Investigating sensitivity of ozone to emission reductions in the New York City (NYC) metropolitan and downwind areas

Tran, Trang; Kumar, Naresh; Knipping, Eladio

doi:10.1016/j.atmosenv.2023.119675

Cited by 7 publications

(2 citation statements)

References 34 publications

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“…Many locations, particularly the New York City Metropolitan area, saw O 3 mixing ratios exceeding National Ambient Air Quality Standards, with mixing ratios reaching over 100 ppbv. (Tian et al, 2020;Tran et al, 2023).…”

Section: Description Of the Pollution Eventmentioning

confidence: 99%

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Lawrence

2024

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Section: Description Of the Pollution Eventmentioning

confidence: 99%

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Lawrence

2024

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“…In urban regions with elevated concentrations of nitrogen oxides (NO x ), VOCs can undergo photochemical reactions leading to the formation of ground-level ozone, which has adverse effects on human health and ecosystems. , The sensitivity of ozone formation to precursor emissions is typically classified as NO x - or VOC-limited. Ozone chemistry still remains VOC-limited in all seasons in urban cores of major US cities (such as New York City, Los Angeles, and Chicago) − even as NO x reduction policies have turned the surrounding areas NO x -limited in summer over the past decades . Quantitative attribution of ozone formation to VOCs from various emission sources is needed to design effective control measures.…”

Section: Introductionmentioning

confidence: 99%

High-Resolution Modeling of Summertime Biogenic Isoprene Emissions in New York City

Wei,

Cao,

Karambelas

et al. 2024

Environ. Sci. Technol.

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As cities strive for ambitious increases in tree canopy cover and reductions in anthropogenic volatile organic compound (AVOC) emissions, accurate assessments of the impacts of biogenic VOCs (BVOCs) on air quality become more important. In this study, we aim to quantify the impact of future urban greening on ozone production. BVOC emissions in dense urban areas are often coarsely represented in regional models. We set up a high-resolution (30 m) MEGAN (The Model of Emissions of Gases and Aerosols from Nature version 3.2) to estimate summertime biogenic isoprene emissions in the New York City metro area (NYC-MEGAN). Coupling an observation-constrained box model with NYC-MEGAN isoprene emissions successfully reproduced the observed isoprene concentrations in the city core. We then estimated future isoprene emissions from likely urban greening scenarios and evaluated the potential impact on future ozone production. NYC-MEGAN predicts up to twice as much isoprene emissions in NYC as the coarse-resolution (1.33 km) Biogenic Emission Inventory System version 3.61 (BEIS) on hot summer days. We find that BVOCs drive ozone production on hot summer days, even in the city core, despite large AVOC emissions. If high isoprene emitting species (e.g., oak trees) are planted, future isoprene emissions could increase by 1.4−2.2 times in the city core, which would result in 8−19 ppbv increases in peak ozone on ozone exceedance days with current NO x concentrations. We recommend planting non-or low-isoprene emitting trees in cities with high NO x concentrations to avoid an increase in the frequency and severity of future ozone exceedance events.

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Long-term contributions of VOC sources and their link to ozone pollution in Bronx, New York City

Borlaza-Lacoste,

Aynul Bari,

et al. 2024

Environment International

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Investigating sensitivity of ozone to emission reductions in the New York City (NYC) metropolitan and downwind areas

Cited by 7 publications

References 34 publications

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High-Resolution Modeling of Summertime Biogenic Isoprene Emissions in New York City

Long-term contributions of VOC sources and their link to ozone pollution in Bronx, New York City

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