple and reliable technique for perineal reconstruction</subfield><subfield code="d">2021</subfield><subfield code="g">Amsterdam [u.a.]</subfield><subfield code="w">(DE-627)ELV00656139X</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:198</subfield><subfield code="g">year:2019</subfield><subfield code="g">day:1</subfield><subfield code="g">month:02</subfield><subfield code="g">pages:133-141</subfield><subfield code="g">extent:9</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://doi.org/10.1016/j.atmosenv.2018.10.050</subfield><subfield code="3">Volltext</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_USEFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_ELV</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SYSFLAG_U</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">SSG-OLC-PHA</subfield></datafield><datafield tag="936" ind1="b" ind2="k"><subfield code="a">44.65</subfield><subfield code="j">Chirurgie</subfield><subfield code="q">VZ</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">198</subfield><subfield code="j">2019</subfield><subfield code="b">1</subfield><subfield code="c">0201</subfield><subfield code="h">133-141</subfield><subfield code="g">9</subfield></datafield></record></collection>
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