FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4211190003> ?p ?o ?g. }

• W4211190003 abstract "Abstract. Measurements of ambient OH and HO2 radicals were performed by laser induced fluorescence (LIF) during CAREBeijing2006 (Campaigns of Air Quality Research in Beijing and Surrounding Region 2006) at the suburban site Yufa in the south of Beijing in summer 2006. On most days, local air chemistry was influenced by aged air pollution that was advected by a slow, almost stagnant wind from southern regions. Observed daily maxima of OH and HO2* were in the range of (4–17) × 106 cm−3 and (2–24) × 108 cm−3, respectively. During daytime, OH reactivities were generally high (10–30 s−1) and mainly contributed by VOCs and their oxidation products. The comparison of modelled and measured HOx concentrations reveals a systematic underprediction of OH as a function of NO. A large discrepancy of a factor 2.6 is found at the lowest NO concentration encountered (0.1 ppb), whereas the discrepancy becomes insignificant above 1 ppb NO. This study extends similar observations from the Pearl-River Delta (PRD) in South China to a more urban environment. The OH discrepancy at Yufa can be resolved, if NO-independent additional OH recycling is assumed in the model. The postulated Leuven Isoprene Mechanism (LIM) has the potential to explain the gap between modelled and measured OH at Beijing taking into account conservative error estimates, but still lacks experimental confirmation. This and the hereby unresolved discrepancy at PRD suggest that other VOCs besides isoprene might be involved in the required, additional OH recycling. Fast primary production of ROx radicals up to 7 ppb h−1 was determined at Beijing which was dominated by the photolysis of O3, HONO, HCHO, and dicarbonyls. For a special case, 20 August, when the plume of Beijing city was encountered, a missing primary HOx source (≈ 3 ppb h−1) was determined under high NOx conditions similar to other urban areas like Mexico city. CAREBeijing2006 emphasizes the important role of OVOCs as a radical source and sink, and the need for further investigation of the chemical degradation of VOCs in order to better understand radical chemistry in VOC-rich air." @default.
• W4211190003 created "2022-02-13" @default.
• W4211190003 creator A5003987428 @default.
• W4211190003 creator A5006834382 @default.
• W4211190003 creator A5007156367 @default.
• W4211190003 creator A5007772091 @default.
• W4211190003 creator A5010993723 @default.
• W4211190003 creator A5017414856 @default.
• W4211190003 creator A5019396930 @default.
• W4211190003 creator A5020998607 @default.
• W4211190003 creator A5021112220 @default.
• W4211190003 creator A5024439862 @default.
• W4211190003 creator A5030686664 @default.
• W4211190003 creator A5045593621 @default.
• W4211190003 creator A5045617018 @default.
• W4211190003 creator A5054266485 @default.
• W4211190003 creator A5055818533 @default.
• W4211190003 creator A5057504165 @default.
• W4211190003 creator A5063605514 @default.
• W4211190003 creator A5064035375 @default.
• W4211190003 creator A5081630138 @default.
• W4211190003 date "2012-04-27" @default.
• W4211190003 modified "2023-10-16" @default.
• W4211190003 title "Missing OH source in a suburban environment near Beijing: observed and modelled OH and HO&lt;sub&gt;2&lt;/sub&gt; concentrations in summer 2006" @default.
• W4211190003 cites W1529898429 @default.
• W4211190003 cites W1941104376 @default.
• W4211190003 cites W1972598971 @default.
• W4211190003 cites W1973383986 @default.
• W4211190003 cites W1975181633 @default.
• W4211190003 cites W1976186159 @default.
• W4211190003 cites W1987426459 @default.
• W4211190003 cites W1987612450 @default.
• W4211190003 cites W1994727574 @default.
• W4211190003 cites W1997280005 @default.
• W4211190003 cites W1998914891 @default.
• W4211190003 cites W1999343554 @default.
• W4211190003 cites W2004211133 @default.
• W4211190003 cites W2007841777 @default.
• W4211190003 cites W2015735547 @default.
• W4211190003 cites W2020371960 @default.
• W4211190003 cites W2021577297 @default.
• W4211190003 cites W2028186311 @default.
• W4211190003 cites W2030552366 @default.
• W4211190003 cites W2031978365 @default.
• W4211190003 cites W2040450731 @default.
• W4211190003 cites W2040996425 @default.
• W4211190003 cites W2042562395 @default.
• W4211190003 cites W2044160173 @default.
• W4211190003 cites W2044578981 @default.
• W4211190003 cites W2044633117 @default.
• W4211190003 cites W2045255770 @default.
• W4211190003 cites W2045848467 @default.
• W4211190003 cites W2055869887 @default.
• W4211190003 cites W2069445396 @default.
• W4211190003 cites W2069912250 @default.
• W4211190003 cites W2074372499 @default.
• W4211190003 cites W2076338221 @default.
• W4211190003 cites W2080617190 @default.
• W4211190003 cites W2082035655 @default.
• W4211190003 cites W2083266426 @default.
• W4211190003 cites W2083441060 @default.
• W4211190003 cites W2084613065 @default.
• W4211190003 cites W2086604129 @default.
• W4211190003 cites W2087764785 @default.
• W4211190003 cites W2088718795 @default.
• W4211190003 cites W2091308375 @default.
• W4211190003 cites W2093621897 @default.
• W4211190003 cites W2095338969 @default.
• W4211190003 cites W2104971759 @default.
• W4211190003 cites W2108274885 @default.
• W4211190003 cites W2110356767 @default.
• W4211190003 cites W2115947688 @default.
• W4211190003 cites W2116507044 @default.
• W4211190003 cites W2120980103 @default.
• W4211190003 cites W2122381626 @default.
• W4211190003 cites W2122804368 @default.
• W4211190003 cites W2123948966 @default.
• W4211190003 cites W2124441789 @default.
• W4211190003 cites W2124610638 @default.
• W4211190003 cites W2125448651 @default.
• W4211190003 cites W2126139831 @default.
• W4211190003 cites W2126656937 @default.
• W4211190003 cites W2127188489 @default.
• W4211190003 cites W2132104902 @default.
• W4211190003 cites W2132276947 @default.
• W4211190003 cites W2132330981 @default.
• W4211190003 cites W2136263534 @default.
• W4211190003 cites W2136744437 @default.
• W4211190003 cites W2137029702 @default.
• W4211190003 cites W2137307502 @default.
• W4211190003 cites W2143807104 @default.
• W4211190003 cites W2144923407 @default.
• W4211190003 cites W2149457069 @default.
• W4211190003 cites W2151956104 @default.
• W4211190003 cites W2154568974 @default.
• W4211190003 cites W2154674123 @default.
• W4211190003 cites W2157459392 @default.
• W4211190003 cites W2158063935 @default.
• W4211190003 cites W2159342794 @default.
• W4211190003 cites W2160885731 @default.

• next