1. Measurement of Ozone Production Rate
Hao Huang, Juan Najera, Kate Faloon and Bill Bloss
School of Geography, Earth and Environmental Sciences University of Birmingham Edgbaston Birmingham

2. Impacts of Ambient Ozone
Act as greenhouse gas
Photochemical smog
Harmful to Humans and Plants
Precursor for Atmospheric Oxidants
(OH radicals)

3. Ozone production Chemistry

4. Ozone Production Rate(OPR) Project Aims
To develop and apply a new instrument to directly measure local atmospheric ozone production rates - for comparison with, and validation of, numerical models.
Accurately measured local ozone production rate data is very useful for developing VOC or NOx control strategy at local level.

5. OPR System Principle We have been measuring d[Ox]/dt
Simplified OPR system connections
NO + O3  NO + O2
NO2 + hv  NO + O   NO + O3
NOx = NO + NO2
OX = NO2 + O3
We have been measuring d[Ox]/dt

6. OPR instrument during winter clearfLo in London 2012

7. OPR instrument during summer clearfLo in London 2012

8. Thu 9 / Fri 10 Aug preliminary results in London

9. Our future work Improvements on the several components of OPR system.
Future data analysis.
Compare measured OPR to Modelling in the future…

10. Thank you
Questions?