Comment on acp-2022-801

Опубликована: Фев. 15, 2023

Abstract. Traditional animal dung fuel use is a prominent source of brown carbon (BrC) in the Tibetan Plateau (TPL) region. Changes burning conditions, types, and uses fuels areas can lead to considerable uncertainties about molecular absorption properties their radiative forcing influence on BrC. Here, constituents BrC’s chromophoric molecules emitted from residential heating cooking scenarios using were proposed ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry TPL region, China. Our results show that this study release abundant BrC emissions with substantial high when compared those observed bitumite. Particularly, linkage between was quantified by partial least squares regression. Among detected groups, above 70 % N-containing compounds (CHON CHONS) low-oxygen-containing unsaturated aromatic bonds 20.9–27.5 CHO measured combustion samples lies potential chromophores regions. Further, significantly enhanced contribution coefficient (Mb_abs) total Mb_abs (up 99.7 %) presence both CHON (N₂+N₄) distinctive characteristics long chains levels unsaturation. Interestingly, identified CHONS markers highly oxygenated double-bonds Mb_abs, but rarely produced under insufficient oxygen conditions at high-altitude plateau. Meanwhile, incomplete values integrated simple efficiency thus destroyed radiation balance over

Язык: Английский

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Reply on RC1

Опубликована: Апрель 26, 2023

Abstract. Traditional animal dung fuel use is a prominent source of brown carbon (BrC) in the Tibetan Plateau (TPL) region. Changes burning conditions, types, and uses fuels areas can lead to considerable uncertainties about molecular absorption properties their radiative forcing influence on BrC. Here, constituents BrC’s chromophoric molecules emitted from residential heating cooking scenarios using were proposed ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry TPL region, China. Our results show that this study release abundant BrC emissions with substantial high when compared those observed bitumite. Particularly, linkage between was quantified by partial least squares regression. Among detected groups, above 70 % N-containing compounds (CHON CHONS) low-oxygen-containing unsaturated aromatic bonds 20.9–27.5 CHO measured combustion samples lies potential chromophores regions. Further, significantly enhanced contribution coefficient (Mb_abs) total Mb_abs (up 99.7 %) presence both CHON (N₂+N₄) distinctive characteristics long chains levels unsaturation. Interestingly, identified CHONS markers highly oxygenated double-bonds Mb_abs, but rarely produced under insufficient oxygen conditions at high-altitude plateau. Meanwhile, incomplete values integrated simple efficiency thus destroyed radiation balance over

Язык: Английский

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Reply on RC2

Опубликована: Апрель 26, 2023

Abstract. Traditional animal dung fuel use is a prominent source of brown carbon (BrC) in the Tibetan Plateau (TPL) region. Changes burning conditions, types, and uses fuels areas can lead to considerable uncertainties about molecular absorption properties their radiative forcing influence on BrC. Here, constituents BrC’s chromophoric molecules emitted from residential heating cooking scenarios using were proposed ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry TPL region, China. Our results show that this study release abundant BrC emissions with substantial high when compared those observed bitumite. Particularly, linkage between was quantified by partial least squares regression. Among detected groups, above 70 % N-containing compounds (CHON CHONS) low-oxygen-containing unsaturated aromatic bonds 20.9–27.5 CHO measured combustion samples lies potential chromophores regions. Further, significantly enhanced contribution coefficient (Mb_abs) total Mb_abs (up 99.7 %) presence both CHON (N₂+N₄) distinctive characteristics long chains levels unsaturation. Interestingly, identified CHONS markers highly oxygenated double-bonds Mb_abs, but rarely produced under insufficient oxygen conditions at high-altitude plateau. Meanwhile, incomplete values integrated simple efficiency thus destroyed radiation balance over

Язык: Английский

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Agricultural Fires in Northeast China: Characteristics, Impacts, and Challenges

Springer eBooks, Год журнала: 2023, Номер unknown, С. 517 - 530

Опубликована: Янв. 1, 2023

Язык: Английский

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