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EPA logo National Oceanic and Atmospheric Administration (NOAA), Earth System Research Laboratory (ESRL

What does this program measure?

High-resolution (~ 5 minute) ozone (O3) is sampled.

How does this program work?

A Thermoelectron Model 49C ozone instrument (shown below) is run continuously from Mauna Loa Observatory. (Click photo to enlarge.)

EPA Surface Ozone Analyzer at MLO

Why is this research important?

Are there any trends in the data?

How does this program fit into the big picture?
What is it's role in global climate change?

Comments and References

Lead Investigator(s):

Laura Patrick
303-497- 6823

MLO Contact(s):

David Nardini
808-933-6965 (x229)

Web Site(s)


Date Started

October 18, 2004

Related Programs

EPA Aethalometer
EPA Mercury Monitoring
EPA Mercury Precipitation
EPA Ambient Ion Monitor
EPA Dichotomous Partisol
EPA Fine Particle Sampler
EPA Sulfur Dioxoide


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