Potential air quality effects of using ethanol-gasoline fuel blends: A field study in Albuquerque, New Mexico
Abstract
The use of alternate fuels has been proposed as a method of improving urban air quality by reducing combustion- related pollution. One such program mandates the use of oxygenates in the wintertime to reduce CO emissions in cities such as Albuquerque, NM. A field study was conducted in Albuquerque to determine the atmospheric impacts of the use of ethanol fuels. Atmospheric concentrations of ozone, oxides of nitrogen, CO, peroxyacetyl nitrate (PAN), aldehydes, and organic acids were measured in the summer of 1993, before the use of ethanol fuels, and in the winters of 1994 and 1995, during the use of 10% ethanol fuel (>99%). Data showed increased levels of peroxyacetyl nitrate (PAN) and aldehydes in winter. The formaldehyde/acetaldehyde ratio was 1.4, indicating an anthropogenic source, and PAN and acetaldehyde levels were anti-correlated over short time periods, indicating primary acetaldehyde emissions. A comparison of data taken at rural sites south of the city indicates that although there is a significant anthropogenic component to the aldehyde concentrations during the winter, there are also contributions from the photochemical oxidation of natural hydrocarbons.
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Once formed, acetaldehyde is rapidly removed from the atmosphere by reaction with OH and photolysis that enhances HOx levels.
“Once formed, acetaldehyde is rapidly removed from the atmosphere by reaction with OH and importantly photolysis that enhances HO x levels.”
From Investigation of Biofuel as a Potential Renewable Energy Source (2021) · cites this paper as [99]
Reaction with OH involves H-abstraction from the carbonyl carbon to form a peroxyacetyl radical which can react with NO2 to produce PAN.
“Reaction with OH involves H-abstraction from the carbonyl carbon to form a peroxyacetyl radical which can go on to react with NO 2 and produce PAN [98,99].”
From Investigation of Biofuel as a Potential Renewable Energy Source (2021) · cites this paper as [99]
Studies in Brazil and New Mexico have shown increased concentrations of acetaldehyde and PAN in the atmosphere during periods of increased biofuel use.
“Studies in Brazil and New Mexico have shown increased concentrations of acetaldehyde and PAN in the atmosphere during periods of increased biofuel use [99].”
From Investigation of Biofuel as a Potential Renewable Energy Source (2021) · cites this paper as [99]
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The impacts of combustion emissions on air quality and climate – From coal to biofuels and beyond
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- Authors
- Gaffney, J. S., Marley, N. A., Martin, R. S., Dixon, R. W., Reyes, L. G., & Popp, C. J.
- Affiliations
- Argonne National Laboratory (US)
- Corresponding author
- Gaffney, Jeffrey S.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 1997-10-29
- Volume
- 31
- Issue
- 11
- Pages
- 3053-3061
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2008040030
- Cited by
- 97
- References
- 18
- Citations by year
- 2026: 1 · 2024: 1 · 2022: 1 · 2021: 3 · 2020: 2 · 2018: 3 · 2017: 4 · 2016: 2 · 2015: 3 · 2014: 2 · 2013: 4 · 2012: 5
- FWCI
- 3.44
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Environmental Science & Technology (publishedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Atmospheric Science › Atmospheric chemistry and aerosols
- Physical Sciences › Engineering › Automotive Engineering › Vehicle emissions and performance
- Physical Sciences › Chemical Engineering › Fluid Flow and Transfer Processes › Advanced Combustion Engine Technologies
- Keywords
- ethanol-gasoline blends, oxygenated compounds, urban air quality, peroxyacetyl nitrate, aldehydes, acetaldehyde, formaldehyde, nitrogen oxides, ozone, carbon monoxide, organic acids, primary emissions, seasonal variation, Albuquerque
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