Tropospheric Ozone Assessment Report, links to Global surface ozone datasets

Schultz, Martin; Bogucka, Magdalena; Spangl, Wolfgang; Gillett, R. W.; Xu, Xiangde; Kjeld, Peter Christian; Gilge, Stefan; Fiebig, Markus; Cooper, O. R.; Springston, Stephen; Nicodim, Florin; Simmonds, Peter; Eckhardt, Paul; Bonasoni, Paolo; Baumgardner, Darrel; Schröder, Sabine; Schwab, James J.; Fröhlich, Marina; Komala, Ninong; Hong, You-Deog; Galbally, Ian; Gadhavi, Harish; Artaxo, P.; Senik, I. A.; Фролова, Марина; Tarasick, D. W.; Wallasch, Markus; Gonzalez, Margarita Yela; Reid, Nick; Sinha, Vinayak; Tanimoto, Hiroshi; Cuevas-Agulló, Emilio; Sharps, Katrina; Lam, K.S.; Petropavlovskikh, Irina; Steinbacher, Martin; Steer, Kelvyn; Cupeiro, M.; Spain, T.G.; Navarro-Comas, M.; Spoor, Ronald; Laurila, Tuomas; Molloy, Suzie; Barlasina, María Elena; Scorgie, Yvonne; Holla, Robert; Mazzoleni, Cláudio; Lear, Gary; Levy, Ilan; Hjellbrekke, Anne-Gunn; Chang, Lim‐Seok; Helmig, Detlev; Hamad, Samera H.; Koide, Hiroshi; Ueno, Mikio; Apadula, F.; Lee, Meehye; Henriques, Diamantino; Trickl, Thomas; Gros, Valérie; Ding, Aijun; Suharguniyawan, Eka; Colomb, Aurélie; Seguel, R. J.; Schneidemesser, Erika von; Read, Katie A.; Skorokhod, Andrey; Dauert, Ute; Gheusi, F.; Hueber, Jacques; Ancellet, Gérard; Mazzoleni, Lynn; Moolla, Raeesa; Adame, José Antonio; Naja, Manish; Lee, Haeyoung; Weller, Rolf; Jaffe, Daniel A.; Degórska, Anna; Feigenspan, Stefan; Mohamad, Maznorizan; Kubistin, Dagmar; Xue, Likun; Hermansen, Ove; Lyapina, Olga; Saxena, Pallavi; Ries, Ludwig; Chuang, Ming-Tung; McClure-Begley, Audra; Murovec, Marijana; Elshorbany, Yasin; Ma, Zhiqiang; Wang, Tao; Weili, Lin; Parrish, D. D.; Torre, Paul

doi:10.1594/pangaea.876108

Cited by 6 publications

(3 citation statements)

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“…Ozone Observation. 20,21 Ozone Metrics. We include a total of 12 metrics (Table S2) to characterize ozone pollution and its impacts on human health and ecosystems following the TOAR definition.…”

Section: Methodsmentioning

confidence: 99%

“…The Chinese nationwide air quality monitoring network that became available in 2013 provides the first chance to understand surface ozone levels nationwide in China. This network, combined with the recent Tropospheric Ozone Assessment Report (TOAR) that has archived ozone observational networks in the United States, Europe, Japan, and South Korea up to 2014, 20,21 offers a comprehensive view of the surface ozone in the northern midlatitudes. Lu et al 22 showed that present-day (2013−2017) urban surface ozone levels in China were significantly higher than those in other regions reported in TOAR.…”

Section: Introductionmentioning

confidence: 99%

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Rapid Increases in Warm-Season Surface Ozone and Resulting Health Impact in China Since 2013

Zhang

Wang

et al. 2020

Environ. Sci. Technol. Lett.

352

175

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China’s nationwide ozone monitoring network initiated in 2013 has observed severe surface ozone pollution. This network, combined with the recent Tropospheric Ozone Assessment Report (TOAR) data set, offers a more comprehensive view on global surface ozone distribution and trends. Here, we report quantitative estimates of the warm-season (April–September) surface ozone trends and resulting health impacts at Chinese cities in 2013–2019. Both the parametric and nonparametric linear trends for 12 ozone metrics relevant to human health and vegetation exposure are derived. We find that all ozone metrics averaged from Chinese urban sites have increased significantly since 2013. The warm-season daily maximum 8-h average (MDA8) ozone levels increased by 2.4 ppb (5.0%) year–1, with over 90% of the sites showing positive trends and 30% with trends larger than 3.0 ppb year–1. These rates are among the fastest trends, even faster in some Chinese cities, compared with the urban ozone trends in any other region worldwide reported in TOAR. Ozone metrics reflecting the cumulative exposure effect on human health and vegetation such as SOMO35 and AOT40 have increased at even faster rates (>10% year–1). We estimate that the total premature respiratory mortalities attributable to ambient MDA8 ozone exposure in 69 Chinese cities are 64,370 in 2019, which has increased by 60% compared to 2013 levels and requires urgent attention.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Rapid Increases in Warm-Season Surface Ozone and Resulting Health Impact in China Since 2013

Zhang

Wang

et al. 2020

Environ. Sci. Technol. Lett.

352

175

View full text Add to dashboard Cite

show abstract

“…The TOAR is the world's largest collection of in situ hourly surface ozone observations covering 1970− 2015. 16,30 The database contains dense observations in North America, Europe, Japan, and South Korea and sparse observations elsewhere. 7 The database was updated for this project to include readily available datasets for the years 2015− 2017, but measurements were not updated for all nations previously included.…”

Section: ■ Introductionmentioning

confidence: 99%

Mapping Yearly Fine Resolution Global Surface Ozone through the Bayesian Maximum Entropy Data Fusion of Observations and Model Output for 1990–2017

DeLang

Becker

Chang

et al. 2021

Environ. Sci. Technol.

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Estimates of ground-level ozone concentrations are necessary to determine the human health burden of ozone. To support the Global Burden of Disease Study, we produce yearly fine resolution global surface ozone estimates from 1990 to 2017 through a data fusion of observations and models. As ozone observations are sparse in many populated regions, we use a novel combination of the M3Fusion and Bayesian Maximum Entropy (BME) methods. With M3Fusion, we create a multimodel composite by bias-correcting and weighting nine global atmospheric chemistry models based on their ability to predict observations (8834 sites globally) in each region and year. BME is then used to integrate observations, such that estimates match observations at each monitoring site with the observational influence decreasing smoothly across space and time until the output matches the multimodel composite. After estimating at 0.5° resolution using BME, we add fine spatial detail from an additional model, yielding estimates at 0.1° resolution. Observed ozone is predicted more accurately (R 2 = 0.81 at the test point, 0.63 at 0.1°, and 0.62 at 0.5°) than the multimodel mean (R 2 = 0.28 at 0.5°). Global ozone exposure is estimated to be increasing, driven by highly populated regions of Asia and Africa, despite decreases in the United States and Russia.

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Severe Surface Ozone Pollution in China: A Global Perspective

Hong

Zhang

et al. 2018

Environ. Sci. Technol. Lett.

Self Cite

716

386

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The nationwide extent of surface ozone pollution in China and its comparison to the global ozone distribution have not been recognized because of the scarcity of Chinese monitoring sites before 2012. Here we address this issue by using the latest 5 year (2013–2017) surface ozone measurements from the Chinese monitoring network, combined with the recent Tropospheric Ozone Assessment Report (TOAR) database for other industrialized regions such as Japan, South Korea, Europe, and the United States (JKEU). We use various human health and vegetation exposure metrics. We find that although the median ozone values are comparable between Chinese and JKEU cities, the magnitude and frequency of high-ozone events are much larger in China. The national warm-season (April–September) fourth highest daily maximum 8 h average (4MDA8) ozone level (86.0 ppb) and the number of days with MDA8 values of >70 ppb (NDGT70, 29.7 days) in China are 6.3–30% (range of regional mean differences) and 93–575% higher, respectively, than the JKEU regional averages. Health exposure metrics such as warm-season mean MDA8 and annual SOMO35 (sum of ozone means over 35 ppb) are 6.3–16 and 25–95% higher in China, respectively. We also find an increase in the surface ozone level over China in 2016 and 2017 relative to 2013 and 2014. Our results show that on the regional scale the exposure of humans and vegetation to ozone is greater in China than in other developed regions of the world with comprehensive ozone monitoring.

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Tropospheric Ozone Assessment Report, links to Global surface ozone datasets

Cited by 6 publications

References 0 publications

Rapid Increases in Warm-Season Surface Ozone and Resulting Health Impact in China Since 2013

Rapid Increases in Warm-Season Surface Ozone and Resulting Health Impact in China Since 2013

Mapping Yearly Fine Resolution Global Surface Ozone through the Bayesian Maximum Entropy Data Fusion of Observations and Model Output for 1990–2017

Severe Surface Ozone Pollution in China: A Global Perspective

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