FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4309729087> ?p ?o ?g. }

• W4309729087 endingPage "14904" @default.
• W4309729087 startingPage "14893" @default.
• W4309729087 abstract "Abstract. Brown carbon (BrC) constitutes a large fraction of organic carbon and exhibits strong light absorption properties, thus affecting the global radiation budget. In this study, we investigated the light absorption properties, chemical functional bonds, and sources of BrC in six megacities in China, namely Beijing, Harbin, Xi'an, Chengdu, Guangzhou, and Wuhan. The average values of the BrC light absorption coefficient and the mass absorption efficiency at 365 nm in northern cities were higher than those in southern cities by 2.5 and 1.8 times, respectively, demonstrating the abundance of BrC present in northern China's megacities. Fourier transform infrared (FT-IR) spectra revealed sharp and intense peaks at 1640, 1458–1385, and 1090–1030 cm−1, which were ascribed to aromatic phenols, confirming the contribution of primary emission sources (e.g., biomass burning and coal combustion) to BrC. In addition, we noted peaks at 860, 1280–1260, and 1640 cm−1, which were attributed to organonitrate and oxygenated phenolic groups, indicating that secondary BrC also existed in the six megacities. Positive matrix factorization (PMF) coupled with multilayer perceptron (MLP) neural network analysis was used to apportion the sources of BrC light absorption. The results showed that primary emissions (e.g., biomass burning, tailpipe emissions, and coal combustion) made a major contribution to BrC in the six megacities. However, secondary formation processes made a greater contribution to light absorption in the southern cities (17.9 %–21.2 %) than in the northern cities (2.1 %–10.2 %). These results can provide a basis for the more effective control of BrC to reduce its impacts on regional climates and human health." @default.
• W4309729087 created "2022-11-29" @default.
• W4309729087 creator A5000320455 @default.
• W4309729087 creator A5000457151 @default.
• W4309729087 creator A5011287540 @default.
• W4309729087 creator A5015128530 @default.
• W4309729087 creator A5033510051 @default.
• W4309729087 creator A5052441498 @default.
• W4309729087 creator A5067971967 @default.
• W4309729087 creator A5083509837 @default.
• W4309729087 creator A5088987799 @default.
• W4309729087 date "2022-11-23" @default.
• W4309729087 modified "2023-09-26" @default.
• W4309729087 title "Winter brown carbon over six of China's megacities: light absorption, molecular characterization, and improved source apportionment revealed by multilayer perceptron neural network" @default.
• W4309729087 cites W1515324773 @default.
• W4309729087 cites W1549518695 @default.
• W4309729087 cites W1907316899 @default.
• W4309729087 cites W1982624714 @default.
• W4309729087 cites W1988469779 @default.
• W4309729087 cites W1995167560 @default.
• W4309729087 cites W2021852624 @default.
• W4309729087 cites W2026570524 @default.
• W4309729087 cites W2038664407 @default.
• W4309729087 cites W2039020884 @default.
• W4309729087 cites W2039059078 @default.
• W4309729087 cites W2061916782 @default.
• W4309729087 cites W2062684589 @default.
• W4309729087 cites W2066828854 @default.
• W4309729087 cites W2069679252 @default.
• W4309729087 cites W2082289208 @default.
• W4309729087 cites W2110309989 @default.
• W4309729087 cites W2110507956 @default.
• W4309729087 cites W2123839416 @default.
• W4309729087 cites W2126801413 @default.
• W4309729087 cites W2142380122 @default.
• W4309729087 cites W2150369513 @default.
• W4309729087 cites W2164700775 @default.
• W4309729087 cites W2167250867 @default.
• W4309729087 cites W2198926240 @default.
• W4309729087 cites W2284923239 @default.
• W4309729087 cites W2316630021 @default.
• W4309729087 cites W2335248124 @default.
• W4309729087 cites W2404916334 @default.
• W4309729087 cites W2464394688 @default.
• W4309729087 cites W2494264444 @default.
• W4309729087 cites W2510035184 @default.
• W4309729087 cites W2512050742 @default.
• W4309729087 cites W2530468375 @default.
• W4309729087 cites W2530921671 @default.
• W4309729087 cites W2551115100 @default.
• W4309729087 cites W2594085852 @default.
• W4309729087 cites W2613658816 @default.
• W4309729087 cites W2739974369 @default.
• W4309729087 cites W2776229244 @default.
• W4309729087 cites W2790797229 @default.
• W4309729087 cites W2800117066 @default.
• W4309729087 cites W2803934684 @default.
• W4309729087 cites W2805509125 @default.
• W4309729087 cites W2807406752 @default.
• W4309729087 cites W2888370001 @default.
• W4309729087 cites W2889480472 @default.
• W4309729087 cites W2901948249 @default.
• W4309729087 cites W2904757487 @default.
• W4309729087 cites W2948609299 @default.
• W4309729087 cites W2965009238 @default.
• W4309729087 cites W2969447135 @default.
• W4309729087 cites W2993013002 @default.
• W4309729087 cites W2993279249 @default.
• W4309729087 cites W3007836745 @default.
• W4309729087 cites W3008268261 @default.
• W4309729087 cites W3010937800 @default.
• W4309729087 cites W3034337705 @default.
• W4309729087 cites W3058577493 @default.
• W4309729087 cites W3090305501 @default.
• W4309729087 cites W3119793492 @default.
• W4309729087 cites W3127271977 @default.
• W4309729087 cites W3129866914 @default.
• W4309729087 cites W3130471031 @default.
• W4309729087 cites W3132165344 @default.
• W4309729087 cites W3149183780 @default.
• W4309729087 cites W3185605490 @default.
• W4309729087 cites W3209977617 @default.
• W4309729087 cites W3210428182 @default.
• W4309729087 cites W4200506082 @default.
• W4309729087 cites W4207025170 @default.
• W4309729087 cites W4242841440 @default.
• W4309729087 cites W4294751351 @default.
• W4309729087 cites W861736444 @default.
• W4309729087 doi "https://doi.org/10.5194/acp-22-14893-2022" @default.
• W4309729087 hasPublicationYear "2022" @default.
• W4309729087 type Work @default.
• W4309729087 citedByCount "4" @default.
• W4309729087 countsByYear W43097290872023 @default.
• W4309729087 crossrefType "journal-article" @default.
• W4309729087 hasAuthorship W4309729087A5000320455 @default.
• W4309729087 hasAuthorship W4309729087A5000457151 @default.
• W4309729087 hasAuthorship W4309729087A5011287540 @default.
• W4309729087 hasAuthorship W4309729087A5015128530 @default.

• next