Why Is Ozone Worse on Hot days

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Why Is Ozone Worse on Hot days?
Team C
Demar Graham Shiane Hemsley Tomishia
Peggues Shanna Scott Erica Stafford
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What is Ozone?
? A compound made up of 3 atoms (O3).
? Good ozone is located about 6 to 30 miles
above us and doesnt do any harm.
? Bad ozone is located directly above us and
can cause serious health effects like asthma,
nasal congestion, and bronchitis.
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Purpose
? How is ozone formed?
? What does the air chemistry data collected in
the summer of 2006 in Houston, Texas tell us
about the ozone?
? Why is ozone pollution worse on hot days?
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How Is Ozone Created?

• There are 3 main ingredients for Ozone.
• NOx
• VOCs
• Sunlight

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AQI of Surface Ozone at Summertime, 2006
This graph shows the United States ozone
pollution levels.
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Methods
? Based on the measurements of NOx, VOC,
sunlight, and meteorological parameters during
Aug 11-Sep 27, 2006 in Houston
? Data analysis by MATLAB
? Compare data on hot days (Tempgt30ºC) and cool
days (Templt30ºC)
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Measurment Results
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Measurment Results 2
NOx(ppbv)
VOC(ppbv)
Sunlight
O3
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Data Analysis
Parts per billion
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Conclusion
Sunlight is the major factor for ozone
production processes.
For big cities, such as Houston, more NOx and
VOCs are emitted by human activity, leading to
high ozone production.
On hot days, more sunlight induces more
photochemical reactions (involving NOx and VOCs
in the atmosphere), leading to high ozone
concentration.
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What does this mean?
This means that hotter days could have bad health
effects.
Bad economical effects due to sun intensity, and
increased emission.
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Further Research
? Find a way to reduce controllable sources of
ozone
? Encourage politicians to sign a policy
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Acknowledgements

• ? College of Earth and Mineral Sciences
• ?Dr. William Brune
• ? Dr. Xinrong Ren
• ? Jingqiu Mao
• Shuang Chen
• Ms. Jody Markley
• UBMS Staff
• ? NASA
• US EPA
• (Environmental Protection Agency)

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QUESTIONS