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Ofp ozone

Webb臭氧生成潜势(OFP, Ozone formation potential)是衡量大气VOCs对臭氧生成贡献的重要指标(李洁等, 2024), 本研究选择了最大增量反应活性法(MIR)对典型有机溶剂行业的臭氧 … Webb8 apr. 2024 · To further understand the effect of volatile organic compounds (VOCs) on ozone (O 3) formation in seasons when ozone (O 3) pollution occurs frequently, the variation in VOCs, chemical composition characteristics, and ozone formation potential (OFP) were studied, using high-resolution online monitoring data obtained in an urban …

Emission factor, relative ozone formation potential and …

WebbBasically, the Ozone depletion potential (ODP) is a measure of how much a chemical can cause damage to the ozone layer of a similar mass of trichlorofluoromethane (CFC-11). … Webb1 juni 2024 · This page provides information on compounds recognized as ozone-depleting substances (. ODS. ) under the Montreal Protocol. The ODS are split into two groups … alcro bets https://impressionsdd.com

Measurements and analysis of non-methane VOC (NMVOC) …

WebbThe ozone formation potential (OFP) results showed that alkenes, aromatics and oxygenated VOCs (OVOCs) were dominant contributors, together sharing 81.4% of total calculated OFPs. Ethene ranked the largest OFP contributor at all six sites. Webbwhere IR i is the incremental reactivity of species i; ∆[O 3] is the change in some ozone metric used to assess the impact of VOCs on air quality (e.g., the 1-hr peak or 8-hr … Webbdifferent ozone forming potential (OFP) according to Carter (1994, 2010) who developed a reactivity scale for the evaluation of relative impacts of different NMVOCs, based on the … alcro chai

Special Issue "Ozone Pollution in East Asia: Factors and Sources"

Category:Emission characteristics and ozone formation potentials of …

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Ofp ozone

成都市臭氧生成敏感性分析及控制策略的制定

WebbThe calculation of Photochemical Ozone Creation Potentials (POCP) is one method to rank the ability to produce ozone from individual VOC. The POCP values give a ranking of … Webb18 jan. 2024 · The role of BTEX for ozone formation potential (OFP) can be evaluated by applying the maximum incremental reactivity (MIR) scale as per the information provided by Carter ( 1994 ). The contribution toward OFP of the individual BTEX can be obtained using the following equation (Hoqu et al. 2008; Garg et al. 2024 ).

Ofp ozone

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http://www.hjkxyj.org.cn/en/article/doi/10.13198/j.issn.1001-6929.2024.02.09 Webb26 maj 2024 · The tropospheric ozone concentration in China has continually increased in recent years. Compared to 2024, the average concentrations of PM 2.5, PM 10, SO 2, …

Webb1 apr. 2024 · The results of the OFP calculation inferred that VOCs from industrial and vehicular emissions were found to be the dominant precursors for OFP, particularly the … Webb1 sep. 2024 · The OFPs have been widely used to quantify and predict the photochemical ozone formation reactivity of the VOCs ( Wang J. et al., 2013 ). It is important to assess …

Webb26 maj 2024 · The tropospheric ozone concentration in China has continually increased in recent years. Compared to 2024, the average concentrations of PM 2.5, PM 10, SO 2, NO 2, and CO in 337 major cities declined in 2024 by 0%, 1.6%, 15.4%, 0%, and 0%, respectively, while only ozone concentration increased by 6.5% (Ministry of Ecological … http://html.rhhz.net/hjkxxb/html/20240403004.htm

WebbTo evaluate the air quality using the gasoline vapor composition data, the ozone formation potential (OFP) was performed using the maximum incremental reactivity (MIR) with the …

http://html.rhhz.net/hjkxxb/html/20240610002.htm al crockaWebb16 juni 2024 · In this context, EFSA’s scientific views on the specific points raised during the commenting phase conducted with Member States and EFSA on the basic … alcro brilliantWebb7 aug. 2012 · In the present study we report levels, compositions and ozone formation potentials (OFP) of VOCs observed at a rural site in the central PRD region during … alcro finspackelWebb8 mars 2024 · In the study, VOCs characteristics and ozone generation potential (OFP) of ambient VOCs were analyzed, and source apportionment of VOCs were analyzed by … alcro duvaWebbThe ozone formation potential (OFP) is widely used to estimate the relative contribution of VOCs to O 3 formation. In the vast majority of studies, the measured value of VOC … alcro dammbindningWebbPrecisely, ODP of a given substance is defined as the ratio of global loss of ozone due to the given substance to the global loss of ozone due to CFC-11 of the same mass. ODP … alcro drivvedWebb21 okt. 2024 · The results showed that the average concentrations of TVOCs at CS and IS were 49.1 ± 14.4 and 28.4 ± 9.6 ppb, respectively, with higher levels in autumn compared to those in spring and summer. Alkene species contributed the largest to the OH radical loss rate (LOH) and ozone formation potential (OFP). alcro djupet