Research on ozone formation sensitivity based on observational methods: Development history, methodology, and application and prospects in China

Chu, Wanghui; Li, Hong; Ji, Yuanyuan; Zhang, Xin; Xue, Likun; Gao, Jian; An, Chao

doi:10.1016/j.jes.2023.02.052

Cited by 12 publications

(5 citation statements)

References 100 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…OBM based on the Master Chemical Mechanism (MCM v3.3.1; http://mcm.leeds.ac.uk/MCM/) was employed to estimate the effect of changes of what in O3 precursors (Liu et al, 2022). Detailed information about OBM can be viewed in previous studies (Chu et al, 2023;Ling et al, 2011). Briefly, OBM assumes a good mix of emitted pollutants and is independent of emission inventories and meteorological data, combined with atmospheric chemical mechanisms, simulates the O3 production rate and the corresponding O3 concentration at a given time (Kleinman, 2000;Qiao et al, 2023).…”

Section: Obmmentioning

confidence: 99%

“…Designing a reasonable and effective precursor emission control strategy is crucial to control the photochemical generation of O3 (Yang et al, 2021). The relationship between O3 and precursors is nonlinear (Chameides et al, 1992), and precursor emission reduction strategies need to be dynamically adjusted based on the actual sensitivity of O3 formation (Chu et al, 2023;Lin et al, 2005). The observation-based model (OBM) is a widely used tool to analyze O3-NOx-VOCs sensitivity (Zhang et al, 2008;Nelson et al, 2021;Cardelino and Chameides, 1995).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Characteristics and sources of VOCs and the O₃-NO_x-VOCs relationships in the central plain city, China

Zhang,

Li,

Yuan

et al. 2024

Preprint

View full text Add to dashboard Cite

Abstract. Volatile organic compounds (VOCs) are important precursors of ozone (O3) generation. Understanding the characteristics, and emission sources of VOCs, and the relationship between VOCs and O3 during O3 pollution are of great significance for O3 pollution control. This study investigated the characteristics, sources, and effects of VOCs on O3 formation in Zhengzhou, Henan Province from 1st to 30th June 2023, and provided recommendations for O3 emission reduction strategies. Two O3 pollution events occurred during the observation period. During the observation period, the concentration of Total VOCs (TVOCs) varied from 9.9 to 60.3 ppbv, with an average of 22.8 ± 8.3 ppbv. The average concentration of TVOCs in the two pollution events were higher than that on the clean days. Six major VOCs sources were identified by using the Positive Matrix Factorization model. Vehicular exhaust (28 %), solvent usage (27 %), and industrial production (22 %) were the main sources. An observation-based mode was applied to explore the O3-precursors relationship and observation-oriented O3 control strategies. The results of relative incremental reactivity (RIR) and empirical kinetics modeling approach showed that the O3 formation in Zhengzhou in June was in anthropogenic VOCs (AVOCs)-limited regimes. VOCs with the largest RIR values, while NOx had a negative RIR value. It was worth noting that the sensitivity of O3 generation to biogenic VOCs (BVOCs) was greater than that of AVOCs. From the perspective of the reduction effect, the reduction ratios of AVOCs/NOx should be no less than 3:1, which was conducive to the reduction of O3 formation.

show abstract

Section: Obmmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Characteristics and sources of VOCs and the O₃-NO_x-VOCs relationships in the central plain city, China

Zhang,

Li,

Yuan

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…10−12 Over the past few decades, various methods have been applied to evaluate the O 3 formation sensitivity, and these methods can be classified into emission-based methods (such as the Weather Research and Forecasting and Community Multiscale Air Quality (WRF−CMAQ) model) 6,11,13−19 and observation-based methods (including the observation-based box model OBM, 20−22 satellite remote sensing observation, 23,24 and photochemical indicator 25,26 ) based on various data sources. 27 Previous research on the sensitivity of O 3 −NOx−VOCs revealed that urban O 3 formation is generally in VOC-limited 11,28−31 regime. Conversely, NOx limited or transitional O 3 formation regime is dominant in the rural areas of eastern China.…”

Section: Introductionmentioning

confidence: 99%

“…O 3 formation sensitivity is nonlinearly dependent on precursor concentrations and is usually categorized into three photochemical regimes: NOx limited, VOC limited, and VOC/NOx transitional. − Over the past few decades, various methods have been applied to evaluate the O 3 formation sensitivity, and these methods can be classified into emission-based methods (such as the Weather Research and Forecasting and Community Multiscale Air Quality (WRF–CMAQ) model) ,,− and observation-based methods (including the observation-based box model OBM, − satellite remote sensing observation, , and photochemical indicator , ) based on various data sources . Previous research on the sensitivity of O 3 –NOx–VOCs revealed that urban O 3 formation is generally in VOC-limited ,− regime.…”

Section: Introductionmentioning

confidence: 99%

Evolution of Ozone Formation Sensitivity during a Persistent Regional Ozone Episode in Northeastern China and Its Implication for a Control Strategy

Zhang,

Gao,

Zhu

et al. 2023

Environ. Sci. Technol.

Self Cite

View full text Add to dashboard Cite

In recent years, the magnitude and frequency of regional ozone (O 3 ) episodes have increased in China. We combined ground-based measurements, observation-based model (OBM), and the Weather Research and Forecasting and Community Multiscale Air Quality (WRF−CMAQ) model to analyze a typical persistent O 3 episode that occurred across 88 cities in northeastern China during June 19−30, 2021. The meteorological conditions, particularly the wind convergence centers, played crucial roles in the evolution of O 3 pollution. Daily analysis of the O 3 formation sensitivity showed that O 3 formation was in the volatile organic compound (VOC)-limited or transitional regime at the onset of the pollution episode in 92% of the cities. Conversely, it tended to be or eventually became a NOxlimited regime as the episode progressed in the most polluted cities. Based on the emission-reduction scenario simulations, mitigation of the regional O 3 pollution was found to be most effective through a phased control strategy, namely, reduction of a high ratio of VOCs to NOx at the onset of the pollution and lower ratio during evolution of the O 3 episode. This study presents a new possibility for regional O 3 pollution abatement in China based on a reasonable combination of OBM and the WRF−CMAQ model.

show abstract

“…Liu and Shi (2021) reviewed the methodology studies on ozone-NO x -VOC sensitivity from the model perspective while highlighting the ozone-NO x -VOC coupling correlation would help to improve the model simulation performance. Chu et al (2024) depicted the development of ozone sensitivity research based on observational routines in China while pointing out the recent policy variation among NO x -and VOC-limited regimes and the insu cient ability to adapt strategies dynamically and to local conditions. Accordingly, assessing the ozoneprecursor relationship supports determining the contribution of NO x and VOC to ozone pollution, which would be of practical and methodological signi cance.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Heterogeneity of NOx-VOCs-Ozone Relationships in Chinese Cities: Systematic Assessment and Spatiotemporal Maps

Guan,

Xiao,

et al. 2023

Preprint

View full text Add to dashboard Cite

Ozone is a pollutant threatening the atmospheric environment and public health. Investigating the relationship and sensitivity between ozone level and its precursors, including nitrogen oxides (NOx) and volatile organic compounds (VOC), has been a significant basis and reference for pollution mitigation. Through mining the internal comparability between individual data and the entire dataset, this study develops indexes assessing the ozone-NOx-VOC relationship while performing a case study on Chinese cities from 2015 to 2020. From the results, (1) the ozone-precursor correlation in Chinese cities generally showed increase-decrease trends in the assessing period while significantly correlating cities aggregating in two eastern city groups. (2) Differentiation in NOx- and VOC-limited ozone production regimes between cities located on the left and right sides of the Hu Huanyong Line has gradually formed over the past several years. (3) To effectively and efficiently mitigate ozone pollution, reducing NOx emission on a large scale while preventing VOC emission in key urban agglomerations with relatively developed economies and aggregated populations is recommended. The ozone-NOx-VOC relationship is assessed based on the quantitative and individual evaluation of ozone-NOx and ozone-VOC correlation, providing a novel local-to-global perspective to understand the contribution of precursors to ozone pollution.

show abstract

Research on ozone formation sensitivity based on observational methods: Development history, methodology, and application and prospects in China

Cited by 12 publications

References 100 publications

Characteristics and sources of VOCs and the O₃-NO_x-VOCs relationships in the central plain city, China

Characteristics and sources of VOCs and the O₃-NO_x-VOCs relationships in the central plain city, China

Evolution of Ozone Formation Sensitivity during a Persistent Regional Ozone Episode in Northeastern China and Its Implication for a Control Strategy

Investigating the Heterogeneity of NOx-VOCs-Ozone Relationships in Chinese Cities: Systematic Assessment and Spatiotemporal Maps

Contact Info

Product

Resources

About

Research on ozone formation sensitivity based on observational methods: Development history, methodology, and application and prospects in China

Cited by 12 publications

References 100 publications

Characteristics and sources of VOCs and the O3-NOx-VOCs relationships in the central plain city, China

Characteristics and sources of VOCs and the O3-NOx-VOCs relationships in the central plain city, China

Evolution of Ozone Formation Sensitivity during a Persistent Regional Ozone Episode in Northeastern China and Its Implication for a Control Strategy

Investigating the Heterogeneity of NOx-VOCs-Ozone Relationships in Chinese Cities: Systematic Assessment and Spatiotemporal Maps

Contact Info

Product

Resources

About

Characteristics and sources of VOCs and the O₃-NO_x-VOCs relationships in the central plain city, China

Characteristics and sources of VOCs and the O₃-NO_x-VOCs relationships in the central plain city, China