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Overview
Basics
Basics
The project tested the hypothesis that the majority of precursors for ozone formation come from sources in Lake Tahoe Basin, and not from the Central Valley of California or other airsheds adjacent Lake Tahoe.
Completed
2010
2010
2016
$400,487
Alan Heyvaert (alan.heyvaert@dri.edu)
10/30/2017
10/30/2017
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| Location Information | Location Notes |
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Organizations
EIP Details
EIP Basics
EIP Basics
04.01.01.0112 - P075: Secondary Pollutant Formation in the Lake Tahoe Basin
Performance Measures
Expected Performance Measures
Expected Performance Measures
No expected performance measures set for this project.
Reported Performance Measures
Reported Performance Measures
No annual performance measure accomplishments entered for this project.
Funding
Expected Funding
Expected Funding
$400,487
$400,487
$0
| Total | |||
|---|---|---|---|
| Southern Nevada Public Land Management Act (Pacific Southwest Research Station) (USFS - PSW) | $400,487 | $400,487 | $0 |
| Grand Total | $400,487 | $400,487 | $0 |
Reported Expenditures
Reported Expenditures
| Total | 2016 | 2015 | 2014 | 2013 | 2012 | 2011 | 2010 | |
|---|---|---|---|---|---|---|---|---|
| Southern Nevada Public Land Management Act (Pacifi... | $400,487 | $57,213 | $57,212 | $57,212 | $57,213 | $57,213 | $57,212 | $57,212 |
| Grand Total | $400,487 | $57,213 | $57,212 | $57,212 | $57,213 | $57,213 | $57,212 | $57,212 |
Photos
Other Details
Watersheds
No watersheds set for this project.
Threshold Categories
-
The proposed study will characterize the precursors and pathways of secondary pollutant formation, including ozone.
Local and Regional Plans
No Local and Regional Plans set for this project.
Related Projects
Related Projects
No Related Projects set for this project.
External Links
Notes
Notes
| 10/30/2017 4:18 PM | Matt Driscoll | 2017: Report is currently a draft | ||
| 07/11/2017 8:28 PM | Kiara Cuerpo-Hadsall | Objectives: The proposed study will characterize the precursors and pathways of secondary pollutant formation, including ozone (O3), secondary organic aerosol (SOA) and ammonium nitrate (NH4NO3) in the Lake Tahoe Basin. Specifically: • Identify the precursors and pathways leading to the formation of secondary pollutants, including ozone, NH4NO3 and SOA • To employ the air quality model CAMx to predict the formation of O3, SOA and NH4NO3. Model output will be compared to observations made during the field campaign portion of this project to assess the model’s capabilities and potential biases. • Provide information for important policy decisions designed to reduce air and water impacts of atmospheric pollutants. |
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| 07/11/2017 8:27 PM | Kiara Cuerpo-Hadsall | Findings: The majority of O3 precursors (VOC and NOx) are emitted in the urbanized areas of the Central Valley and possibly the San Francisco Bay Area. • Model simulations indicate the majority of SOA precursors are emitted upwind of the Lake Tahoe Basin. Ozone is transported from aloft upwind as well, influencing ozone levels in-basin significantly. • In-basin contribution to observed O3 and SOA level is limited. • In-basin NOx concentrations are very low. In basin O3 control strategies may not be warranted |
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| 07/11/2017 8:25 PM | Kiara Cuerpo-Hadsall | Management Implications: Reduction in ozone levels will reduce the amount of SOA by a modest amount. Ozone reaction rates with SOA precursors are slow compared with other oxidants, such as hydroxyl radical. In addition, since the majority of SOA precursors originate from out-of-basin sources, reduction of O3 level in the Tahoe Basin area would not influence significantly the amount of SOA in the Basin. |
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| 07/11/2017 8:24 PM | Kiara Cuerpo-Hadsall | Publications: www.fs.fed.us/PSW/partnerships/tahoescience |