Increasing Contributions of Temperature-Dependent Oxygenated Organic Aerosol to Summertime Particulate Matter in New York City

Hass-Mitchell, Tori; Joo, Taekyu; Rogers, Mitchell; Nault, Benjamin A.; Soong, Catelynn; Tran, Mia; Seo, Minguk; Machesky, Jo Ellen; Canagaratna, Manjula; Roscioli, Joseph; Claflin, Megan S.; Lerner, Brian M.; Blomdahl, Daniel C.; Misztal, Pawel K.; Ng, Nga L.; Dillner, Ann M.; Bahreini, Roya; Russell, Armistead; Krechmer, Jordan E.; Lambe, Andrew; Gentner, Drew R.

doi:10.1021/acsestair.3c00037

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Increasing Contributions of Temperature-Dependent Oxygenated Organic Aerosol to Summertime Particulate Matter in New York City

2024
By Hass-Mitchell, Tori ; Joo, Taekyu ; Rogers, Mitchell ; ...
Source: ACS ES&T Air, 1(2), 113-128

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Journal Title:

ACS ES&T Air
Personal Author:

Hass-Mitchell, Tori ; Joo, Taekyu ; Rogers, Mitchell ; Nault, Benjamin A. ; Soong, Catelynn ; ... More +

Hass-Mitchell, Tori ; Joo, Taekyu ; Rogers, Mitchell ; Nault, Benjamin A. ; Soong, Catelynn ; Tran, Mia ; Seo, Minguk ; Machesky, Jo Ellen ; Canagaratna, Manjula ; Roscioli, Joseph ; Claflin, Megan S. ; Lerner, Brian M. ; Blomdahl, Daniel C. ; Misztal, Pawel K. ; Ng, Nga L. ; Dillner, Ann M. ; Bahreini, Roya ; Russell, Armistead ; Krechmer, Jordan E. ; Lambe, Andrew ; Gentner, Drew R. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research)
Description:

As part of the summer 2022 NYC-METS (New York City metropolitan Measurements of Emissions and TransformationS) campaign and the ASCENT (Atmospheric Science and Chemistry mEasurement NeTwork) observational network, speciated particulate matter was measured in real time in Manhattan and Queens, NY, with additional gas-phase measurements. Largely due to observed reductions in inorganic sulfate aerosol components over the 21st century, summertime aerosol composition in NYC has become predominantly organic (80–83%). Organic aerosol source apportionment via positive matrix factorization showed that this is dominated by secondary production as oxygenated organic aerosol (OOA) source factors comprised 73–76% of OA. Primary factors, including cooking-related organic aerosol (COA) and hydrocarbon-like organic aerosol (HOA) comprised minor fractions of OA, only 13–15% and 10–11%, respectively. The two sites presented considerable spatiotemporal variations in OA source factor concentrations despite similar average PM2.5 concentrations. The less- and more-oxidized OOA factors exhibited clear temperature dependences at both sites with increased concentrations and greater degrees of oxidation at higher temperatures, including during a heatwave. With strong temperature sensitivity and minimal changes in summertime concentrations since 2001, secondary OA poses a particular challenge for air quality policy in NYC that will very likely be exacerbated by continued climate change and extreme heat events.
Source:

ACS ES&T Air, 1(2), 113-128
DOI:

https://doi.org/10.1021/acsestair.3c00037
ISSN:

2837-1402;2837-1402;
Format:

pdf
Publisher:

American Chemical Society (ACS)
Document Type:

Journal Article
Funding:

Grant no. NA20OAR4310304 ; Grant no. NA20OAR4310305 ; Grant no. NA21OAR4310140 ; Grant no. NA21OAR4310141

Grant no. NA20OAR4310304 ; Grant no. NA20OAR4310305 ; Grant no. NA21OAR4310140 ; Grant no. NA21OAR4310141 Less -
License:

https://creativecommons.org/licenses/by-nc-nd/4.0/
Rights Information:

CC BY-NC-ND
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Library
Main Document Checksum:

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urn:sha-512:c4b1119bb25c356eaec9d9eb34756943055b969bc9717c25221f739cac0aa9b7c8f79addaa5038a8dc0b3d55d7e43d5c008abcb877287b1f55f075cecd8e64ef
Download URL:

https://repository.library.noaa.gov/view/noaa/67873/noaa_67873_DS1.pdf
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Increasing Contributions of Temperature-Dependent Oxygenated Organic Aerosol to Summertime Particulate Matter in New York City

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