Rates of Wintertime Atmospheric SO2 Oxidation based on Aircraft Observations during Clear-Sky Conditions over the Eastern United States

Green, Jaime R.; Fiddler, Marc N.; Holloway, John S.; Fibiger, Dorothy L.; McDuffie, Erin E.; Campuzano‐Jost, Pedro; Schroder, Jason C.; Jimenez, Jose L.; Weinheimer, Andrew J.; Aquino, Janine; Montzka, D. D.; Hall, Samuel R.; Ullmann, Kirk; Shah, Viral; Jaeglé, Lyatt; Thornton, Joel A.; Bililign, Solomon; Brown, Steven S.

doi:10.1029/2018JD030086

Advanced Search

Select up to three search categories and corresponding keywords using the fields to the right. Refer to the Help section for more detailed instructions.

Search our Collections & Repository

Advanced Search
Custom Query

All these words:

For very narrow results

This exact word or phrase:

When looking for a specific result

Any of these words:

Best used for discovery & interchangable words

None of these words:

Recommended to be used in conjunction with other fields

Language:

Dates

Publication Date Range:

to

Document Data

Title:

Document Type:

Library

Collection:

Series:

People

Author:

Clear All

Query Builder

Query box

Clear All

For additional assistance using the Custom Query please check out our Help Page

i

Rates of Wintertime Atmospheric SO2 Oxidation based on Aircraft Observations during Clear-Sky Conditions over the Eastern United States

2019
By Green, Jaime R. ; Fiddler, Marc N. ; Holloway, John S. ; ...
Source: Journal of Geophysical Research: Atmospheres

[PDF-3.75 MB]

Details Related Documents You May Also Like

Details:

Journal Title:

Journal of Geophysical Research: Atmospheres
Personal Author:

Green, Jaime R. ; Fiddler, Marc N. ; Holloway, John S. ; Fibiger, Dorothy L. ; McDuffie, Erin E. ; ... More +

Green, Jaime R. ; Fiddler, Marc N. ; Holloway, John S. ; Fibiger, Dorothy L. ; McDuffie, Erin E. ; Campuzano‐Jost, Pedro ; Schroder, Jason C. ; Jimenez, Jose L. ; Weinheimer, Andrew J. ; Aquino, Janine ; Montzka, D. D. ; Hall, Samuel R. ; Ullmann, Kirk ; Shah, Viral ; Jaeglé, Lyatt ; Thornton, Joel A. ; Bililign, Solomon ; Brown, Steven S. Less -
NOAA Program & Office:

OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; CSL (Chemical Sciences Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences)

OAR (Oceanic and Atmospheric Research) ; ESRL (Earth System Research Laboratory) ; CSL (Chemical Sciences Laboratory) ; CIRES (Cooperative Institute for Research in Environmental Sciences) Less -
Description:

Sulfur dioxide (SO2) is emitted in large quantities from coal-burning power plants and leads to various harmful health and environmental effects. In this study, we use plume intercepts from the Wintertime INvestigation of Transport, Emission and Reactivity (WINTER) campaign to estimate the oxidation rates of SO2 under wintertime conditions and the factors that determine SO2 removal. Observations suggest that OH governs the rate SO2 oxidation in the eastern United States during winter. The range of mean oxidation rates during the day from power plants were 0.22–0.71%/hr, producing SO2 lifetimes of 13–43 days, if SO2 consumption is assumed to occur during 10.5 hr of daylight in cloudless conditions. Though most nighttime rate measurements were zero within uncertainty, there is some evidence of nighttime removal, which suggests alternate oxidation mechanisms. The fastest nighttime observed SO2 oxidation rate was 0.25±0.07%/hr, producing a combined day/night SO2 lifetime of 8.5–21 days. The upper limit of the oxidation rate (the mean+1σ of the fastest day and night observations) is 16.5%/day, corresponding to a lifetime of 6.1 days. The analysis also quantifies the primary emission of sulfate from power plants. The median mole percentage of SO4-2 from observed plumes was 1.7% and the mean percentage sulfate was 2.8% for intercepts within 1 hr of transit to power plants. The largest value observed from close intercepts was over 7% sulfate, and the largest extrapolated value was 18%, based on intercepts further from their source and fastest observed oxidation rate.
Keywords:

[+]

Sulfur dioxide
Source:

Journal of Geophysical Research: Atmospheres
DOI:

https://doi.org/10.1029/2018JD030086
Document Type:

Journal Article
Rights Information:

Other
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:a419026bf014a85d571d1a11853036b961e61bdf5ac5cda28347fdc7b512f8ba
Download URL:

https://repository.library.noaa.gov/view/noaa/25921/noaa_25921_DS1.pdf
File Type:

No Additional Files

More +

Rates of Wintertime Atmospheric SO2 Oxidation based on Aircraft Observations during Clear-Sky Conditions over the Eastern United States

Details:

Supporting Files

Related Documents

You May Also Like