Matches in SemOpenAlex for { <https://semopenalex.org/work/W2172034103> ?p ?o ?g. }
- W2172034103 endingPage "9837" @default.
- W2172034103 startingPage "9825" @default.
- W2172034103 abstract "Abstract. As a part of the CAREBeijing-2008 campaign, observations of O3, oxides of nitrogen (NOx and NOy), CO, and hydrocarbons (NMHCs) were carried out at the air quality observatory of the Peking University in Beijing, China during August 2008, including the period of the 29th Summer Olympic Games. The measurements were compared with those of the CAREBeijing-2006 campaign to evaluate the effectiveness of the air pollution control measures, which were conducted for improving the air quality in Beijing during the Olympics. The results indicate that significant reduction in the emissions of primary air pollutants had been achieved; the monthly averaged mixing ratios of NOx, NOy, CO, and NMHCs decreased by 42.2, 56.5, 27.8, and 49.7 %, respectively. In contrast to the primary pollutants, the averaged mixing ratio of O3 increased by 42.2 %. Nevertheless, it was revealed that the ambient levels of total oxidant (Ox = O3+NO2+1.5 NOz) and NOz were reduced by 21.3 and 77.4 %, respectively. The contradictions between O3 and Ox were further examined in two case studies. Ozone production rates of 30–70 ppbv h−1 and OPEx of ~8 mole mole−1 were observed on a clear-sky day in spite of the reduced levels of precursors. In that case, it was found that the mixing ratio of O3 increased with the increasing NO2/NO ratio, whereas the NOz mixing ratio leveled off when NO2/NO>8. Consequently, the ratio of O3 to NOz increased to above 10, indicating the shift from VOC-sensitive regime to NOx-sensitive regime. However, in the other case, it was found that the O3 production was inhibited significantly due to substantial reduction in the NMHCs. According to the observations, it was suggested that the O3 and/or Ox production rates in Beijing should have been reduced as a result of the reduction in the emissions of precursors during the Olympic period. However, the nighttime O3 levels increased due to a decline in the NO-O3 titration, and the midday O3 peak levels were elevated because of the shift in the photochemical regime and the inhibition of NOz formation." @default.
- W2172034103 created "2016-06-24" @default.
- W2172034103 creator A5004996603 @default.
- W2172034103 creator A5057840420 @default.
- W2172034103 creator A5062517358 @default.
- W2172034103 creator A5078818841 @default.
- W2172034103 creator A5080041548 @default.
- W2172034103 creator A5086722262 @default.
- W2172034103 date "2011-09-23" @default.
- W2172034103 modified "2023-09-30" @default.
- W2172034103 title "Photochemical production of ozone in Beijing during the 2008 Olympic Games" @default.
- W2172034103 cites W1504598141 @default.
- W2172034103 cites W1968795162 @default.
- W2172034103 cites W1980569294 @default.
- W2172034103 cites W1992544996 @default.
- W2172034103 cites W2000724717 @default.
- W2172034103 cites W2000778751 @default.
- W2172034103 cites W2020147105 @default.
- W2172034103 cites W2029757369 @default.
- W2172034103 cites W2041499204 @default.
- W2172034103 cites W2045848467 @default.
- W2172034103 cites W2055505948 @default.
- W2172034103 cites W2057305337 @default.
- W2172034103 cites W2062306742 @default.
- W2172034103 cites W2071645073 @default.
- W2172034103 cites W2085109789 @default.
- W2172034103 cites W2092262061 @default.
- W2172034103 cites W2098081069 @default.
- W2172034103 cites W2104500845 @default.
- W2172034103 cites W2104971759 @default.
- W2172034103 cites W2114634677 @default.
- W2172034103 cites W2123142274 @default.
- W2172034103 cites W2133174034 @default.
- W2172034103 cites W2159488128 @default.
- W2172034103 cites W2159660056 @default.
- W2172034103 cites W2160885731 @default.
- W2172034103 cites W2167300931 @default.
- W2172034103 doi "https://doi.org/10.5194/acp-11-9825-2011" @default.
- W2172034103 hasPublicationYear "2011" @default.
- W2172034103 type Work @default.
- W2172034103 sameAs 2172034103 @default.
- W2172034103 citedByCount "52" @default.
- W2172034103 countsByYear W21720341032012 @default.
- W2172034103 countsByYear W21720341032013 @default.
- W2172034103 countsByYear W21720341032014 @default.
- W2172034103 countsByYear W21720341032015 @default.
- W2172034103 countsByYear W21720341032016 @default.
- W2172034103 countsByYear W21720341032017 @default.
- W2172034103 countsByYear W21720341032018 @default.
- W2172034103 countsByYear W21720341032019 @default.
- W2172034103 countsByYear W21720341032020 @default.
- W2172034103 countsByYear W21720341032021 @default.
- W2172034103 countsByYear W21720341032022 @default.
- W2172034103 countsByYear W21720341032023 @default.
- W2172034103 crossrefType "journal-article" @default.
- W2172034103 hasAuthorship W2172034103A5004996603 @default.
- W2172034103 hasAuthorship W2172034103A5057840420 @default.
- W2172034103 hasAuthorship W2172034103A5062517358 @default.
- W2172034103 hasAuthorship W2172034103A5078818841 @default.
- W2172034103 hasAuthorship W2172034103A5080041548 @default.
- W2172034103 hasAuthorship W2172034103A5086722262 @default.
- W2172034103 hasBestOaLocation W21720341031 @default.
- W2172034103 hasConcept C105923489 @default.
- W2172034103 hasConcept C116119225 @default.
- W2172034103 hasConcept C121332964 @default.
- W2172034103 hasConcept C126314574 @default.
- W2172034103 hasConcept C153294291 @default.
- W2172034103 hasConcept C166957645 @default.
- W2172034103 hasConcept C178790620 @default.
- W2172034103 hasConcept C18459110 @default.
- W2172034103 hasConcept C185592680 @default.
- W2172034103 hasConcept C191935318 @default.
- W2172034103 hasConcept C203032635 @default.
- W2172034103 hasConcept C205649164 @default.
- W2172034103 hasConcept C2778304055 @default.
- W2172034103 hasConcept C39432304 @default.
- W2172034103 hasConcept C508106653 @default.
- W2172034103 hasConcept C537208039 @default.
- W2172034103 hasConcept C82685317 @default.
- W2172034103 hasConcept C91586092 @default.
- W2172034103 hasConceptScore W2172034103C105923489 @default.
- W2172034103 hasConceptScore W2172034103C116119225 @default.
- W2172034103 hasConceptScore W2172034103C121332964 @default.
- W2172034103 hasConceptScore W2172034103C126314574 @default.
- W2172034103 hasConceptScore W2172034103C153294291 @default.
- W2172034103 hasConceptScore W2172034103C166957645 @default.
- W2172034103 hasConceptScore W2172034103C178790620 @default.
- W2172034103 hasConceptScore W2172034103C18459110 @default.
- W2172034103 hasConceptScore W2172034103C185592680 @default.
- W2172034103 hasConceptScore W2172034103C191935318 @default.
- W2172034103 hasConceptScore W2172034103C203032635 @default.
- W2172034103 hasConceptScore W2172034103C205649164 @default.
- W2172034103 hasConceptScore W2172034103C2778304055 @default.
- W2172034103 hasConceptScore W2172034103C39432304 @default.
- W2172034103 hasConceptScore W2172034103C508106653 @default.
- W2172034103 hasConceptScore W2172034103C537208039 @default.
- W2172034103 hasConceptScore W2172034103C82685317 @default.
- W2172034103 hasConceptScore W2172034103C91586092 @default.