Title: Apportioning the Sources of Ozone Production during the San Antonio Field Study

Institution(s) Represented: Aerodyne Research, Inc. - Tara Yacovitch

Lead PI: Tara Yacovitch

AQRP Project Manager: Elena McDonald-Buller

TCEQ Project Liaison: Bright Dornblaser

Awarded Amount: $199,974.00

Abstract

Ozone high up in the stratosphere is protective against UV rays, but when it is present at ground-level, it is a pollutant that can cause shortness of breath and other respiratory health problems. With new federal ozone standards in effect, it is more important than ever to understand the causes of ozone in and around San Antonio.

Ozone is formed when volatile organic hydrocarbons (VOCs) react with the nitrogen oxides (NOx, the primary component in smog). A wide variety of VOCs are present in the air around cities such as San Antonio; they stem from sources as varied as vehicle exhaust, oil and gas extraction, and trees and vegetation. This project aims to discover which sources contribute to the formation of ground-level ozone in and around San Antonio, and in what quantities.

Raw data from the 2017 San Antonio Field Study (SAFS) will be examined closely and analyzed in full to identify characteristic sets of VOCs associated with different source types. Computer modeling of air transport will help identify the broad geographic areas where the measured air originated. An ozone formation computer model, in which individual source categories can be turned on, off, or varied, will be used to understand how each source type contributes to ozone formation in and around San Antonio.

Work Plan: projectinfoFY18_19\19-025\19-025 Scope.pdf
Technical Report(s): projectinfoFY18_19\19-025\19-025 MTR Oct 2018.pdf
Technical Report(s): projectinfoFY18_19\19-025\19-025 MTR Nov 2018.pdf
Technical Report(s): projectinfoFY18_19\19-025\19-025 MTR Dec 2018.pdf
Technical Report(s): projectinfoFY18_19\19-025\19-025 MTR Jan 2019.pdf
Technical Report(s): projectinfoFY18_19\19-025\19-025 MTR Feb 2019.pdf
Technical Report(s): projectinfoFY18_19\19-025\19-025 MTR Mar 2019.pdf
Technical Report(s): projectinfoFY18_19\19-025\19-025 MTR Apr 2019.pdf
Technical Report(s): projectinfoFY18_19\19-025\19-025 MTR May 2019.pdf
Technical Report(s): projectinfoFY18_19\19-025\19-025 MTR Jun 2019.pdf
Technical Report(s): projectinfoFY18_19\19-025\19-025 MTR Jul 2019.pdf

QAPP: projectinfoFY18_19\19-025\19-025 QAPP.pdf

Final Report: projectinfoFY18_19\19-025\19-025 Final Report.pdf