Space-Based Observations of Ozone Precursors within California Wildfire Plumes and the Impacts on Ozone-NO<sub><i>x</i></sub>-VOC Chemistry

Jin, Xiaomeng; Fiore, Arlene M.; Cohen, Ronald C.

doi:10.1021/acs.est.3c04411

Cited by 16 publications

(4 citation statements)

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“…The Integrated Clinical and Environmental Exposures Service (ICEES) provides regulationcompliant open access to electronic health record data that have been integrated with environmental exposure data, as well as analytic tools to explore the integrated data. Results suggest that the open-source ICEES can be used to replicate and extend published findings on factors that influence asthma exacerbations (198)(199)(200) (203)(204)(205). Big datasets and analytics that integrate statistics, computer science, biomedicine, and public health are being developed that can assist with understanding the complex dynamics between the environment and health.…”

Section: Data Science Methodsmentioning

confidence: 80%

Immune-mediated disease caused by climate change-associated environmental hazards: mitigation and adaptation

Agache,

Akdis,

Akdis

et al. 2024

Front. Sci.

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Global warming and climate change have increased the pollen burden and the frequency and intensity of wildfires, sand and dust storms, thunderstorms, and heatwaves—with concomitant increases in air pollution, heat stress, and flooding. These environmental stressors alter the human exposome and trigger complex immune responses. In parallel, pollutants, allergens, and other environmental factors increase the risks of skin and mucosal barrier disruption and microbial dysbiosis, while a loss of biodiversity and reduced exposure to microbial diversity impairs tolerogenic immune development. The resulting immune dysregulation is contributing to an increase in immune-mediated diseases such as asthma and other allergic diseases, autoimmune diseases, and cancer. It is now abundantly clear that multisectoral, multidisciplinary, and transborder efforts based on Planetary Health and One Health approaches (which consider the dependence of human health on the environment and natural ecosystems) are urgently needed to adapt to and mitigate the effects of climate change. Key actions include reducing emissions and improving air quality (through reduced fossil fuel use), providing safe housing (e.g., improving weatherization), improving diets (i.e., quality and diversity) and agricultural practices, and increasing environmental biodiversity and green spaces. There is also a pressing need for collaborative, multidisciplinary research to better understand the pathophysiology of immune diseases in the context of climate change. New data science techniques, biomarkers, and economic models should be used to measure the impact of climate change on immune health and disease, to inform mitigation and adaptation efforts, and to evaluate their effectiveness. Justice, equity, diversity, and inclusion (JEDI) considerations should be integral to these efforts to address disparities in the impact of climate change.

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Section: Data Science Methodsmentioning

confidence: 80%

Immune-mediated disease caused by climate change-associated environmental hazards: mitigation and adaptation

Agache,

Akdis,

Akdis

et al. 2024

Front. Sci.

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“…Wildfires are a source of two O 3 precursors, NO x and volatile organic compounds (VOCs). As the plumes are transported, it is understood that they quickly become NO x limited, with no increase in NO 2 after ∼3 hr (Jin et al., 2023; Peng et al., 2021). And so, the interaction of the NO x ‐limited plume with a NO x ‐rich urban area has the potential to cause O 3 formation and lower urban air quality (Apel et al., 2015; Brey & Fischer, 2016; McClure & Jaffe, 2018; Ninneman & Jaffe, 2021; Rickly et al., 2023; Xu et al., 2021).…”

Section: Resultsmentioning

confidence: 99%

“…A recent study in Boulder, Colorado concluded that in NO x ‐limited urban environments, observed increases in O 3 from wildfires arose solely from transported O 3 produced from plume chemistry and not from additional photochemical local formation of O 3 (Rickly et al., 2023). Conversely, cities in California were predominantly VOC‐limited, and aged biomass burning plumes that were low in NO 2 but high in VOCs enhanced local O 3 production (Jin et al., 2023).…”

Section: Resultsmentioning

confidence: 99%

The Measured Impact of Wildfires on Ozone in Western Canada From 2001 to 2019

Schneider,

Shi,

Abbatt

2024

JGR Atmospheres

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The impacts on atmospheric ozone (O3) due to wildfires are difficult to characterize due to the many factors that affect O3's formation rate and the episodic nature of fire events. This study uses a very large set of air quality data (518,987 6‐hr data points) collected in Western Canada from 2001 to 2019 to determine the prevalence and severity of fire‐driven increases to measured O3 values. Wildfire events are identified using the automated Trajectory‐Fire Interception Method (TFIM), looking for interceptions between HYSPLIT back‐trajectories and wildfire hotspots. As with other studies, which have used more restricted sets of measurements, the results from this large‐scale, data‐driven approach indicate increases in the O3 mixing ratio with wildfire impact, on average ∼2 ppbv across all wildfire time periods. To understand the factors which lead to the largest increases, and to better compare to other studies looking at individual fire events, wildfire events are classified using their distance from the air quality measurement location, time of measurement, and corresponding PM2.5 value. Increases to O3 are largest during the daytime, when fires occur close to the air quality measurement, and with corresponding measurements of PM2.5 > 25 μg/m3. When an upper‐limit correction for the bias in UV photometric detection of ozone with MnCl2 scrubbers is applied, the analysis still yields a persistent increase in O3 during wildfires except for the highest PM2.5 levels. However, a more accurate correction to the potential bias is needed to fully understand the magnitude of the impact of wildfires on O3.

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“…An in-depth understanding of the formation mechanism of ambient ozone plays a non-ignorable role in ozone pollution mitigation (Liu and Shi, 2021;Unger et al, 2006). The major precursors of ozone, including nitrogen oxides (NO x ) and volatile organic compounds (VOC), and the ozone-NO x -VOC sensitivity have become a research focus and the essential reference for investigating the ozone pollution mechanism (Kuo and Fu, 2023;Rabl and Eyre, 1998;Jin et al, 2023). Some studies simulated the ozone pollution level based on NO x and VOCs emissions (Li et al, 2023;Sharma et al, 2016).…”

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

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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.

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Space-Based Observations of Ozone Precursors within California Wildfire Plumes and the Impacts on Ozone-NO_x-VOC Chemistry

Cited by 16 publications

References 100 publications

Immune-mediated disease caused by climate change-associated environmental hazards: mitigation and adaptation

Immune-mediated disease caused by climate change-associated environmental hazards: mitigation and adaptation

The Measured Impact of Wildfires on Ozone in Western Canada From 2001 to 2019

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

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Space-Based Observations of Ozone Precursors within California Wildfire Plumes and the Impacts on Ozone-NOx-VOC Chemistry

Cited by 16 publications

References 100 publications

Immune-mediated disease caused by climate change-associated environmental hazards: mitigation and adaptation

Immune-mediated disease caused by climate change-associated environmental hazards: mitigation and adaptation

The Measured Impact of Wildfires on Ozone in Western Canada From 2001 to 2019

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

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Resources

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Space-Based Observations of Ozone Precursors within California Wildfire Plumes and the Impacts on Ozone-NO_x-VOC Chemistry