Evaluating the spatial patterns of US urban NOx emissions using TROPOMI NO2

Article Environmental Sciences

Surf, Turf, and Above the Earth: Unmet Needs for Coastal Air Quality Science in the Planetary Boundary Layer (PBL)

John T. Sullivan et al.

Summary: Coastal areas are densely populated and economically important regions. Protecting the health of humans and ecosystems in these areas and understanding the impacts of environmental stressors like air pollution is crucial.

EARTHS FUTURE (2023)

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Article Environmental Sciences

Intraurban NO2 hotspot detection across multiple air quality products

Anastasia Montgomery et al.

Summary: High-resolution air quality data products have the potential to quantify inequitable environmental exposures by identifying hotspots. However, different high-resolution data products may identify different hotspots, leading to difficulties in differentiating signal from noise. This study compares NO2 hotspots detected in Chicago using three different high-resolution air quality products and provides insights into dataset discrepancies and potential reasons for inconsistency.

ENVIRONMENTAL RESEARCH LETTERS (2023)

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Article Geosciences, Multidisciplinary

Improved catalog of NOx point source emissions (version 2)

Steffen Beirle et al.

Summary: We present an updated catalog of NOx emissions from point sources, using TROPOMI measurements of NO2 and wind fields from ERA5. The algorithm has been improved, accounting for plume height, topographic effects, and chemical loss of NOx. The v2 catalog lists 1139 significant NOx sources worldwide, matching power plants, cement plants, metal smelters, industrial areas, and medium-sized cities. The emissions in the catalog show good agreement with those reported by the German Environment Agency and the United States Environmental Protection Agency. The data are publicly available at https://doi.org/10.26050/WDCC/No_xPointEmissionsV2 (Beirle et al., 2023).

EARTH SYSTEM SCIENCE DATA (2023)

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Article Geosciences, Multidisciplinary

Comparing Sentinel-5P TROPOMI NO2 column observations with the CAMS regional air quality ensemble

John Douros et al.

Summary: This article introduces the application of Sentinel-5P TROPOspheric Monitoring Instrument (TROPOMI) and Copernicus Atmosphere Monitoring Service (CAMS) in atmospheric quality forecasting. By comparing the observations from TROPOMI with the forecasts from CAMS, it is found that they agree well in summer but show significant discrepancies in winter. The article also discusses the use of profile information from the CAMS configuration of the ECMWF global model and the replacement of global configuration with regional configuration to improve the TROPOMI data product.

GEOSCIENTIFIC MODEL DEVELOPMENT (2023)

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Article Environmental Sciences

Long-term trends in urban NO2 concentrations and associated paediatric asthma incidence: estimates from global datasets

Susan C Anenberg et al.

Lancet Planetary Health (2022)

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Article Environmental Sciences

Estimating city NOX emissions from TROPOMI high spatial resolution observations - A case study on Yangtze River Delta, China

Ruibin Xue et al.

Summary: This study used TROPOMI satellite observations to analyze the NO2 vertical column density (VCD) over the Yangtze River Delta in China. The results show a reduction of about 35% in NO2 VCD during the COVID-19 lockdown period. The study also estimated the NOX emissions in typical cities using an adjusted EMG model and compared it with the Multi-resolution Emission Inventory for China. The findings demonstrate that this approach can enhance the quantification of city-level NOX emissions by utilizing high spatial resolution observations from TROPOMI.

URBAN CLIMATE (2022)

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Article Multidisciplinary Sciences

Neighborhood Emission Mapping Operation (NEMO): A 1-km anthropogenic emission dataset in the United States

Siqi Ma et al.

Summary: This study presents a groundbreaking effort to map anthropogenic emissions of air pollutants in the contiguous United States at a spatial resolution of 1 km. The dataset, known as Neighborhood Emission Mapping Operation (NEMO), provides hourly emissions based on the United States Environmental Protection Agency National Emission Inventories 2017. This dataset allows for fine-scale air quality modeling, air pollution exposure assessment, and environmental justice studies.

SCIENTIFIC DATA (2022)

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Article Environmental Sciences

Inferring and evaluating satellite-based constraints on NOx emissionsestimates in air quality simulations

James D. East et al.

Summary: Satellite observations combined with chemical data assimilation and modeling provide a new framework to estimate NOx emissions. This approach improves the accuracy of emissions estimates by separating near-surface emissions from those aloft. The results have important implications for designing and supporting control strategies for nitrogen oxide emissions.

ATMOSPHERIC CHEMISTRY AND PHYSICS (2022)

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Article Environmental Sciences

Evaluating NOx emissions and their effect on O3 production in Texas using TROPOMI NO2 and HCHO

Daniel L. Goldberg et al.

Summary: The study on NOx emissions investigation and model validation using the Tropospheric Monitoring Instrument (TROPOMI) on the Sentinel-5 Precursor (S5P) satellite reveals the significance of TROPOMI measurements in monitoring NOx emissions and verifying ozone formation regimes. However, there are difficulties in distinguishing emission sources and background concentration by TROPOMI in Texas, and the model may underestimate the NOx/NO2 ratio.

ATMOSPHERIC CHEMISTRY AND PHYSICS (2022)

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Article Meteorology & Atmospheric Sciences

Sentinel-5P TROPOMI NO2 retrieval: impact of version v2.2 improvements and comparisons with OMI and ground-based data

Jos van Geffen et al.

Summary: The improvements in the TROPOMI NO2 retrieval leading to version v2.2 have resulted in more accurate monitoring of nitrogen dioxide emissions from local sources, particularly in areas with low cloud cover and cold climates. Additionally, these enhancements have brought TROPOMI data closer to observations from the Ozone Monitoring Instrument (OMI).

ATMOSPHERIC MEASUREMENT TECHNIQUES (2022)

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Article Environmental Sciences

Exploiting satellite measurements to explore uncertainties in UK bottom-up NOx emission estimates

Richard J. Pope et al.

Summary: Nitrogen oxides are potent air pollutants that directly affect human health and contribute to the formation of other hazardous pollutants. This study uses satellite data to assess the spatiotemporal variability and magnitude of NOx emissions in the United Kingdom and finds a decreasing trend in emissions.

ATMOSPHERIC CHEMISTRY AND PHYSICS (2022)

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Article Meteorology & Atmospheric Sciences

Automated detection of atmospheric NO2 plumes from satellite data: a tool to help infer anthropogenic combustion emissions

Douglas P. Finch et al.

Summary: The study employs a CNN to identify NO2 plumes from satellite data with a success rate of over 90%. Most NO2 plumes are found over mainland China, but there is no correlation with the location of natural gas flaring. Using a CO2 emission inventory, it is determined that the NO2 plume distribution captures 92% of total CO2 emissions.

ATMOSPHERIC MEASUREMENT TECHNIQUES (2022)

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Article Environmental Sciences

A new method for inferring city emissions and lifetimes of nitrogen oxides from high-resolution nitrogen dioxide observations: a model study

Fei Liu et al.

Summary: This study presents a new method to estimate NOx emissions and lifetimes based on NO2 observations and wind field data. The method is applied to simulated data for cities in the continental United States, and the results show that the method is effective for estimating NOx emissions and lifetimes. The method is applicable to 26 US cities and can be used globally to estimate urban NOx emissions and lifetimes.

ATMOSPHERIC CHEMISTRY AND PHYSICS (2022)

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Article Environmental Sciences

Urban NO x emissions around the world declined faster than anticipated between 2005 and 2019

Daniel L. Goldberg et al.

Summary: This study uses satellite remote sensing to estimate urban nitrogen oxide emissions for 80 global cities between 2005 and 2019, revealing a larger downward trend compared to inventory reports, especially in Africa, China, India, Latin America, and the Middle East.

ENVIRONMENTAL RESEARCH LETTERS (2021)

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Article Environmental Sciences

TROPOMI NO2 in the United States: A Detailed Look at the Annual Averages, Weekly Cycles, Effects of Temperature, and Correlation With Surface NO2 Concentrations

Daniel L. Goldberg et al.

Summary: This study explores the capabilities of the Tropospheric Monitoring Instrument (TROPOMI) in observing the spatial and temporal patterns of NO2 pollution in the continental United States, revealing its ability to differentiate sources in urban and rural areas, variations between weekdays and weekends, and correlations with temperature. The study also demonstrates a strong correlation between TROPOMI NO2 satellite data and surface-level concentrations, making it advantageous for policymakers and public health officials needing high-resolution and timely information for regulatory purposes.

EARTHS FUTURE (2021)

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Article Meteorology & Atmospheric Sciences

Assessment of Updated Fuel-Based Emissions Inventories Over the Contiguous United States Using TROPOMI NO2 Retrievals

M. Li et al.

Summary: This study provides updated fuel-based emission inventories until 2018 and demonstrates the importance of nitrogen oxides in the production of tropospheric ozone and fine particles. The model accurately simulates NO2 columns over CONUS and highlights the differences between point sources (plus urban regions) and non-polluted regions.

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES (2021)

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Article Environmental Sciences

Tracking NO2 emission from thermal power plants in North India using TROPOMI data

Gautam Kumar Saw et al.

Summary: Air pollution is a major environmental health risk in India, with coal-fired TPPs identified as the largest source. Strict compliance with emission norms is crucial for effective air quality management. This study used a top-down approach to estimate NO2 emissions from TPPs near Delhi, showing a decrease in emissions during the COVID-19 lockdown period.

ATMOSPHERIC ENVIRONMENT (2021)

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Article Environmental Sciences

Global anthropogenic emissions in urban areas: patterns, trends, and challenges

Monica Crippa et al.

Summary: Urban population nearly doubled worldwide between 1970 and 2015, with urban centres accounting for a third of global anthropogenic greenhouse gases and most air pollutant emissions by 2015. While megacities in high-income countries have been reducing emissions, emissions in developing regions are still on the rise.

ENVIRONMENTAL RESEARCH LETTERS (2021)

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Article Multidisciplinary Sciences

COVID-19 pandemic reveals persistent disparities in nitrogen dioxide pollution

Gaige Hunter Kerr et al.

Summary: The unequal distribution of ambient nitrogen dioxide (NO2) across different demographic subgroups in the United States, particularly among minority and low socioeconomic status communities, was highlighted during the COVID-19 pandemic. Lockdown-related reductions in NO2 levels were more significant in urban neighborhoods with higher proportions of non-White and Hispanic residents, potentially due to greater densities of highways and interstates. However, the overall impact on racial, ethnic, and socioeconomic NO2 disparities was mixed, with marginalized areas still experiencing higher levels of NO2 even during lockdowns compared to predominantly White areas. Future policies to address pollution disparities will need to consider emissions from heavy-duty vehicles in addition to passenger traffic.

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA (2021)

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Article Meteorology & Atmospheric Sciences

Ozone and Nitrogen Dioxide Pollution in a Coastal Urban Environment: The Role of Sea Breezes, and Implications of Their Representation for Remote Sensing of Local Air Quality

Jeffrey A. Geddes et al.

Summary: Sea breeze conditions significantly impact air pollutant concentrations in the Boston region, especially during summer. Mornings preceding sea breezes are characterized by low pollution background and accumulation of local emissions. Sea breeze days exhibit large horizontal gradients, which are more pronounced compared to prevailing westerly or easterly days.

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES (2021)

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Article Meteorology & Atmospheric Sciences

An improved TROPOMI tropospheric NO2 research product over Europe

Song Liu et al.

Summary: The TROPOMI instrument has the potential to monitor global air quality with high spatial resolution, using the DLR algorithm to extract nitrogen dioxide. By implementing algorithm improvements, data accuracy can be enhanced, while the cloud treatment and replacement of measurement data sources also significantly impact the results.

ATMOSPHERIC MEASUREMENT TECHNIQUES (2021)

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Article Environmental Sciences

A satellite-data-driven framework to rapidly quantify air-basin-scale NOx emissions and its application to the Po Valley during the COVID-19 pandemic

Kang Sun et al.

Summary: The study presents a novel framework to estimate NOx emissions based on observed column abundance and wind speed, with an application in the Po Valley in Italy to find a 22% reduction in NOx emissions due to the COVID-19 pandemic in 2020.

ATMOSPHERIC CHEMISTRY AND PHYSICS (2021)

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Article Meteorology & Atmospheric Sciences

The ERA5 global reanalysis

Hans Hersbach et al.

QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETY (2020)

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Short- and intermediate-term exposure to NO2 and mortality: A multi-county analysis in China

Mike Z. He et al.

ENVIRONMENTAL POLLUTION (2020)

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Article Engineering, Environmental

Observing Nitrogen Dioxide Air Pollution Inequality Using High-Spatial-Resolution Remote Sensing Measurements in Houston, Texas

Mary Angelique G. Demetillo et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2020)

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Article Geosciences, Multidisciplinary

A global anthropogenic emission inventory of atmospheric pollutants from sector- and fuel-specific sources (1970-2017): an application of the Community Emissions Data System (CEDS)

Erin E. McDuffie et al.

EARTH SYSTEM SCIENCE DATA (2020)

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Article Meteorology & Atmospheric Sciences

Evaluating Sentinel-5P TROPOMI tropospheric NO2 column densities with airborne and Pandora spectrometers near New York City and Long Island Sound

Laura M. Judd et al.

ATMOSPHERIC MEASUREMENT TECHNIQUES (2020)

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Article Meteorology & Atmospheric Sciences

S5P TROPOMI NO2 slant column retrieval: method, stability, uncertainties and comparisons with OMI

Jos van Geffen et al.

ATMOSPHERIC MEASUREMENT TECHNIQUES (2020)

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Article Economics

Energy efficiency and energy justice for US low-income households: An analysis of multifaceted challenges and potential

Xiaojing Xu et al.

ENERGY POLICY (2019)

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Article Engineering, Environmental

Enhanced Capabilities of TROPOMI NO2: Estimating NOx from North American Cities and Power Plants

Daniel L. Goldberg et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2019)

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Article Multidisciplinary Sciences

Direct observation of changing NOx lifetime in North American cities

Joshua L. Laughner et al.

SCIENCE (2019)

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Article Multidisciplinary Sciences

Pinpointing nitrogen oxide emissions from space

Steffen Beirle et al.

SCIENCE ADVANCES (2019)

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Article Environmental Sciences

Exploiting OMI NO2 satellite observations to infer fossil-fuel CO2 emissions from US megacities

Daniel L. Goldberg et al.

SCIENCE OF THE TOTAL ENVIRONMENT (2019)

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Article Multidisciplinary Sciences

Quantification of nitrogen oxides emissions from build-up of pollution over Paris with TROPOMI

A. Lorente et al.

SCIENTIFIC REPORTS (2019)

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Article Environmental Sciences

A top-down assessment using OMI NO2 suggests an underestimate in the NOx emissions inventory in Seoul, South Korea, during KORUS-AQ

Daniel L. Goldberg et al.

ATMOSPHERIC CHEMISTRY AND PHYSICS (2019)

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Air pollution knowledge assessments (APnA) for 20 Indian cities

Sarath K. Guttikunda et al.

URBAN CLIMATE (2019)

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Who is buying electric vehicles in California? Characterising early adopter heterogeneity and forecasting market diffusion

Jae Hyun Lee et al.

ENERGY RESEARCH & SOCIAL SCIENCE (2019)

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Article Chemistry, Analytical

Top-Down NOX Emissions of European Cities Based on the Downwind Plume of Modelled and Space-Borne Tropospheric NO2 Columns

Willem W. Verstraeten et al.

SENSORS (2018)

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Article Meteorology & Atmospheric Sciences

Improving algorithms and uncertainty estimates for satellite NO2 retrievals: results from the quality assurance for the essential climate variables (QA4ECV) project

K. Folkert Boersma et al.

ATMOSPHERIC MEASUREMENT TECHNIQUES (2018)

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Article Geosciences, Multidisciplinary

Gridded emissions of air pollutants for the period 1970-2012 within EDGAR v4.3.2

Monica Crippa et al.

EARTH SYSTEM SCIENCE DATA (2018)

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The Ozone Monitoring Instrument: overview of 14 years in space

Pieternel F. Levelt et al.

ATMOSPHERIC CHEMISTRY AND PHYSICS (2018)

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Review Environmental Sciences

Exposure to traffic-related air pollution and risk of development of childhood asthma: A systematic review and meta-analysis

Haneen Khreis et al.

ENVIRONMENT INTERNATIONAL (2017)

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A high-resolution and observationally constrained OMI NO2 satellite retrieval

Daniel L. Goldberg et al.

ATMOSPHERIC CHEMISTRY AND PHYSICS (2017)

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NOx emission trends over Chinese cities estimated from OMI observations during 2005 to 2015

Fei Liu et al.

ATMOSPHERIC CHEMISTRY AND PHYSICS (2017)

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Structural uncertainty in air mass factor calculation for NO2 and HCHO satellite retrievals

Alba Lorente et al.

ATMOSPHERIC MEASUREMENT TECHNIQUES (2017)

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HTAP_v2.2: a mosaic of regional and global emission grid maps for 2008 and 2010 to study hemispheric transport of air pollution

G. Janssens-Maenhout et al.

ATMOSPHERIC CHEMISTRY AND PHYSICS (2015)

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Ozone and NOx chemistry in the eastern US: evaluation of CMAQ/CB05 with satellite (OMI) data

T. P. Canty et al.

ATMOSPHERIC CHEMISTRY AND PHYSICS (2015)

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TROPOMI on the ESA Sentinel-5 Precursor: A GMES mission for global observations of the atmospheric composition for climate, air quality and ozone layer applications

J. P. Veefkind et al.

REMOTE SENSING OF ENVIRONMENT (2012)

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Affluent Neighborhood Persistence and Change in U.S. Cities

Claudia D. Solari

CITY & COMMUNITY (2012)

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Megacity Emissions and Lifetimes of Nitrogen Oxides Probed from Space

Steffen Beirle et al.

SCIENCE (2011)

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An improved NO2 retrieval for the GOME-2 satellite instrument

A. Richter et al.

ATMOSPHERIC MEASUREMENT TECHNIQUES (2011)

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An improved tropospheric NO2 column retrieval algorithm for the Ozone Monitoring Instrument

K. F. Boersma et al.

ATMOSPHERIC MEASUREMENT TECHNIQUES (2011)

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Hit from both sides: tracking industrial and volcanic plumes in Mexico City with surface measurements and OMI SO2 retrievals during the MILAGRO field campaign

B. de Foy et al.

ATMOSPHERIC CHEMISTRY AND PHYSICS (2009)

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Associations between short-term changes in nitrogen dioxide and mortality in Canadian cities

RT Burnett et al.

ARCHIVES OF ENVIRONMENTAL HEALTH (2004)

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Air mass factor formulation for spectroscopic measurements from satellites: Application to formaldehyde retrievals from the Global Ozone Monitoring Experiment

PI Palmer et al.

JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES (2001)

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Evaluating the spatial patterns of US urban NOx emissions using TROPOMI NO2

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